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Alternative Farming Systems Information Center of the National Agricultural Library
Agricultural Research Service, U.S. Department of Agriculture


Breeding and Selecting Crops for Insect Pest Resistance
January 1986 - December 1991

 
 TITLE: Breeding and Selecting Crops for Insect Pest Resistance
 PUBLICATION DATE: February 1992 
 AUTHOR:  Jane Potter Gates
          Alternative Farming Systems Information Center
          National Agricultural Library
 SERIES:  QB 92-25
 NAL Call no.:   aZ5071.N3 no.92-25
 CONTACT:  Alternative Farming Systems Information Center
           National Agricultural Library
           Room 304, 10301 Baltimore Ave.
           Beltsville, MD  20705-2351
           Telephone:  (301) 504-6559
           http://afsic.nal.usda.gov 
 
 
 ==============================================================
                                              ISSN:  1052-5378
 United States Department of Agriculture      
 National Agricultural Library
 10301 Baltimore Blvd.
 Beltsville, Maryland  20705-2351
 
 Breeding and Selecting Crops for Insect Pest Resistance
 January 1986 - December 1991
 
 Quick Bibliography Series:  QB 92-25
 Updates QB 89-75
 
 496 citations from AGRICOLA
 
 Jane Potter Gates
 Alternative Farming Systems Information Center
 
 February 1992

 National Agricultural Library Cataloging Record:
 Gates, Jane Potter
   Breeding and selecting of crops for pest resistance.
   (Quick bibliography series ; 92-25)
   1. Crops Disease and pest resistance Bibliography. 2. Plant
 breeding Bibliography. 3. Plant selection Bibliography. I. Title.
 aZ5071.N3 no.92-25
 
 AGRICOLA
 
 Citations in this bibliography were entered in the AGRICOLA
 database between January 1979 and the present.

Search AGRICOLA (http://agricola.nal.usda.gov) to update this Quick Bibliography. 
Use the search strategy and terms located below, plus the extensive AGRICOLA Help 
site to locate recent literature on your subject of interest.


 About the Quick Bibliography Series

Bibliographies in the Quick Bibliography Series of the National
 Agricultural Library, are intended primarily for current
 awareness, and as the title of the series implies, are not
 indepth exhaustive bibliographies on any given subject.  However,
 the citations are a substantial resource for recent
 investigations on a given topic.  They also serve the purpose of
 bringing the literature of agriculture to the interested user who,
 in many cases, could not access it by any other means.  The
 bibliographies are derived from computerized on-line searches of
 the AGRICOLA data base.  Timeliness of topic and evidence of
 extensive interest are the selection criteria.
 
 The author/searcher determines the purpose, length, and search
 strategy of the Quick Bibliography.  Information regarding
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 SAMPLE CITATIONS
 
 Citations in this bibliography are from the National
 Agricultural Library's AGRICOLA database.  An explanation of sample
 journal article, book, and audiovisual citations
 appears below.
 
 JOURNAL ARTICLE:  
   Article title.
   Author.  Place of publication:  Publisher.  Journal Title.   
 Date.  Volume (Issue).  Pages.  (NAL Call Number).
 
 Example:    Morrison, S.B.  Denver, Colo.:  American School Food
 Service   Association.  School foodservice journal.  Sept 1987. v.
 41   (8). p.48-50. ill.  (NAL Call No.:  DNAL 389.8.SCH6).
 
 BOOK:  
   Title.
   Author.  Place of publication:  Publisher, date. Information   on
 pagination, indices, or bibliographies.  (NAL Call
   Number).
 
 Example:  
   Exploring careers in dietetics and nutrition.
   Kane, June Kozak.  New York:  Rosen Pub. Group, 1987.
   Includes index.  xii, 133 p.: ill.; 22 cm.  Bibliography:   p.
 126. (NAL Call No.:  DNAL RM218.K36 1987).
 
 AUDIOVISUAL:  
   Title.
   Author.  Place of publication:  Publisher, date.
   Supplemental information such as funding.  Media format
   (i.e., videocassette):  Description (sound, color, size).   (NAL
 Call Number).
 
 Example:    All aboard the nutri-train.
   Mayo, Cynthia.  Richmond, Va.:  Richmond Public Schools,   1981. 
 NET funded.  Activity packet prepared by Cynthia
   Mayo.  1 videocassette (30 min.): sd., col.; 3/4 in. +
   activity packet. (NAL Call No.: DNAL FNCTX364.A425 F & N AV).
        BREEDING AND SELECTING CROPS FOR INSECT PEST RESISTANCE      
                   Search Strategy
 
 Set            Items     Description
 
 S1             87215     SH=F200
 S2             56337     SH=F821
 S3              2288     SH=F200 AND SH=F821
 S4             31908     RESISTAN?
 S5              1750     S3 AND RESISTAN?
 S6              2461     REGISTRATION
 S7              1695     S5 NOT REGISTRATION
 S8            194937     CROP?
 S9             14747     CORN
 S10            16717     MAIZE
 S11            17834     SOYBEAN?
 S12            31299     WHEAT
 S13            11237     CEREAL?
 S14            20777     GRAIN?
 S15             7596     SORGHUM?
 S16             1628     MILLET?
 S17             2743     OATS
 S18             9705     VEGETABLES
 S19             1596     SUGARBEETS
 S20            15412     COTTON
 S21              795     S7 AND (CROP? OR CORN OR MAIZE OR
                          SOYBEAN? OR WHEAT OR CEREAL? OR
                          GRAIN? OR SORGHUM? OR MILLET? OR OATS    
                      OR VEGETABLES OR SUGARBEETS OR
                          COTTON)
 S22             7617     ALFALFA
 S23             4386     SUNFLOWER?
 S24             3903     PEANUT?
 S25             2817     PEAS
 S26             5705     BEANS
 S27               79     S7 AND (ALFALFA OR SUNFLOWER? OR
                          PEANUT OR PEAS OR BEANS)
 S28              865     S21 OR S27
 S29              857     S28 NOT FRUIT?
 S30              778     S29/ENG
 S31              507     S30 AND UD=8601:9999
 S32              507     S31/TI,DE
 
 1                           NAL Call. No.: aS21.R44A7
 1983 virus tolerance ratings of maize genotypes grown in
 Missouri.
 Wallin, J.R.; Darrah, L.L.
 Beltsville, Md. : The Service; 1985 Sep.
 ARS - United States Department of Agriculture, Agricultural
 Research Service
 (34): 8 p.; 1985 Sep.
 
 Language:  English
 
 Descriptors: Missouri; Zea mays; Genotypes; Disease resistance;
 Maize dwarf mosaic virus; Maize chlorotic dwarf virus; Inbred
 lines; Insect pests; Disease vectors
 
 
 2                             NAL Call. No.: 421 J822
 Adult sorghum midge (Diptera: Cecidomyiidae) nonpreference for a
 resistant
 hybrid sorghum.
 Waquil, J.M.; Teetes, G.L.; Peterson, G.C.
 College Park, Md. : Entomological Society of America; 1986 Apr.
 Journal of economic entomology v. 79 (2): p. 455-458; 1986 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Texas; Sorghum bicolor; Hybrids; Pest resistance;
 Contarinia sorghicola; Host parasite relationships; Oviposition
 
 
 3                     NAL Call. No.:  SB608.M2I57 1987
 Advances in rearing the European corn borer on a Meridic diet.
 Guthrie, W.D.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 46-59.
 ill., maps; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding programs; Resistance; Insect pests;
 Ostrinia nubilalis; Mass rearing; Techniques; Synthetic diets
 
 
 4                           NAL Call. No.: QH442.G445
 Agracetus genetically engineers cotton.
 Fort Lee, N.J. : Technical Insights, Inc; 1987 Jan.
 Genetic technology news v. 7 (1): p. 2; 1987 Jan.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Bacillus thuringiensis; Genetic
 engineering; Pest resistance
 
 
 5                                          NAL Call. No.: 6 W55
 Alfalfa fights back: wild and hairy strains courted.
 Hodgson, P.; Posler, G.L.
 Madison, Wis. : American Society of Agronomy; 1986 Nov.
 Crops and soils magazine v. 39 (2): p. 5-6. ill; 1986 Nov.
 
 Language:  English
 
 Descriptors: Medicago sativa; Trichomes; Hymenoptera; Pest
 resistance; Stickiness; Germplasm releases; Pest control
 
 
 6                             NAL Call. No.: 421 J822
 Analysis of resistance in cabbage varieties to damage by
 Lepidoptera and
 Thysanoptera.
 Shelton, A.M.; Hoy, C.W.; North, R.C.; Dickson, M.H.; Barnard, J.
 College Park, Md. : Entomological Society of America; 1988 Apr.
 Journal of economic entomology v. 81 (2): p. 634-640; 1988 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: New York; Brassica oleracea var. capitata;
 Varieties; Crop damage; Pest resistance; Artogeia rapae; Plutella
 xylostella; Thrips tabaci; Trichoplusia ni; Population density;
 Regression analysis
 
 
 7                             NAL Call. No.: 421 J822
 Antibiosis effect of sorghum on the convergent lady beetle
 (Coleoptera: Coccinellidae), a third-trophic level predator of the
 greenbug (Homoptera:  Aphididae).
 Rice, M.E.; Wilde, G.E.
 Lanham, Md. : Entomological Society of America; 1989 Apr.
 Journal of economic entomology v. 82 (2): p. 570-573; 1989 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Hybrids; Pest resistance;
 Schizaphis graminum; Hippodamia convergens; Host parasite
 relationships; Pest control; Greenhouse experimentation
 
 Abstract:  The effects of a tri-trophic level (grain sorghum-
 greenbug-coccinellid) interaction were examined in the laboratory
 using greenhouse-grown plants. Two resistant sorghum, Sorghum
 bicolor (L.) Moench, hybrids, Dekalb DK-41Y and DK-59E, which
 exhibit antibiosis to greenbugs, Schizaphis graminum (Rondani),
 were tested along with a greenbug-susceptible hybrid, Horizon 101G.
 Single egg clusters from Hippodamia convergens Guerin females were
 randomly separated at hatching into two groups. Each group was fed
 greenbugs from either a resistant or susceptible grain sorghum
 hybrid. Plant antibiosis reduced larval-pupal survival and
 increased the amount of time from egg eclosion to pupation in
 coccinellids that fed on greenbugs from both of the resistant
 hybrids compared with the susceptible hybrid. Survival to adulthood
 was 82.9% in the 101G-susceptible treatment and 62.1% for larvae
 fed greenbugs from resistant KD-41Y. Survival was 91.6% in the
 susceptible 101G treatment and 86.5% in the resistant DK-59E
 treatment. Resistant sorghum hybrid DK-59E had a significant
 treatment-by-sex interaction effect on coccinellid adult weights,
 with females that consumed greenbugs from the resistant hybrid
 weighing less, whereas males weighed more when compared with the
 respective sexes feeding on greenbugs from the susceptible sorghum
 hybrid.
 
 
 8                            NAL Call. No.: QL461.I57
 Antibiosis mechanism of resistance to stem borer, Chilo partellus
 (Swinhoe) in
 sorghum.
 Singh, S.P.; Verma, A.N.
 Oxford : Pergamon Press; 1988.
 Insect science and its application v. 9 (5): p. 579-582; 1988. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Haryana; Sorghum bicolor; Genotypes; Chilo
 partellus; Larvae; Plant pests; Pest resistance; Antibiotics; Life
 cycles; Growth; Mortality
 
 
 9                             NAL Call. No.: 420 IN23
 Antibiotic effects of cotton genotypes on Jassid, Amrasca
 devastans (Distant).
 Bhat, M.G.; Joshi, A.B.; Singh, M.
 New Delhi : Entomological Society of India; 1985 Mar.
 Indian journal of entomology v. 47 (pt.1): p. 1-5; 1985 Mar. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Gossypium arboreum; Genotypes;
 Pest resistance; Amrasca devastans; Antibiotics
 
 
 10                    NAL Call. No.:  SB608.M2I57 1987
 Approaches in the U.S. Corn Belt for the management of maize
 insects with
 resistant cultivars.
 Peters, D.C.; Turpin, F.T.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 253-256; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Corn belt of U.S.A.; Zea mays; Cultivars;
 Resistance; Insect pests; Pest management; Insect control;
 Control methods; Yield losses; Prevention; Yield increases
 
 
 11                      NAL Call. No.:  SB123.A88 1988
 Approaches to insect resistance screening in grain legumes. Rogers,
 D.J.; Brier, H.B.
 Wagga Wagga, N.S.W., Australia : Organising Committee,
 Agricultural Research
 Institute, 1988? :.; 1988.
 Ninth Australian Plant Breeding Conference, Wagga Wagga, 27th
 June-1st July, 1988 / [edited by K.S. McWhirter, R.W. Downes, B.J.
 Read]. p. 247-248; 1988.
 
 Language:  English
 
 Descriptors: Pulses; Pest resistance; Screening tests
 
 
 12                            NAL Call. No.: 80 F9464
 Arthropod resistance in plant introduction accessions of Malus sp.
 to some
 arthropod pests of economic importance.
 Goonewardene, H.F.; Povish, W.R.
 University Park, Pa. : American Pomological Society; 1988 Jul.
 Fruit varieties journal v. 42 (3): p. 88-91; 1988 Jul.  Includes
 references.
 
 Language:  English
 
 Descriptors: Malus; Cultivars; Plant breeding; Pest resistance;
 Resistance to injurious factors; Arthropod pests
 
 
 13                            NAL Call. No.: 421 J822
 Association of an endophytic fungus in perennial ryegrass and
 resistance to
 the hairy chinch bug (Hemiptera: Lygaeidae).
 Mathias, J.K.; Ratcliffe, R.H.; Hellman, J.L.
 Lanham, Md. : Entomological Society of America; 1990 Aug.
 Journal of economic entomology v. 83 (4): p. 1640-1646; 1990 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Lolium perenne; Cultivars; Crop damage; Pest
 resistance; Blissus leucopterus; Larvae; Survival; Acremonium;
 Interactions
 
 Abstract:  Laboratory tests demonstrated that 'Repell,' a
 cultivar of perennial ryegrass, Lolium perenne L., infected with
 the fungal endophyte, Acremonium lolii Latch, Christensen &
 Samuels, exhibited a high level of insect resistance to the hairy
 chinch bug, Blissus leucopterus hirtus Montandon. First and third
 instars and adult hairy chinch bugs reared on endophyte-infected
 plants had significantly lower survival. On endophyte-free
 'Repell,' nymphs and adults resided primarily on the leaf sheath.
 In contrast, on endophyte-infected 'Repell,' nymphs and adults
 either avoided the plant or resided only on the endophyte-free leaf
 blade. Nymphs were able to detect the presence of the
 endophyte in a choice test and consistently selected endophyte-free
 'Repell.' These results support field observations of
 resistance in association with endophyte-infected ryegrass and
 suggest that the incorporation of endophytes into ryegrass will
 lead to significant reductions in hairy chinch bug infestations.
 
 
 14                       NAL Call. No.:  aS21.A8U5/ARS
 Attraction of stem infesting insects to sunflower and
 implications for
 host--plant resistance.
 Brewer, G.J.; Charlet, L.D.
 Washington, D.C. : The Service; 1990.
 Reprints - U.S. Department of Agriculture, Agricultural Research
 Service
 [355]: p. 16-22; 1990.  Includes references.
 
 Language:  English
 
 Descriptors: North Dakota; Helianthus; Hybrids; Lines; Pest
 resistance; Curculionidae; Cylindrocopturus adspersus; Zygogramma
 
 
 15                            NAL Call. No.: 421 J822
 Behavioral and physiological responses of Sogatella furcifera
 (Homoptera: Delphacidae) to selected resistant and susceptible rice
 cultivars.
 Khan, Z.R.; Saxena, R.C.
 College Park, Md. : Entomological Society of America; 1985 Dec.
 Journal of economic entomology v. 78 (6): p. 1280-1286. maps; 1985
 Dec.
 Includes references.
 
 Language:  English
 
 Descriptors: Asia; Pacific Islands; Oryza sativa; Cultivars; Pest
 resistance; Sogatella furcifera; Behavior; Physiology; Crop
 sensitivity
 
 
 16                           NAL Call. No.: QH540.E32
 Behavioral reactions of cereal aphids fed on corn of varying
 resistance.
 Vereshchagina, A.B.; Gandrabur, S.I.
 New York, N.Y. : Consultants Bureau; 1988 Nov.
 The Soviet journal of ecology v. 19 (2): p. 98-101; 1988 Nov. 
 Translated
 from: Ekologiia, (2), 1988, p. 35-39. (QH540.E3).  Includes
 references.
 
 Language:  English; Russian
 
 Descriptors: Zea mays; Rhopalosiphum maidis; Rhopalosiphum padi;
 Pest resistance; Varieties; Varietal susceptibility; Feeding
 behavior; Population density
 
 
 17                           NAL Call. No.: 421 EN895
 Behavioral responses of female adult Trichoplusia ni to volatiles
 from
 soybeans versus a preferred host, lima bean.
 Liu, S.H.; Norris, D.M.; Marti, E.
 Dordrecht : Kluwer Academic Publishers; 1988 Nov.
 Entomologia experimentalis et applicata v. 49 (1/2): p. 99-109;
 1988 Nov.
 Includes references.
 
 Language:  English
 
 Descriptors: Glycine max; Phaseolus lunatus; Cultivars; Pest
 resistance; Volatile compounds; Chemical composition;
 Trichoplusia ni; Animal behavior; Responses; Insect attractants;
 Insect repellents; Insect traps
 
  18                            NAL Call. No.: SB599.C8
 Bemisia tabaci (Homoptera: Aleyrodidae): populations on different
 cotton
 varieties and cotton stickiness in Israel.
 Butler, G.D. Jr; Rimon, D.; Henneberry, T.J.
 Guildford, Eng. : Butterworths; 1988 Feb.
 Crop protection v. 7 (1): p. 43-47; 1988 Feb.  Includes
 references.
 
 Language:  English
 
 Descriptors: Israel; Gossypium hirsutum; Cultivars; Pest
 resistance; Bemisia tabaci; Dry farming; Irrigated farming
 
 
 19                                        NAL Call. No.: A00033 Big
 success in gene-engineered cotton.
 San Francisco, Calif. : Deborah J. Mysiewicz; 1990 Oct31.
 BioEngineering news v. 11 (44): p. 4-5; 1990 Oct31.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Bacillus thuringiensis; Pest
 resistance; Lepidoptera; Usda; Field tests
 
 
 20                           NAL Call. No.: 421 EN895
 Biochemical basis of winter wheat resistance to the grain aphid,
 Sitobion
 avenae.
 Ciepiela, A.
 Dordrecht : Kluwer Academic Publishers; 1989 Jul.
 Entomologia experimentalis et applicata v. 51 (3): p. 269-275; 1989
 Jul.
 Includes references.
 
 Language:  English
 
 Descriptors: Poland; Triticum; Winter wheat; Cultivars; Free amino
 acids; Protein content; Pest resistance; Sitobion avenae
 
 
 21                    NAL Call. No.:  SB608.M2I57 1987
 Biochemical methodologies and approaches for determining the basis
 of maize
 resistance to insects.
 Reese, J.C.; Waiss, A.C. Jr; Legacion, D.M. Mexico, D.F., Mexico :
 International Maize and Wheat Improvement Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 244-252; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Resistance; Insect pests; Resistance
 mechanisms; Biochemistry; Techniques; Allelochemicals;
 Antibiosis; Genotypes; Bioassays
 
 
 22                            NAL Call. No.: 421 J822
 Biological effects of developing sorghum panicles in a meridic diet
 on fall
 armyworm (Lepidoptera: Noctuidae) development.
 Wiseman, B.R.; Pitre, H.N.; Fales, S.L.; Duncan, R.R.
 College Park, Md. : Entomological Society of America; 1986 Dec.
 Journal of economic entomology v. 79 (6): p. 1637-1640; 1986 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Georgia; Sorghum bicolor; Genotypes; Spodoptera
 frugiperda; Pest resistance; Panicles; Tannins; Developmental
 stages; Larvae; Development
 
 
 23                             NAL Call. No.: 421 C16
 Biology of Telenomus chloropus (Hymenoptera: Scelionidae) from eggs
 of Nezara
 viridula (Hemiptera: Pentatomidae) reared on resistant and
 susceptible soybean
 genotypes.
 Orr, D.B.; Boethel, D.J.; Jones, W.A.
 Ottawa : Entomological Society of Canada; 1985 Sep.
 The Canadian entomologist v. 117 (9): p. 1137-1142; 1985 Sep. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Genotypes; Pest resistance;
 Susceptibility; Nezara viridula; Parasites of insect pests;
 Telenomus; Ova
 
 
 24                            NAL Call. No.: 421 J822
 Blister beetles on glandless cotton.
 Maxwell, F.G.; Lafever, H.N.; Jenkins, J.N.
 Lanham, Md. : Entomological Society of America; 1965 Aug.
 Journal of economic entomology v. 58 (4): p. 792-793. ill; 1965
 Aug.  Includes
 references.
 
 Language:  English
 
 Descriptors: Mississippi; Gossypium; Lines; Plant glands;
 Susceptibility; Varietal resistance; Anthonomus grandis; Insect
 pests
 
 
 25                            NAL Call. No.: 421 J822
 Boll weevil (Coleoptera: Curculionidae) nonpreference for
 primitive cotton.
 McCarty, J.C. Jr; Jones, J.E.
 Lanham, Md. : Entomological Society of America; 1989 Feb.
 Journal of economic entomology v. 82 (1): p. 298-300; 1989 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Louisiana; Gossypium hirsutum; Cultivars; Crop damage;
 Anthonomus grandis; Oviposition; Field tests; Laboratory tests
 
 Abstract:  Oviposition resistance-nonpreference of boll weevils,
 Anthonomus grandis grandis Boheman, was measured on day-neutral
 (flowering response not sensitive to day-length) lines of
 primitive cotton, Gossypium hirsutum L. Six of nine lines
 (T-109DN, T-277-2-6DN, T-330DN, T-759DN, T-763DN, and T-790DN) had
 significantly less boll weevil oviposition and significantly fewer
 boll weevil-damaged squares than the susceptible checks,
 'Stoneville 213,' and 'Deltapine 41,' or 'Deltapine 61' in both
 laboratory and field tests. The level of field resistance in these
 primitive cottons approximated that of the frego-
 nectariless resistant check, La.81-560FN. These primitive day-
 neutral-derived lines represent an important level and a
 previously unexploited source of resistance that can be used
 readily for germplasm enhancement of upland cotton. Their
 resistance was not attributed to any morphological trait.
 
 
 26                           NAL Call. No.: 64.8 C883
 A boll weevil oviposition suppression factor in cotton.
 Buford, W.T.; Jenkins, J.N.; Maxwell, F.G.
 Madison, Wis. : Crop Science Society of America; 1968 Nov.
 Crop science v. 8 (6): p. 647-649; 1968 Nov.  Includes
 references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Gossypium barbadense; Pest
 resistance; Anthonomus grandis; Oviposition
 
 
 27                            NAL Call. No.: 100 L936
 Bollworm-tobacco budworm resistant cotton.
 Calhoun, D.S.; Dickson, J.I.; Jones, J.E.; Leonard, B.R.; Burris,
 E.; Caldwell, W.D.; Moore, S.H.; Aguillard, W.
 Baton Rouge, La. : The Department; 1990.
 Report of projects - Louisiana Agricultural Experiment Station,
 Department of
 Agronomy. p. 1-10; 1990.
 
 Language:  English
 
 Descriptors: Louisiana; Gossypium; Strain; Testing; Resistance;
 Helicoverpa; Zea; Heliothis virescens
 
 
 28                           NAL Call. No.: aZ5071.N3
 Breeding and selecting crops for insect pest resistance January
 1983-March
 1989.
 MacLean, J.T.
 Beltsville, Md. : The Library; 1989 Jun.
 Quick bibliography series - U.S. Department of Agriculure,
 National
 Agricultural Library (U.S.). (89-75): 30 p.; 1989 Jun.  Updates QB
 88-21.
 Bibliography.
 
 Language:  English
 
 Descriptors: Plant breeding; Insect pests; Pest resistance;
 Bibliographies
 
 
 29                          NAL Call. No.: SB327.A1B5
 Breeding beans resistant to bruchids.
 Harmsen, R.; Bliss, F.A.; Osborn, T.C.
 Geneva, N.Y. : Bean Improvement Cooperative; 1987.
 Annual report of the Bean Improvement Cooperative v. 30: p. 44-45;
 1987.
 Includes references.
 
 Language:  English
 
 Descriptors: Phaseolus vulgaris; Breeding aims; Resistance;
 Acanthoscelides obtectus; Zabrotes subfasciatus; Hybridization;
 Wild plants; Breeding methods
 
 
 30                           NAL Call. No.: aZ5071.N3
 Breeding crops for insect pest resistance, 1979-1987.
 MacLean, J.T.
 Beltsville, Md. : The Library; 1988 Feb.
 Quick bibliography series - National Agricultural Library (U.S.).
 (88-21): 28
 p.; 1988 Feb.  Bibliography.
 
 Language:  English
 
 Descriptors: Plant breeding; Insect pests; Pest resistance
 
 
 31                           NAL Call. No.: QL461.I57
 Breeding for host plant resistance to maize stem-borers.
 Mihm, J.A.
 Oxford, Eng. : Pergamon Press; 1985.
 Insect science and its application v. 6 (3): p. 369-377. ill; 1985. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Insect pests; Pest resistance; Selective
 breeding; Plant breeding
 
 
 32                           NAL Call. No.: SB123.P55 Breeding for
 insect resistance in maize.
 Guthrie, W.D.
 Portland, Or. : Timber Press; 1989.
 Plant breeding reviews v. 6: p. 209-243; 1989.  Literature
 review.  Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding aims; Pest resistance; Insect
 pests; Breeding programs; Breeding methods; Genetics; Greenhouse
 experimentation; Plant damage; Laboratory rearing
 
 
 33                    NAL Call. No.:  SB608.M2I57 1987
 Breeding for multiple resistance to temperate, subtropical, and
 tropical maize
 insect pests at CIMMYT.
 Smith, M.E.; Mihm, J.A.; Jewell, D.C.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 222-234; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Mexico; Zea mays; Breeding programs; Selection
 criteria; Resistance; Insect pests; Temperate Zones; Subtropics;
 Tropical Zones; Resistance mechanisms; Inheritance; Breeding
 methods; Germplasm releases; International cooperation; Testing;
 Evaluation; Varieties; Hybrids
 
 
 34                    NAL Call. No.:  SB608.M2I57 1987
 Breeding for resistance in maize to southwestern corn borer and
 fall armyworm.
 Williams, W.P.; Davis, F.M.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 207-210; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Mississippi; Zea mays; Plant breeding; Selection
 criteria; Resistance; Diatraea grandiosella; Spodoptera
 frugiperda; Breeding methods
 
 
 35                    NAL Call. No.:  SB608.M2I57 1987
 Breeding for resistance to European corn borer.
 Gracen, V.E.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 203-206; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: New York; Zea mays; Breeding methods; Selection;
 Techniques; Resistance; Ostrinia nubilalis; Diatraea; Species;
 Disease resistance; Colletotrichum graminicola
 
 
 36                           NAL Call. No.: QL461.I57
 Breeding for resistance to shootfly and stem-borer in sorghum.
 Kishore, P.
 Oxford, Eng. : Pergamon Press; 1986.
 Insect science and its application v. 7 (1): p. 117-121; 1986. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum; Chilo partellus; Atherigona soccata; Pest
 resistance; Plant breeding
 
 
 37                          NAL Call. No.: SB933.3.I5 Breeding for
 resistance to whiteflies in tomatoes--in relation to
 integrated
 pest control in greenhouses.
 Berlinger, M.J.; Dahan, R.; Shevach-urkin, E.
 Wageningen : The Section; 1983.
 Bulletin SROP - International Organization for Biological Control
 of Noxious
 Animals and Plants, West Palaearctic Regional Section v. 6 (3): p.
 172-176; 1983.  In the series analytic: Working group,
 Integrated control in
 glasshouses = Groupe de travail lutte integree en cultures sous
 verre / edited
 by N.W. Hussey.  Includes references.
 
 Language:  English
 
 Descriptors: Greenhouse crops; Lycopersicon esculentum; Breeding
 aims; Resistance; Insect pests; Trialeurodes vaporariorum;
 Integrated pest management; Breeding methods
 
 
 38                    NAL Call. No.:  SB608.M2I57 1987
 Breeding methodologies and genetic basis of resistance in maize to
 the
 European corn borer.
 Guthrie, W.D.; Russell, W.A.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 192-202; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Plant breeding; Genetic control;
 Resistance; Ostrinia nubilalis; Breeding methods
 
 
 39                            NAL Call. No.: 34.2 AN4
 Breeding methodologies for disease and pest resistance in
 groundnut [Arachis
 hypogaea L.].
 Reddi, M.V.
 Bapatla : Andhra Agricultural Union; 1984 Jul. The Andhra
 agricultural journal v. 31 (3): p. 173-183; 1984 Jul.  Includes
 references.
 
 Language:  English
 
 Descriptors: Andhra pradesh; Arachis hypogaea; Cultivars; Plant
 breeding; Disease resistance; Pest resistance; Crop yield;
 Ecological balance
 
 
 40                    NAL Call. No.:  SB608.M2I57 1987
 Breeding methodology to increase resistance in maize to corn
 earworm, fall
 armyworm, and maize weevil.
 Widstrom, N.W.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 211-221; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding methods; Selection criteria;
 Resistance; Helicoverpa zea; Spodoptera frugiperda; Sitophilus
 zeamais; General combining ability; Specific combining ability
 
 
 41                           NAL Call. No.: QL461.I57
 Breeding sorghum for resistance to insects in eastern Africa.
 Gebrekidan, B.
 Oxford, Eng. : Pergamon Press; 1985.
 Insect science and its application v. 6 (3): p. 351-357; 1985. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Africa; Sorghum bicolor; Atherigona soccata; Stored
 products pests; Pest resistance; Plant breeding
 
 
 42                            NAL Call. No.: SB183.F5
 Breeding upland cotton for resistance to the tarnished plant bug.
 Milam, M.R.; Jenkins, J.N.; McCarty, J.C. Jr; Parrott, W.L.
 Amsterdam : Elsevier Scientific Publishing Company; 1989 Jul15.
 Field crops research v. 21 (3/4): p. 227-238; 1989 Jul15. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Strains; Resistance; Lygus
 lineolaris; Genetic control; Progeny; Selection; Yield losses
 
 
 43                           NAL Call. No.: 64.8 C883
 Changes in agronomic traits associated with recurrent selection in
 two maize
 synthetics.
 Nyhus, K.A.; Russell, W.A.; Guthrie, W.D.
 Madison, Wis. : Crop Science Society of America; 1989 Mar.
 Crop science v. 29 (2): p. 269-275; 1989 Mar.  Includes
 references.
 
 Language:  English
 
 Descriptors: Iowa; Zea mays; Recurrent selection; Synthetic
 varieties; Pest resistance; Ostrinia nubilalis; Diplodia maydis;
 Disease resistance; Crosses; Crop yield; Grain; Yield losses; Yield
 components; Ears (plant); Pollen; Inbreeding depression
 
 Abstract:  The agronomic performance of two maize (Zea mays L.)
 synthetics, BSAA and BSBB, was investigated following four cycles
 of S1 recurrent selection for resistance to first-generation
 European corn borer (Ostrinia nubilalis Hubner) (ECB) and
 Diplodia (Diplodia maydis (Berk.) Sacc.) stalk rot (DSR). The
 original and four improved cycle populations (C0-C4), their crosses
 to a single-cross tester, crosses between synthetics, and three
 single-cross checks were evaluated in five Iowa
 environments. Artificial infestations of ECB and inoculations of D.
 maydis were used to assess the ability of genetic resistance to
 reduce yield losses. Highly significant grain yield reductions were
 observed in both synthetics per se and averaged 20% from the C0 to
 the C4 in the absence of disease or insects pressure. Ear length
 was the main component contributing to grain yield
 reductions. Changes toward earlier pollen date were closely
 associated with reductions in plant height observed in both
 synthetics. The level of resistance achieved in the improved
 populations of BSBB was sufficient to prevent grain yield losses
 caused by ECB infestations and D. maydis inoculations relative to
 a control treatment. Additional genetic studies suggested that the
 response of most of the agronomic traits evaluated was
 associated with allelic frequency changes resulting from
 selection. Inbreeding depression caused by random genetic drift
 played a small role in most traits, with the exception of grain
 yield in BSBB.
 
 
 44                           NAL Call. No.: QL461.I57
 Chilo partellus (Swinhoe) oviposition on susceptible and
 resistant maize
 genotypes.
 Ampofo, J.K.O.
 Oxford, Eng. : Pergamon Press; 1985.
 Insect science and its application v. 6 (3): p. 323-330. ill; 1985. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Chilo partellus; Pest resistance;
 Genotypes; Trichomes; Oviposition; Exudates
 
 
 45                          NAL Call. No.: QL461.E532
 Chinch-bug (Heteroptera: Lygaeidae) reproduction, development, and
 feeding
 preference on various wheat cultivars and genetics sources. Stuart,
 J.; Wilde, G.; Hatchett, J.H.
 College Park, Md. : Entomological Society of America; 1985 Aug.
 Environmental entomology v. 14 (4): p. 539-543; 1985 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Cultivars; Pest resistance; Blissus
 leucopterus; Feeding habits; Reproduction; Longevity; Mortality
 
 
 46                          NAL Call. No.: QH431.G452
 Chromosomal location in common wheat of a gene (Cmc1) from
 Aegilops squarrosa
 that conditions resistance to colonization by the wheat curl mite.
 Whelan, E.D.P.; Thomas, J.B.
 Ottawa : National Research Council of Canada; 1989 Dec.
 Genome v. 32 (6): p. 1033-1036; 1989 Dec.  Includes references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Genes; Wheat streak mosaic virus;
 Eriophyes; Pest resistance; Chromosomes; Disease vectors;
 Aegilops squarrosa
 
 
 47                           NAL Call. No.: 442.8 AM3
 Chromosomal mapping of Hessian fly-resistance gene H13 in the D
 genome of
 wheat.
 Gill, B.S.; Hatchett, J.H.; Raupp, W.J.
 Washington, D.C. : American Genetic Association; 1987 Mar.
 The Journal of heredity v. 78 (2): p. 97-100. ill; 1987 Mar. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Mayetiola destructor; Pest
 resistance; Aegilops squarrosa; Chromosome maps; Gene location;
 Gene mapping; Genome analysis; Telocentrics
 
 
 48                           NAL Call. No.: 64.8 C883
 Combining ability for resistance in corn to fall armyworm and
 southwestern
 corn borer.
 Williams, W.P.; Buckley, P.M.; Davis, F.M.
 Madison, Wis. : Crop Science Society of America; 1989 Jul.
 Crop science v. 29 (4): p. 913-915; 1989 Jul.  Includes
 references.
 
 Language:  English
 
 Descriptors: Mississippi; Zea mays; Inbred lines; Pest
 resistance; Larvae; Spodoptera frugiperda; Diatraea grandiosella;
 Inheritance of acquired characters; Line crosses; General
 combining ability; Specific combining ability; Diallel crossing;
 Hybrids; Genetic variation
 
 Abstract:  Both the fall armyworm, Spodoptera frugiperda (J.E.
 Smith), and the southwestern corn borer, Diatraea grandiosella
 Dyar, feed extensively on the leaves of corn, Zea mays L., in the
 southern USA. Their feeding can cause serious yield reductions.
 Several germplasm lines with resistance to leaf feeding by these
 two insect pests have been developed and released; however, only
 limited information is available on the inheritance of this
 resistance. No previous information on the relationships between
 resistance to fall armyworm and southwestern corn borer has been
 reported. The current investigation was undertaken to obtain
 information on the relative importance of general and specific
 combining ability in the inheritance of resistance to fall
 armyworms and southwestern corn borers and to compare the
 responses of the two insects to a diallel cross among inbred lines
 with varying degrees of resistance. Larval survival and growth were
 used to quantify levels of resistance. General
 combining ability was a highly significant source of variation
 among hybrids, but specific combining ability was a
 nonsignificant source of variation. Fall armyworm larval survival
 and weight on hybrids with varying levels of resistance were highly
 correlated with southwestern corn borer survival and weight on the
 same hybrids. This suggests that selecting for resistance to one of
 these insects should increase resistance to both.
 
 
 49                           NAL Call. No.: QL461.I57
 Combining ability for stem borer, Chilo partellus (Swinhoe)
 resistance in
 sorghum.
 Singh, S.P.; Verma, A.N.
 Oxford : Pergamon Press; 1988. Insect science and its application
 v. 9 (5): p. 665-668; 1988.  Includes
 references.
 
 Language:  English
 
 Descriptors: Haryana; Sorghum bicolor; Genotypes; Chilo
 partellus; Pest resistance; Crosses; Combining ability; Plant
 damage; Genes; Plant breeding; Genetic control; Inheritance
 
 
 50                           NAL Call. No.: 421 EN895
 Comparative constitutive resistance in soybean lines to Mexican
 bean beetle.
 Chiang, H.S.; Norris, D.M.; Ciepiela, A.; Oosterwyk, A.; Shapiro,
 P.; Jackson, M.
 Dordrecht : Dr W. Junk Publishers; 1986 Sep.
 Entomologia experimentalis et applicata v. 42 (1): p. 19-26; 1986
 Sep.
 Includes references.
 
 Language:  English
 
 Descriptors: Glycine max; Antifeedants; Pest resistance;
 Varieties; Epilachna varivestis
 
 
 51                          NAL Call. No.: QL461.E532
 Comparative development of Copidosoma truncatellum (Hymenoptera:
 Encyrtidae)
 and its host, Pseudoplusia includens (Lepidoptera: Noctuidae), on
 resistant
 and susceptible soybean genotypes.
 Orr, D.B.; Boethel, D.J.
 College Park, Md. : Entomological Society of America; 1985 Oct.
 Environmental entomology v. 14 (5): p. 612-613; 1985 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Pest resistance; Genotypes;
 Pseudoplusia includens; Parasites of insect pests; Copidosoma
 truncatellum; Development
 
 
 52                            NAL Call. No.: 421 J822 The
 comparative preference of insects for glanded and glandless
 cottons.
 Jenkins, J.N.; Maxwell, F.G.; Lafever, H.N.
 Lanham, Md. : Entomological Society of America; 1966 Apr.
 Journal of economic entomology v. 59 (2): p. 352-256; 1966 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Mississippi; Gossypium; Lines; Plant glands; Pest
 resistance; Crop damage; Feeding preferences; Helicoverpa zea;
 Alabama argillacea; Chrysomelidae; Colaspis; Incidence
 
 
 53                            NAL Call. No.: 421 J822
 Comparison of bermudagrass lines grown in different cultural
 conditions and
 the effect on screening for fall armyworm (Lepidoptera: 
 Noctuidae) resistance.
 Jamjanya, T.; Quisenberry, S.S.; Croughan, S.S.; Story, R.N.
 Lanham, Md. : Entomological Society of America; 1990 Apr.
 Journal of economic entomology v. 83 (2): p. 585-590; 1990 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Louisiana; Cynodon dactylon; Lines; Mortality; Pest
 resistance; Screening; Spodoptera frugiperda; Development; Field
 experimentation; Greenhouse experimentation; Survival; Crop
 quality; Crude protein; Growth
 
 Abstract:  A study was conducted to investigate the effects of
 different cultural conditions on the quality of bermudagrass,
 Cynodon dactylon (L.) Pers., and its effect on the development and
 survival of the fall armyworm, Spodoptera frugiperda (J. E. Smith).
 Fall armyworm larvae were fed four bermudagrass lines, 'Coastal',
 'Grazer,' 'Tifton 292,' and OSU 71 x 6-7, grown under field and
 greenhouse conditions. Grasses grown in the field were less
 favorable for fall armyworm development and survival than the same
 lines grown in the greenhouse. Larvae fed bermudagrasses grown in
 the greenhouse had significantly higher larval and pupal weights
 and decreased duration for larval development. The
 quality of field-grown grasses, as indicated by crude protein,
 neutral detergent fiber, and in vitro digestible dry matter, was
 lower and declined more from June to September than the same
 grasses grown in the greenhouse. Larvae fed either greenhouse- or
 field-grown 'Grazer' generally developed faster than larvae reared
 on the other bermudagrass lines we evaluated. 'Tifton 292' appeared
 resistant to fall armyworm when grown under greenhouse but did not
 always differ significantly from the susceptible line, 'Grazer,'
 when grown under field conditions. Greenhouse screening of
 bermudagrass for fall armyworm resistance should be confirmed with
 field evaluations.
 
 
 54                            NAL Call. No.: 421 J822
 Comparison of immature sorghum midge (Diptera: Cecidomyiidae)
 development on
 resistant and susceptible sorghums.
 Waquil, J.M.; Teetes, G.L.; Peterson, G.C.
 College Park, Md. : Entomological Society of America; 1986 Jun.
 Journal of economic entomology v. 79 (3): p. 833-837; 1986 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Texas; Sorghum bicolor; Hybrids; Pest resistance;
 Contarinia sorghicola; Larvae; Pupae; Crop damage
 
 
 55                           NAL Call. No.: 64.8 C883
 Comparison of mite resistance for control of wheat streak mosaic.
 Conner, R.L.; Thomas, J.B.; Whelan, E.D.P.
 Madison, Wis. : Crop Science Society of America; 1991 Mar.
 Crop science v. 31 (2): p. 315-318; 1991 Mar.  Includes
 references.
 
 Language:  English
 
 Descriptors: Aceria tulipae; Triticum aestivum; Secale cereale;
 Elymus elongatus; Aegilops squarrosa; Wheat streak mosaic virus;
 Pest resistance; Genetic resistance; Genes; Substitution lines;
 Addition lines; Translocation lines; Line differences; Cultivars;
 Plant breeding; Plant disease control; Vectors; Feeding behavior
 
 Abstract:  The wheat curl mite (Eriophyes [Aceria] tulipae
 Keifer) is the vector of wheat streak mosaic virus (WSMV), which
 incites wheat streak mosaic (WSM), a disease that causes serious
 yield losses in winter wheat (Triticum aestivum L. em. Thell.).
 Several sources of resistance to mite colonization have been
 identified. Our objective was to determine the relative
 effectiveness of four sources of mite resistance in controlling the
 spread of WSMV. A series of controlled environmental tests showed
 that the incidence of WSMV tended to be lowest in
 'Rescue'-Agropyron elongatum (Host) P. Beauv. chromosome
 substitution, addition, or translocation lines involving
 Chromosome 6 from A. elongatum. Disease incidence was
 significantly lower in the wheat-rye (Secale cereale L.)
 translocation line KS80H4200 and in the 'Norstar'-Aegilops
 squarrosa L. backcross line NST 4/CMC1 than in the mite-
 susceptible wheat cultivars Norstar and Rescue. The incidence of
 WSM was usually higher in the cultivar TAM 107, which carries a
 wheat-rye translocation, than in other mite-resistant entries and
 was not always significantly different from the mite-susceptible
 winter wheat Norstar, even though TAM 107 reduced the incidence of
 symptoms of mite feeding. All entries tested were highly
 susceptible to WSMV when mechanically inoculated. In the field,
 following a light natural infestation of the wheat curl mite, lines
 from the cross NST 4/CMC1 contained 40% fewer WSMV-infected plants
 than lines without mite resistance. This study
 demonstrated that the mite resistance derived from A. elongatum was
 more effective in limiting the spread of WSM than was mite
 resistance originating from either rye or Ae. squarrosa.
 
 
 56                            NAL Call. No.: 421 J822
 Comparison of oilseed Brassica crops with high or low levels of
 glucosinolates
 and alfalfa as hosts for three species of Lygus (Hemiptera:
 Heteroptera:  Miridae).
 Butts, R.A.; Lamb, R.J.
 Lanham, Md. : Entomological Society of America; 1990 Dec.
 Journal of economic entomology v. 83 (6): p. 2258-2262; 1990 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Alberta; Brassica campestris; Brassica napus;
 Cultivars; Pest resistance; Lygus; Lygus elisus; Lygus lineolaris
 
 Abstract:  The suitability of oilseed rapes, Brassica spp., and
 alfalfa, Medicago sativa L., as host plants for Lygus spp. is
 compared. Lygus bugs were monitored in field plots of five
 cultivars of oilseed rape, Brassica napus L. and Brassica
 campestris L., containing high or low levels of glucosinolates. The
 number of lygus collected did not differ among cultivars of the
 same species. Nymphs reared in the laboratory on the five cultivars
 had the same survival and developmental rate regardless of the
 glucosinolate status of the cultivar. Survival,
 development, and growth were compared for nymphs reared on
 excised stem tips of oilseed rape and alfalfa that had flower buds
 or flowers. Nymphs developed faster and had higher survival when
 reared on oilseed rape than when reared on alfalfa. However, the
 dry weights of adults collected from an alfalfa field were
 significantly higher than those reared on alfalfa in the
 laboratory, indicating that excised alfalfa may not be as good a
 source of food for conducting laboratory tests as excised oilseed
 rape. Adult weights of field-collected lygus bugs from alfalfa and
 oilseed rape did not differ significantly. The results
 demonstrate that oilseed rapes with high or low levels of
 glucosinolates are both suitable hosts for the three species of
 lygus, and as suitable as alfalfa. Furthermore, the change from the
 older high-glucosinolate rape cultivars to the low-
 glucosinolate cultivars that are now widely grown probably had no
 effect on the suitability of the crop for lygus bugs.
 
 
 57                          NAL Call. No.: QL461.E532
 A comparison of plant parameters and soluble carbohydrates of
 resistanta and
 susceptible wheat infested with biotype E Hessian flies (Diptera:
 Cecidomyiidae).
 Wellso, S.G.; Hoxie, R.P.; Taylor, P.L.
 Lanham, Md. : Entomological Society of America; 1990 Dec.
 Environmental entomology v. 19 (6): p. 1698-1701; 1990 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Mayetiola destructor; Pest
 resistance; Carbohydrates
 
 Abstract:  Experiments were conducted to determine the effect of
 Hessian fly, Mayetiola destructor (Say), larval feeding on one
 susceptible and two resistant wheat, Triticum aestivum L. em
 Thell., cultivars. The stem number, plant and crown weights, and
 soluble crown carbohydrates were measured in susceptible 'Monon'
 (with the H3 gene) and resistant 'Abe' (H3 gene) and 'Caldwell' (H6
 gene) wheat infested with biotype E Hessian fly larvae. All plant
 variables were significantly different between infested and control
 'Monon' wheat, and no significant difference in plant variables was
 detected in the resistant wheats 4 wk after
 infestation. Of the four carbohydrates analyzed, only fructan in
 'Monon,' and fructose in 'Abe' differed significantly between the
 two treatments. These data support the use of resistant genes in
 plants to control the Hessian fly, in that essentially no damage
 was observed in the resistant wheat, whereas susceptible 'Monon'
 was damaged severely.
 
 
 58                          NAL Call. No.: QL461.E532
 Comparison of pod-wall characteristics with seed damage and
 resistance to the
 alfalfa seed chalcid (Hymenoptera: Eurytomidae) in Medicago
 species.
 Springer, T.L.; Kindler, S.D.; Sorensen, E.L.
 Lanham, Md. : Entomological Society of America; 1990 Oct.
 Environmental entomology v. 19 (5): p. 1614-1617; 1990 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Oklahoma; Medicago sativa; Seeds; Bruchophagus roddi;
 Pest resistance; Interspecific hybridization
 
 
 59                            NAL Call. No.: 421 J822
 Comparison of swellings caused by indoleacetic acid and
 tuberosities induced
 by grape phylloxera (Homoptera: Phylloxeridae).
 Granett, J.
 Lanham, Md. : Entomological Society of America; 1990 Apr.
 Journal of economic entomology v. 83 (2): p. 494-499; 1990 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Vitis vinifera; Biotypes; Cultivars; Hybrids; Pest
 resistance; Susceptibility; Swelling; Iaa; Crop damage; Hemiptera
 
 Abstract:  Indoleacetic acid applied to root pieces of grade
 cultivars resistant and susceptible to grape phylloxera,
 Daktulosphaira vitifoliae Fitch, induced production of swellings
 and rootlet branches. Effects increased with concentration of
 indoleacetic acid. Root sensitivity to indoleacetic acid was not
 greater in susceptible cultivars and does not appear to be a prime
 mechanism of the host plant resistance to grape phylloxera.
 Phylloxera did not preferentially establish on swellings induced by
 indoleacetic acid, but did on preformed grape phylloxera
 tuberosities. Thus, swellings caused by indoleacetic acid are not
 identical to grape phylloxera tuberosities.
 
 
 60                          NAL Call. No.: 442.8 AN72
 A comparison of the level of resistance in diploid Triticum
 monococcum and
 hexaploid Triticum aestivum wheat seedlings to the aphids
 Metopolophium
 dirhodum and Rhopalosiphum padi.
 Spiller, N.J.; Llewellyn, M.
 Warwick : Association of Applied Biologists; 1986 Aug.
 Annals of applied biology v. 109 (1): p. 173-177; 1986 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum monococcum; Triticum aestivum; Diploidy;
 Hexaploidy; Pest resistance; Metopolophium dirhodum;
 Rhopalosiphum padi
 
 
 61                            NAL Call. No.: 421 J822
 Comparison of three techniques to evaluate advanced breeding lines
 of soybean
 for leaf-feeding resistance to corn earworm (Lepidoptera: 
 Noctuidae).
 Hart, S.V.; Burton, J.W.; Campbell, W.V.
 College Park, Md. : Entomological Society of America; 1988 Apr.
 Journal of economic entomology v. 81 (2): p. 615-620; 1988 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: North Carolina; Glycine max; Crop damage; Lines; Pest
 resistance; Heliothis zea; Larvae; Screening
 
 
 62                            NAL Call. No.: 442.8 Z8
 Complementarity of genes for resistance to greenbug [Schizaphis
 graminum
 (Rondani)], biotype E, in sorghum [Sorghum bicolor (L.) Moench].
 Dixon, A.G.O.; Bramel-Cox, P.J.; Harvey, T.L.
 Berlin, W. Ger. : Springer International; 1991.
 Theoretical and applied genetics v. 81 (1): p. 105-110; 1991. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Schizaphis graminum; Genes;
 Complementation; Pest resistance; Biotypes; Segregation;
 Epistasis; Inbred lines
 
 
 63                          NAL Call. No.: 442.8 AN72
 The complementary effects of plant resistance and the choice of
 sowing and
 harvest times in reducing carrot fly (Psila rosae) damage to
 carrots.
 Ellis, P.R.; Hardman, J.A.; Cole, R.A.; Phelps, K.
 Warwick : Association of Applied Biologists; 1987 Oct.
 Annals of applied biology v. 111 (2): p. 415-424; 1987 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Daucus carota; Disease resistance; Sowing date;
 Harvest date; Cultivars; Psila rosae; Crop damage
 
 
 64                            NAL Call. No.: 421 J822
 Components of resistance in three bread wheat lines to Russian
 wheat aphid
 (Homoptera: Aphididae) in South Africa.
 Du Toit, F.
 Lanham, Md. : Entomological Society of America; 1989 Dec.
 Journal of economic entomology v. 82 (6): p. 1779-1781; 1989 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: South Africa; Triticum aestivum; Genotypes; Lines;
 Pest resistance; Hemiptera; Nymphs
 
 Abstract:  Studies were done to determine the level of antibiosis
 and tolerance in three resistant wheat, Triticum aestivum L.,
 lines, PI 262660, PI 137739, and PI 294994, to Diuraphis noxia
 (Mordvilko), a serious pest of wheat in South Africa. Nymphal
 production was lowest on PI 262660, followed by PI 137739 and PI
 294994. The mean production of nymphs per adult aphid over 21 d on
 PI 262660, PI 137739, and PI 294994 was, respectively, 40.0, 55.1,
 and 66.9% of that on the susceptible cv. Betta. In the tolerance
 test, the plant height and dry mass of PI 262660 were significantly
 less affected than other entries. PI 137739 and PI 294994 were as
 severely affected as the susceptible entries.
 
 
 65                          NAL Call. No.: SB123.P535
 Confirmation of a 1A/1R wheat-rye chromosome translocation in the
 wheat
 variety 'Amigo'.
 Schlegel, R.; Kynast, R.
 Berlin, W. Ger. : Paul Parey; 1987 Feb.
 Plant breeding; Zeitschrift fur Pflanzenzuchtung v. 98 (1): p.
 57-60. ill; 1987 Feb.  Includes references.
 
 Language:  English
 
 Descriptors: Triticum; Triticale; Crosses; Varieties; Chromosome
 translocation; Secale cereale; Chromatin; Breeding aims;
 Resistance; Schizaphis graminum; Sitobion avenae
 
 
 66                             NAL Call. No.: QD1.A45
 Consequences of modifying biochemically mediated insect
 resistance in
 Lycopersicon species.
 Kennedy, G.G.
 Washington, D.C. : The Society; 1986.
 ACS Symposium series - American Chemical Society (296): p.
 130-141; 1986.
 Includes 37 references.
 
 Language:  English
 
 Descriptors: Lycopersicon esculentum; Insecticidal properties; Pest
 resistance; Plant breeding; Cultivars; Crop sensitivity
 
 
 67                            NAL Call. No.: 421 J822
 Corn earworm: use of larval traps on corn ears as a method of
 evaluating corn
 lines for resistance.
 Straub, R.W.; Fairchild, M.L.; Keaster, A.J.
 College Park, Md. : Entomological Society of America; 1973 Aug.
 Journal of economic entomology v. 66 (4): p. 989-990. ill; 1973
 Aug.  Includes
 references.
 
 Language:  English
 
 Descriptors: Missouri; Zea mays; Lines; Varieties; Heliothis zea;
 Insect traps; Larvae; Pest resistance
 
 
 68                           NAL Call. No.: SB975.A44
 Corn pest management.
 Hudon, M.; Ogilvie, I.
 Ottawa : University of Ottawa Press; 1984.
 The Role of biological control in pest management / George Allen &
 Alejandro
 Rada. p. 98-102; 1984.  Paper presented at the "International
 Symposium on
 Biological Control in Agriculture," Nov 16/20, 1981, Santiago,
 Chile.
 
 Language:  English
 
 Descriptors: Canada; Zea mays; Plant breeding; Pest resistance;
 Disease resistance; Ostrinia nubilalis; Inbred lines; Diabrotica
 longicornis; Integrated pest management; Gibberella zeae;
 Kabatiella zeae; Trichogramma
 
 
 69                    NAL Call. No.:  SB608.M2I57 1987
 Corn rootworm rearing methodologies.
 Campbell, J.E.; Jackson, J.J.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 60-66. ill; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding programs; Resistance; Insect pests;
 Diabrotica; Species; Mass rearing; Techniques
 
 
 70                            NAL Call. No.: 421 J822
 Correlation between leaf-feeding resistance to European corn borer
 (Lepidoptera: Pyralidae) and resistance to northern corn leaf
 blight.
 Guthrie, W.D.; Barry, B.D.; Rossman, E.C.; Jarvis, J.L.
 College Park, Md. : Entomological Society of America; 1985 Aug.
 Journal of economic entomology v. 78 (4): p. 811-814. ill; 1985
 Aug.  Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Genotypes; Pest resistance; Ostrinia
 nubilalis; Setosphaeria turcica
 
 
 71                           NAL Call. No.: QL461.I57
 Cotton insect resistance studies in the western cotton growing area
 of
 Tanzania.
 Nyambo, B.T.
 Oxford, Eng. : Pergamon Press; 1985.
 Insect science and its application v. 6 (3): p. 379-384; 1985. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Tanzania; Gossypium; Heliothis armigera; Pest
 resistance; Plant breeding; Selective breeding
 
 
 72                            NAL Call. No.: SB249.N6
 Cotton leaf pubescence and relationship to leafhopper and
 sweetpotato whitefly
 populations.
 Fishler, G.; Butler, G.D. Jr; Wilson, F.D.
 Memphis, Tenn. : National Cotton Council and The Cotton
 Foundation; 1988.
 Proceedings - Beltwide Cotton Production Research Conferences. p.
 301-302; 1988.  Conference held on January 3-8, 1988, New
 Orleans, Louisiana.  Includes
 abstract.
 
 Language:  English
 
 Descriptors: Gossypium; Breeding aims; Resistance; Insect pests;
 Empoasca; Bemisia tabaci; Leaf hairs
 
 
 73                                        NAL Call. No.: A00069
 Crop Genetics Inc. reports success against corn pest.
 Gladwell, M.
 Washington, D.C. : The Washington Post Co; 1989 Nov20.
 The Washington post. p. 5-6; 1989 Nov20.
 
 Language:  English
 
 Descriptors: Zea mays; Pest resistance; Bacillus thuringiensis;
 Lepidoptera; Genetic engineering
 
 
 74                                        NAL Call. No.: S1.S68
 Cytoplasmic male sterility of M, T, and C types and resistance of
 corn to
 first-brood European corn borer.
 Frolov, A.N.; Khromenko, A.S.; Chuchmii, I.P.; Gorbacheva, A.G. New
 York, N.Y. : Allerton Press; 1989.
 Soviet agricultural sciences (1): p. 16-19; 1989.  Translated from: 
 Vsesoiuznaia akademiia sel'skokhoziaistvennykh nauk, Doklady, (1),
 1989, p.
 11-14. (20 AK1).  Includes references.
 
 Language:  English; Russian
 
 Descriptors: Ussr; Zea mays; Ostrinia nubilalis; Boring insects;
 Cytoplasmic male sterility; Susceptibility; Genotypes; Line
 differences; Insect control; Survival; Plant damage
 
 
 75                          NAL Call. No.: SB950.A1P3
 Damage assessment and yield losses in sorghum due to the stem borer
 Busseola
 fusca (Fuller) (Lepidoptera: Noctuidae) in northern Nigeria.
 MacFarlane, J.H.
 London : Taylor & Francis; 1990 Apr.
 Tropical pest management v. 36 (2): p. 131-137; 1990 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Nigeria; Sorghum; Cultivars; Pest resistance;
 Varietal susceptibility; Busseola fusca; Stems; Plant damage;
 Assessment; Rating scales; Crop yield; Yield losses; Grain; Seed
 weight; Boring insects; Crop loss
 
 
 76                          NAL Call. No.: SB950.A1P3
 Damage by southwestern corn borer (Diatraea grandiosella Dyar) on
 resistant
 and susceptible maize at three plant growth stages in Mexico.
 Maredia, K.M.; Mihm, J.A.
 London : Taylor & Francis; 1990 Apr.
 Tropical pest management v. 36 (2): p. 141-144; 1990 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Mexico; Zea mays; Varieties; Varietal
 susceptibility; Pest resistance; Crop growth stage; Diatraea
 grandiosella; Larvae; Plant damage; Crop yield; Yield losses;
 Boring insects; Stems
 
 
 77                    NAL Call. No.: 1
 Ag84Te no.1160
 Dent corn inbreds and hybrids resistant to the corn earworm in the
 South.
 Douglas, W. A.; Eckhardt, R. C.
 Washington : U.S. Dept. of Agriculture; 1957; A 1.36-1160.
 13 p. : ill. ; 23 cm. (Technical bulletin / United States
 Department of
 Agriculture ; no. 1160).  Literature cited: p. 13.
 
 Language:  English; English
 
 Descriptors: Corn--Disease and pest resistance--Genetic aspects;
 Heliothis zea
 
 
 78                            NAL Call. No.: 421 J822
 Designation of two new greenbug (Homoptera: Aphididae) biotypes G
 and H.
 Puterka, G.J.; Peters, D.C.; Kerns, D.L.; Slosser, J.E.; Bush, L.;
 Worrall, D.W.; McNew, R.W.
 Lanham, Md. : Entomological Society of America; 1988 Dec.
 Journal of economic entomology v. 81 (6): p. 1754-1759; 1988 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Oklahoma; Texas; Cereals; Varieties; Pest
 resistance; Plant damage; Schizaphis graminum; Biotypes
 
 
 79                           NAL Call. No.: 64.8 C883
 Designations for genes in wheat gerplasm conferring greenbug
 resistance.
 Tyler, J.M.; Webster, J.A.; Merkle, O.G.
 Madison, Wis. : Crop Science Society of America; 1987 May.
 Crop science v. 27 (3): p. 526-527; 1987 May.  Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Schizaphis graminum; Biotypes; Pest
 resistance; Genes; Germplasm; Gene symbols
 
 
 80                            NAL Call. No.: SB249.N6
 Detecting boll weevil resistance in converted cotton race stocks by
 sampling
 single plants.
 Bates, S.L.; Walker, J.K.; Smith, C.W.
 Memphis, Tenn. : National Cotton Council and The Cotton
 Foundation; 1988.
 Proceedings - Beltwide Cotton Production Research Conferences. p.
 552-553; 1988.  Conference held on January 3-8, 1988, New
 Orleans, Louisiana.  Includes
 references.
 
 Language:  English
 
 Descriptors: Gossypium; Genotypes; Resistance; Anthonomus
 grandis; Breeding aims
 
 
 81                            NAL Call. No.: 421 J822
 Detection and mechanisms of Russian wheat aphid (Homoptera:
 Aphididae)
 resistance in barley.
 Webster, J.A.; Baker, C.A.; Porter, D.R.
 Lanham, Md. : Entomological Society of America; 1991 Apr.
 Journal of economic entomology v. 84 (2): p. 669-673; 1991 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Hordeum vulgare; Germplasm; Lines; Pest resistance;
 Screening; Seedlings; Crop damage; Diuraphis noxia
 
 Abstract:  A collection of 524 barley lines from areas of the world
 where the Russian wheat aphid, Diuraphis noxia (Mordvilko) and
 barley, Hordeum vulgare L., have coexisted was evaluated for
 sympatric resistance to this pest. Mass screening tests were
 conducted in a growth chamber and greenhouse with seedlings planted
 in flats. Additional tests to determine the mechanisms of
 resistance were performed with nine of these lines. The lines and
 their sources are PI 366444, PI 366447, PI 366449, PI 366450, PI
 366453 (Afghanistan); CI 1412, PI 4.30140, PI 430142 (Iran); and PI
 447219 (Spain). Various levels of antibiosis and tolerance were
 exhibited in most of the lines tested in comparison with
 'Wintermalt' (CI 15767), the susceptible control. For example, in
 the antibiosis test, an average of 27.3 nymphs per adult were
 produced on PI 366449 compared with 50.0 on 'Wintermalt'. In the
 tolerance test, plant growth and leaf area of some of the
 resistant entries were not affected by the Russian wheat aphid,
 whereas growth and leaf area of infested 'Wintermalt' plants was
 only 61% of noninfested 'Wintermalt' plants. Plant survivors of
 these tests have been saved for developing Russian wheat aphid
 plant-resistant germplasm for the North American barley industry.
 
 
 82                            NAL Call. No.: QL461.M5
 Determination of frequency and distribution of Hessian fly
 (Diptera:  Cecidomyiidae) biotypes in the northeastern soft wheat
 region. Chen, B.H.; Foster, J.E.; Taylor, P.L.; Araya, J.E.;
 Kudagamage, C.
 East Lansing, Mich. : Michigan Entomological Society; 1990. The
 Great Lakes entomologist v. 23 (4): p. 217-221; 1990. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Illinois; Indiana; Michigan; New York; Ohio;
 Triticum aestivum; Mayetiola destructor; Biotypes; Cultivars;
 Genetic variation; Genetic resistance; Virulence; Geographical
 distribution; Pest resistance; Varietal resistance
 
 
 83                             NAL Call. No.: QD1.A45
 Developing research trends in the chemistry of plant resistance to
 pests.
 Hedin, P.A.
 Washington, D.C. : The Society; 1986.
 ACS Symposium series - American Chemical Society (296): p. 2-14;
 1986.
 Includes 41 references.
 
 Language:  English
 
 Descriptors: Pest resistance; Crops; Varieties; Plant breeding;
 Phytoalexins; Pesticides
 
 
 84                            NAL Call. No.: 421 J822
 Development and antibiosis of released soybean germplasm lines
 resistant to
 Mexican bean beetle (Coleoptera: Coccinellidae).
 Hammond, R.B.; Cooper, R.L.
 Lanham, Md. : Entomological Society of America; 1989 Feb.
 Journal of economic entomology v. 82 (1): p. 259-263; 1989 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Ohio; Glycine max; Cultivars; Germplasm; High
 yielding varieties; Lines; Pest resistance; Epilachna varivestis;
 Larvae; Mortality; Survival
 
 Abstract:  Four soybean (Glycine max (L.) Merr.) germplasm lines
 resistant to Mexican bean beetle, Epilachna varivestis Mulsant,
 were developed and released. These lines, 'HC83-123-9,'
 'HC83-46-1,' HC83-46-2,' and 'HC83-50-1,' are from the cross
 'Pixie' x 'PI 229358' and carry resistance (antibiosis) levels
 nearly equal to the resistant parent, 'PI 229358.' They were
 developed by the pedigree breeding procedure, using a systematic
 laboratory bioassay with Mexican bean beetle larvae to identify
 resistant plants in each generation. Survival and development of
 Mexican bean beetle larvae on these lines were similar to that on
 'PI 229358.' Larval mortality for each line was 97.3, 90.7, 90.0,
 and 84.0%, respectively, compared with 27.2 and 98.0% for 'Pixie'
 (a susceptible control) and 'PI 229358,' respectively. More than
 half the larval mortality occurred during the first and second
 stadia. These lines also showed resistance to another soybean
 defoliator; field screening against defoliation by Japanese beetle,
 Popillia japonica Newman, confirmed the high levels of resistance
 of these four lines, with defoliation ratings less than or equal to
 2 for all four lines compared with the
 susceptible cultivar, 'Pixie,' which had a rating of 5 (scale 0-5).
 The resistant lines are determinate plant types of mid-to-late
 group IV maturity. Because of their earlier maturity
 (compared with the PIs) and high level of resistance
 (antibiosis), these lines should be a useful source of resistance
 for the development of high-yielding soybean cultivars with
 resistance to the Mexican bean beetle and other soybean
 defoliator.
 
 
 85                          NAL Call. No.: QL461.E532
 Development of alfalfa weevil (Coleoptera: Curculionidae) larvae
 when reared
 on perennial glandular-haired Medicago species in the greenhouse.
 Danielson, S.D.; Manglitz, G.R.; Sorensen, E.L.
 College Park, Md. : Entomological Society of America; 1986 Apr.
 Environmental entomology v. 15 (2): p. 396-398; 1986 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Medicago; Species; Hypera postica; Pest resistance;
 Hybridization; Glands (plant); Perennials; Greenhouse culture
 
 
 86                            NAL Call. No.: 60.9 AL2
 Development of multiple pest resistance in three alfalfa
 populations.
 Thyr, B.D.; Kehr, W.R.; Manglitz, G.R.; Hartman, B.J.; Hunt, O.J.
 s.l. : U.S. Department of Agriculture, Agricultural Research
 Service; 1979
 Jul.
 Report of the Alfalfa Improvement Conference (26th): p. 17; 1979
 Jul.  Meeting
 held June 6-8, 1978, Brookings, South Dakota.  Includes abstract.
 
 Language:  English
 
 Descriptors: Nebraska; Medicago sativa; Pest resistance; Plant
 breeding methods; Synthetic populations; Acyrthosiphon pisum;
 Therioaphis; Ditylenchus dipsaci; Colletotrichum trifolii;
 Corynebacterium insidiosum; Empoasca fabae
 
 
 87                            NAL Call. No.: 420 F662
 Development of open-pollinated varieties, non-conventional
 hybrids and inbred
 lines of tropical maize with resistance to fall armyworm,
 Spodoptera
 frugiperda (Lepidoptera: Noctuidae), at CIMMYT.
 Mihm, J.A.; Smith, M.E.; Deutsch, J.A.
 Gainesville, Fla. : Florida Entomological Society; 1988 Sep.
 Florida entomologist v. 71 (3): p. 262-268; 1988 Sep.  Paper
 presented at the
 "Fall Armyworm Symposium", 1988.  Includes references.
 
 Language:  English
 
 Descriptors: Mexico; Zea mays; Open pollination; Varieties;
 Hybrids; Inbred lines; Pest resistance; Spodoptera frugiperda;
 Cimmyt
 
 
 88                           NAL Call. No.: 59.9 AM32
 Development of resistance in corn and sorghum to a foliar- and
 ear/panicle-feeding worm complex.
 Wiseman, B.R.
 Washington, D.C. : The Conference; 1985.
 Report of annual Corn and Sorghum Research Conference (40): p.
 108-124. ill; 1985.  Meeting held December 11-26, 1985, Chicago,
 Illinois.  Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Sorghum bicolor; Spodoptera frugiperda;
 Heliothis zea; Germplasm; Pest resistance; Breeding aims
 
 
 89                            NAL Call. No.: SB249.N6
 Developmental changes in the tannin content of cotton leaves:
 implications in
 breeding for pest resistance.
 Bell, A.A.
 Memphis, Tenn. : National Cotton Council and The Cotton
 Foundation; 1988.
 Proceedings - Beltwide Cotton Production Research Conferences. p.
 31; 1988.
 Conference held on January 3-8, 1988, New Orleans, Louisiana. 
 Includes
 abstract.
 
 Language:  English
 
 Descriptors: Gossypium; Germplasm releases; Cultivars;
 Resistance; Insect pests; Leaf analysis; Tannins
 
 
 90                           NAL Call. No.: 64.8 C883
 Diallel analysis of resistance in sorghum to greenbug Biotype E:
 antibiosis
 and tolerance.
 Dixon, A.G.O.; Bramel-Cox, P.J.; Harvey, T.L.
 Madison, Wis. : Crop Science Society of America; 1990 Sep.
 Crop science v. 30 (5): p. 1055-1059; 1990 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Lines; Antibiosis; Schizaphis
 graminum; Biotypes; Diallel analysis; Crosses; Heterosis; General
 combining ability; Specific combining ability; Reciprocal
 effects; Maternal effects; Polygenic inheritance; Cytoplasmic
 inheritance; Genetic effects
 
 Abstract:  The greenbug [Schizaphis graminum (Rondani)] has been
 recognized as a major insect pest of sorghum [Sorghum bicolor (L.)
 Moench] in the Great Plains of the USA since 1968. Biotype E has
 been prominent since 1980 and twelve sources of resistance within
 the Sorghum genus have been identified. The objective of this study
 was to investigate the inheritance of resistance in sorghum among
 seven sources of resistance and three susceptible lines for
 antibiosis and tolerance involving Biotype E. A
 complete diallel mating, including reciprocals, of the ten
 resistant and susceptible lines of sorghum was evaluated in the
 growth chamber to estimate heterosis, general combining ability
 (GCA), specific combining ability (SCA), maternal and specific
 reciprocal effects for seedling antibiosis, and tolerance to
 greenbug Biotype E. The majority of crosses between the resistant
 sources and susceptible lines showed intermediate reactions and
 various degrees of partial dominance for both antibiosis and
 tolerance, suggesting polygenic inheritance. Combining ability
 analyses revealed that GCA, SCA, maternal, and specific
 reciprocal effects were significant for both seedling antibiosis
 and tolerance, but GCA was clearly more important in determining
 tolerance. The most antibiotic parent, IS2388, had the largest GCA
 effect for antibiosis while the most tolerant parent PI 229828, had
 the largest GCA effect for tolerance. The significant maternal and
 specific reciprocal differences found among parents and crosses,
 respectively, suggested that the variation observed in this
 experiment was due not only to direct genetic effects, but also to
 maternal and/or cytoplasmic inheritance and specific interactions
 of cytoplasmic and genetic factors.
 
 
 91                            NAL Call. No.: S601.A34
 Differential effects of nitrogen fertilization of three corn
 genotypes on
 biomass and nitrogen utilization by the southern armyworm,
 Spodoptera
 eridania.
 Manuwoto, S.; Scriber, J.M.
 Amsterdam : Elsevier; 1985 Nov.
 Agriculture ecosystems & environment v. 14 (1/2): p. 25-40; 1985
 Nov.
 Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Genotypes; Spodoptera eridania; Pest
 resistance; Nitrogen fertilizers; Nitrogen metabolism; Nitrogen
 content; Biomass; Dimboa
 
 
 92                            NAL Call. No.: SB599.C8
 Differential feeding by grasshoppers and levels of foliar
 diseases in various
 cultivars of spring cereals.
 Olfert, O.; Hinks, C.F.; Westcott, N.D; Crowle, W.L.; Dziadyk,
 D.A.; Duczek, L.J.
 Guildford : Butterworths; 1988 Oct.
 Crop protection v. 7 (5): p. 338-343; 1988 Oct.  Includes
 references.
 
 Language:  English
 
 Descriptors: Hordeum vulgare; Triticum durum; Triticum aestivum;
 Triticale; Cultivars; Strains; Screening; Resistance; Insect pests;
 Orthoptera; Disease resistance; Fungal diseases; Leaves
 
 
 93                           NAL Call. No.: 64.8 C883
 Differential reactions of Russian wheat aphid to various
 small-grain host
 plants.
 Worrall, W.D.; Scott, R.A.
 Madison, Wis. : Crop Science Society of America; 1991 Mar.
 Crop science v. 31 (2): p. 312-314; 1991 Mar.  Includes
 references.
 
 Language:  English
 
 Descriptors: Diuraphis noxia; Triticum aestivum; Avena sativa;
 Triticale; Pest resistance; Host plants; Genotypes; Cultivars; Test
 plants; Genotype environment interaction; Fecundity;
 Embryos; Genetic resistance
 
 Abstract:  There are no standardized procedures for evaluation of
 host-plant resistance of small grains to Russian wheat aphid (RWA),
 (Mordvilko), Diuraphis noxia. Research results, therefore, often
 are ambiguous. One possible source of ambiguity is the host
 genotype on which aphids are reared prior to being used on test
 plants. In this study, two collections of RWA were cultured
 separately on TX78V2290-36-1 wheat (Triticum aestivum L. em Thell),
 TXGH10989 wheat, 'Nora' oat (Avena sativa L.) and
 'Eronga' triticale (X Triticosecale Wittmack). After a 30-d period
 on the culture plants, the aphids were removed and placed on tester
 plants to determine whether the host-plant genotype used for colony
 maintenance affected aphid performance on
 testers. The tester plants were the same as those used for colony
 maintenance. Aphids were placed on testers from source plants in
 all possible combinations and aphid response to tester genotypes
 was determined by counting the number of embryos produced per
 aphid. Results showed that the source genotype had a significant
 effect on subsequent performance of aphids. The TX78V2290-36-1
 wheat provided the best overall rearing environment of the
 genotypes tested. Aphids originally maintained on TX78V2290-36-1
 successfully discriminated wheat from oat and oat from triticale,
 as well as distinguishing the different levels of resistance of the
 two wheat genotypes.
 
 
 94                             NAL Call. No.: 420 K13
 DIMBOA content at seven stages of plant development in a maize
 synthetic
 cultivar.
 Guthrie, W.D.; Tseng, C.T.; Russell, W.A.; Coats, J.R.; Robbins,
 J.C.; Tollefson, J.J.
 Lawrence, Kan. : The Society; 1986 Apr.
 Journal of the Kansas Entomological Society v. 59 (2): p.
 356-360; 1986 Apr.
 Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Cultivars; Dimboa; Foliar diagnosis;
 Ostrinia nubilalis; Pest resistance
 
 
 95                            NAL Call. No.: 421 J822
 Discrete and interactive effects of plant resistance and nuclear
 polyhedrosis
 viruses for suppression of soybean looper and velvetbean
 caterpillar
 (Lepidoptera: Noctuidae) on soybean.
 Beach, R.M.; Todd, J.W.
 College Park, Md. : Entomological Society of America; 1988 Apr.
 Journal of economic entomology v. 81 (2): p. 684-691; 1988 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Georgia; Glycine max; Cultivars; Genotypes; Pest
 resistance; Anticarsia gemmatalis; Pseudoplusia includens;
 Biological control; Polyhedrosis viruses
 
 
 96                     NAL Call. No.:  SB191.W5I5 1983
 Disease and insect resistance in wild wheats.
 Gill, B.S.; Browder, L.E.; Hatchett, J.H.; Harvey, T.L.; Martin,
 T.J.; Raupp, W.J.; Sharma, H.C.; Waines, J.G.
 Kyoto : Plant Germ-Plasm Institute, Faculty of Agriculture, Kyoto
 University; 1983.
 Proceedings of the sixth International Wheat Genetics Symposium /
 edited by
 Sadao Sakamoto. p. 785-792. maps; 1983.  Includes references.
 
 Language:  English
 
 Descriptors: Triticum; Wild plants; Disease resistance; Insect
 pests; Pest resistance; Genetic resources; Plant breeding;
 Puccinia recondita; Rust diseases; Wheat streak mosaic virus;
 Mayetiola destructor; Schizaphis graminum
 
 
 97                            NAL Call. No.: 421 J822
 Distributions among S1 lines for European corn borer
 (Lepidoptera: Pyralidae)
 and stalk rot resistance ratings in two maize synthetics improved
 by recurrent
 selection.
 Nyhus, K.A.; Russell, W.A.; Guthrie, W.D.
 Lanham, Md. : Entomological Society of America; 1989 Feb.
 Journal of economic entomology v. 82 (1): p. 239-245; 1989 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding programs; Genetic variation; Lines;
 Pest resistance; Ostrinia nubilalis; Disease resistance; Diplodia
 maydis; Heritability
 
 Abstract:  Four cycles of recurrent selection were used to reduce
 leaf-feeding damage caused by first-generation European corn borer
 (ECB), Ostrinia nubilalis Hubner, and pith decay associated with
 Diplodia, Diplodia maydis (Berkeley) Saccardo, stalk rot (DSR) in
 two maize, Zea mays L., synthetics, BSAA and BSBB. Recurrent
 selection was based on the evaluation of S(1)
 progenies. For this study, 100 unselected S(1) lines from each of
 the original (CO) and improved (C4) populations of BSAA and BSBB
 were evaluated for ECB resistance, DSR resistance, and stalk rind
 puncture. The distributions of S(1) lines for the three traits and
 the genetic relationships among traits were evaluated to determine
 the effectiveness of the recurrent selection programs. The C4s of
 both synthetics were more resistant than the COs to ECB leaf
 feeding after artificial infestations, were more
 resistant to DSR after artificial inoculations, and possessed
 harder stalks. The differences between the CO and C4 means were
 highly significant (P less than 0.01) in all instances.
 Reductions in genetic variation were observed in BSAA for ECB
 ratings and in BSBB for all three traits. The reductions in genetic
 variation were especially dramatic for ECB ratings, indicating that
 relatively few gene pairs were segregating for leaf-feeding
 resistance in BSAA and BSBB. Low and generally nonsignificnant
 correlations between DSR ratings and rind
 puncture readings indicated that selection for both traits would be
 justified to improve field stalk lodging resistance.
 
 
 98                            NAL Call. No.: 421 J822
 Distributions for European corn borer (Lepidiotera: Pyralidae)
 resistance ratings of S1 lines from 'BS9' corn.
 Klenke, J.R.; Russell, W.A.; Guthrie, W.D.
 College Park, Md. : Entomological Society of America; 1986 Aug.
 Journal of economic entomology v. 79 (4): p. 1076-1081; 1986 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Iowa; Zea mays; Cultivars; Congenic resistant lines;
 Ostrinia nubilalis; Pest resistance; Plant breeding
 
 
 99                          NAL Call. No.: S383.A3N44
 Early assessment of aphid tolerant accessions of annual medics for
 central
 western New South Wales.
 Hochman, Z.
 Sydney : The Department; 1985 Dec.
 Technical bulletin - Department of Agriculture, New South Wales
 (32): p.
 29-33; 1985 Dec.  Paper presented at "Workshop on The Ecology and
 Agronomy of
 Medics," Condobolin, New South Wales, 1981.  Includes references.
 
 Language:  English
 
 Descriptors: New south wales; Medicago; Genotypes; Annual field
 crops; Acyrthosiphon; Acyrthosiphon pisum; Therioaphis;
 Therioaphis trifolii; Insect pests; Pest resistance; Varietal
 susceptibility; Selection criteria; Canonical variates; Germplasm
 
 
 100                         NAL Call. No.: QL461.E532
 Ecological, agricultural, genetic, and commercial considerations in
 the
 deployment of insect-resistant germplasm.
 Kennedy, G.G.; Gould, F.; Deponti, O.M.B.; Stinner, R.E.
 Lanham, Md. : Entomological Society of America; 1987 Apr.
 Environmental entomology v. 16 (2): p. 327-338; 1987 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Plant breeding; Insect control; Genetics; Heliothis
 zea; Simulation models
 
 Abstract:  We make an attempt to identify the agricultural and
 ecological factors of greatest importance in assessing the
 applicability of different modalities (antibiosis, antixenosis,
 tolerance) and levels of insect resistance to the pest management
 requirements of different crops and cropping systems. Emphasis is
 placed on the importance of matching the type and level of
 resistance to the pest's biology (e.g., feeding habits,
 development on the crop, alternate host, patterns of invasion of
 the crop, number of generations passed in the crop) and the
 production requirements of the crop. We illustrate how, depending
 on context, the use of a particular modality and level of
 resistance may simplify pest management, reduce crop losses without
 simplifying pest management, or by changing a pest whose occurrence
 in damaging populations is highly predictable to one whose
 occurrence is irregular and unpredictable, complicate pest
 management. The HELSIM Heliothis zea population dynamics model is
 used to illustrate how simulation models can be used to explore the
 consequences of deploying particular modalities and levels of
 insect resistance. In exploring genetic considerations in the use
 of insect-resistant germplasm, we focus on the problem of
 maximizing the durability of insect resistance by minimizing
 selection for virulent biotypes. We examine whether some
 modalities of resistance are inherently more stable than others
 regarding selection of virulent biotypes, and argue that in judging
 the inherent durability of a particular resistance, exclusive focus
 on the genetic nature of the plant resistance is inadequate.
 Knowledge of the genetic variability of the target pest vis a vis
 the plant resistance and an understanding of the direct biological
 effects of the resistance on the insect are also essential. The
 selection pressure for virulent insect
 biotypes exerted by resistant crop cultivars is shown to be
 dependent upon the modality of resistance as well as the
 agricultural and ecol
 
 
 101                                       NAL Call. No.: S1.S68
 Ecological and genetic nature of inheritance of winter wheat's
 resistance to
 frit fly damage.
 Susidko, P.I.; Ryabchenko, N.A.
 New York, N.Y. : Allerton Press; 1990.
 Soviet agricultural sciences (7): p. 1-3; 1990.  Translated from:
 Doklady
 Vsesoyuznoi Akademii Sel'skokhozyastvennykh Nauk Im. V.I. Lenina,
 No. 7, 1990, p. 2-4. (20 AK1).  Includes references.
 
 Language:  English; Russian
 
 Descriptors: Ukrainian ssr; Triticum aestivum; Winter wheat;
 Genotypes; Resistance; Crop damage; Oscinella frit; Genetic
 control; Inheritance; Chromosomes; Organogenesis
 
 
 102                          NAL Call. No.: 421 EN895
 Effect of cassava varietal mixtures on the whiteflies
 Aleurotrachelus socialis
 and Trialeurodes variabilis in Colomibia.
 Gold, C.S.; Altieri, M.A.; Bellotti, A.C.
 Dordrecht : Kluwer Academic Publishers; 1989 Dec15.
 Entomologia experimentalis et applicata v. 53 (3): p. 195-202; 1989
 Dec15.
 Includes references.
 
 Language:  English
 
 Descriptors: Colombia; Manihot esculenta; Variety trials; Pest
 resistance; Hemiptera; Trialeurodes; Population dynamics; Yield
 losses
 
 
 103                           NAL Call. No.: 421 J822
 Effect of constitutive and herbivore-induced extractables from
 susceptible and
 resistant soybean foliage on nonpest and pest noctuid
 caterpillars.
 Wheeler, G.S.; Slansky, F. Jr
 Lanham, Md. : Entomological Society of America; 1991 Jun.
 Journal of economic entomology v. 84 (3): p. 1068-1079; 1991 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Florida; Glycine max; Lines; Pest resistance; Plant
 extracts; Susceptibility; Crop damage; Anticarsia gemmatalis;
 Helicoverpa zea; Heliothis virescens; Spodoptera frugiperda;
 Trichoplusia ni; Growth rate; Mortality; Rearing techniques
 
 Abstract:  Soybean foliage from susceptible ('Bragg') and
 resistant (PI 229358 and D75-10169) lines was extracted in
 several nonpolar and polar organic solvents to assess
 constitutive (mite-free) and induced (mite-damaged) activity
 against nonpest and pest noctuid caterpillars. The benzene
 fraction, incorporated in artificial diet, contained most of the
 constitutive activity of both the resistant and susceptible lines,
 as indicated by reduced relative growth rate (RGR) of velvetbean
 caterpillar, Anticarsia gemmatalis Hubner; corn
 earworm, Helicoverpa (= Heliothis) zea (Boddie); tobacco budworm,
 H. virescens (F.); and fall armyworm, Spodoptera frugiperda (J. E.
 Smith) compared with larvae fed the extract- and solvent-free
 control diet. Induced activity from mite-damaged greenhouse-grown
 plants and A. gemmatalis-damaged field-grown plants was detected
 primarily in the petroleum ether fraction. Among the species tested
 on the induced fractions (A. gemmatalis, S. frugiperda, and the
 cabbage looper, Trichoplusia ni (Hubner)), S. frugiperda was the
 most sensitive species, as demonstrated by reduced RGR. Overall,
 among the species (H. zea, H. virescens, and T. ni) more tolerant
 of the soybean foliage fractions, only H. zea is a major soybean
 foliage pest. Surprisingly, among the two most sensitive species,
 A. gemmatalis is a legume specialist and major soybean pest,
 whereas S. frugiperda is a polyphagous species but not a soybean
 pest. These results suggest that presumed soybean-adapted species
 may not be more resistant than soybean-naive species to the
 deleterious effects of soybean foliage extracts.
 
 
 104                           NAL Call. No.: 420 EN86
 The effect of different maize genotypes on the maize stalk-borer,
 Busseola
 fusca (Fuller) (Lepidoptera: Noctuidae), feeding in whorl tissue.
 Barrow, M.R.
 Pretoria : The Society; 1985 Apr.
 Journal of the Entomological Society of Southern Africa v. 48 (1):
 p. 113-119; 1985 Apr.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Genotypes; Busseola fusca; Pest resistance
 
 
 105                           NAL Call. No.: 420 EN86
 The effect of first generation maize stalkborer, Busseola fusca
 (Fuller)
 (Lepidoptera: Noctuidae), on yield of different maize genotypes.
 Barrow, M.R.
 Pretoria : The Society; 1987 Sep.
 Journal of the Entomological Society of Southern Africa v. 50 (2):
 p. 291-298; 1987 Sep.  Includes references.
 
 Language:  English
 
 Descriptors: South Africa; Zea mays; Genotypes; Pest resistance;
 Crop yield; Busseola fusca; Crop damage; Feeding habits
 
 
 106                         NAL Call. No.: QL461.E532
 Effect of husk tightness and insect (Lepidoptera) infestation on
 aflatoxin
 contamination of preharvest maize.
 Barry, D.; Lillehoj, E.B.; Widstrom, N.W.; McMillan, W.W.; Zuber,
 M.S.; Kwolek, W.F.; Guthrie, W.D.
 College Park, Md. : Entomological Society of America; 1986 Dec.
 Environmental entomology v. 15 (6): p. 1116-1118; 1986 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Missouri; Iowa; Georgia; Zea mays; Hybrids; Husks;
 Kernels; Pest resistance; Aflatoxins; Ostrinia nubilalis;
 Heliothis zea; Aspergillus flavus; Contamination
 
 
 107                           NAL Call. No.: 421 J822
 Effect of research on commercial hybrid maize resistance to
 European corn
 borer (Lepidoptera: Pyralidae).
 Barry, D.; Darrah, L.L.
 Lanham, Md. : Entomological Society of America; 1991 Jun.
 Journal of economic entomology v. 84 (3): p. 1053-1059; 1991 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Missouri; Zea mays; Crop damage; Crop losses;
 Feeding behavior; Hybrids; Pest resistance; Ostrinia nubilalis;
 Agricultural research
 
 Abstract:  Economic loss caused by the European corn borer,
 Ostrinia nubilalis (Hubner), amounts to millions of dollars per
 year. Maize breeding programs funded from public and private
 sources have developed and released germplasm with resistance to
 European corn borer whorl leaf feeding and, to a lesser extent,
 sheath and sheath collar feeding during flowering. A 4-yr study of
 100 hybrids each year was undertaken to evaluate levels of
 resistance to European corn borer available to the farmer in
 commercial hybrids. About 90% of the maize hybrids evaluated have
 some resistance to whorl leaf feeding and about 75% have some
 resistance to sheath and sheath collar feeding. In approximately
 two-thirds of the hybrids evaluated in Missouri, the resistance
 levels could be further enhanced and susceptible hybrids improved
 with the introduction of additional genes for resistance.
 
 
 108                          NAL Call. No.: 421 EN895
 Effect of secondary plant substances on winter wheat resistance to
 grain
 aphid.
 Leszczynski, B.; Wright, L.C.; Bakowski, T.
 Dordrecht : Kluwer Academic Publishers; 1989 Sep.
 Entomologia experimentalis et applicata v. 52 (2): p. 135-139; 1989
 Sep.
 Includes references.
 
 Language:  English
 
 Descriptors: Poland; Triticum; Winter wheat; Cultivars; Pest
 resistance; Sitobion avenae; Chemical constituents of plants;
 Alkaloids; Hydroxamic acids; Phenols
 
 
 109                          NAL Call. No.: 421 EN895
 Effect of stalk damage on growth and yield of certain maize
 cultivars by the
 maize stalk borer Chilo partellus.
 Kumar, H.
 Dordrecht : Dr W. Junk Publishers; 1988 Feb.
 Entomologia experimentalis et applicata v. 46 (2): p. 149-153; 1988
 Feb.
 Includes references.
 
 Language:  English
 
 Descriptors: India; Zea mays; Cultivars; Crop damage; Pest
 resistance; Chilo partellus; Crop yield; Growth; Plant height
 
 
 110                          NAL Call. No.: SB599.J69
 Effectiveness of selected genes for Hessian fly resistance in
 wheat.
 Buntin, G.D.; Bruckner, P.L.; Johnson, J.W.; Foster, J.E.
 Clemson, S.C. : South Carolina Entomological Society; 1990 Oct.
 Journal of agricultural entomology v. 7 (4): p. 283-291; 1990 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Georgia; Triticum aestivum; Mayetiola destructor;
 Antibiosis; Genetic resistance
 
 
 111                           NAL Call. No.: 421 J822
 Effectiveness of wheat genes for Hessian fly (Diptera: 
 Cecidomyiidae)
 resistance in Texas.
 Lidell, M.C.; Schuster, M.F.
 Lanham, Md. : Entomological Society of America; 1990 Jun.
 Journal of economic entomology v. 83 (3): p. 1135-1139; 1990 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Texas; Triticum aestivum; Cultivars; Genes; Pest
 resistance; Mayetiola destructor
 
 Abstract:  Biotypes of Hessian flies, Mayetiola destructor (Say),
 collected from wheat, Triticum aestivum (L.), in four North Central
 Texas locations were determined in 1986 and 1987. During 1986 the
 Great Plains A and C biotypes were found to be most prevalent in
 Hessian fly populations, whereas in 1987 the A, C, and F biotypes
 were most common. Results from biotype experiments and infestation
 ratings of wheat lines from the Uniform Hessian Fly Nursery in
 1986-1988 indicated that while all genes for Hessian fly resistance
 provided protection from infestation, the H6, H7H8, and H12 genes
 were the least effective for use in Texas.
 
 
 112                         NAL Call. No.: QL461.E532
 Effects of ancymidol and gibberellic acid on the response of
 susceptible
 'Newton' and resistance 'Abe' winter wheat infested by biotype E
 Hessian flies
 (Diptera: Cecidomyiidae).
 Wellso, S.G.; Coolbaugh, R.C.; Hoxie, R.P.
 Lanham, Md. : Entomological Society of America; 1991 Apr.
 Environmental entomology v. 20 (2): p. 489-493; 1991 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Mayetiola destructor; Varietal
 resistance; Varietal susceptibility; Ancymidol; Gibberellic acid;
 Carbohydrates
 
 Abstract:  Susceptible 'Newton' and resistant 'Abe' winter wheat
 (Triticum aestivum L. em Thell.) were infested with larvae of
 biotype E Hessian fly, Mayetiola destructor (Say). Plants and
 crowns of infested 'Newton' weighed less, were shorter, had fewer
 tillers, and had significantly less soluble carbohydrates than the
 control plants. Only the plant height of infested resistant 'Abe'
 was significantly reduced. This finding was unexpected because,
 avirulent larvae have never been shown to affect the growth of a
 resistant host. In 'Newton,' only the quantity of sucrose differed
 between treatments, being significantly greater in the infested
 than the control plants, although there was a trend for the control
 plants to have more fructan and less
 sucrose, glucose, and fructose than the treated plants. No
 differences were noted in soluble carbohydrates between infested
 and control 'Abe.' Ancymidol, a plant growth retardant, stunted
 both wheat cultivars but did not alter resistance in 'Abe.'
 Gibberellic acid (GA3) reversed ancymidol-induced growth
 inhibition but did not reverse Hessian fly stunting in 'Newton.'
 Therefore, stunting of wheat by the Hessian fly and ancymidol
 treatments appear to involve different biochemical pathways.
 
 
 113                           NAL Call. No.: S601.A34
 Effects of cotton cultivars on feeding of Heliothis armigera and
 Spodoptera
 littoralis larvae and on oviposition of Bemisia tabaci.
 Navon, A.; Melamed-Madjar, V.; Zur, M.; Ben-Moshe, E.
 Amsterdam : Elsevier; 1991 Mar.
 Agriculture, ecosystems and environment v. 35 (1): p. 73-80; 1991
 Mar.
 Includes references.
 
 Language:  English
 
 Descriptors: Israel; Texas; Gossypium hirsutum; Cultivars; Crop
 damage; Pest resistance; Spodoptera littoralis; Bemisia tabaci;
 Helicoverpa armigera; Larvae; Oviposition; Feeding behavior
 
 
 114                         NAL Call. No.: SB950.A1P3
 Effects of cultivar, time and amount of Chilo partellus Swinhoe
 (Lepidoptera:  Pyralidae) infestation on sorghum yield components
 in Kenya. Alghali, A.M.
 London : Centre for Overseas Pest Research; 1986 Apr.
 Tropical pest management v. 32 (2): p. 126-129, 190, 193-194; 1986
 Apr. Includes references.
 
 Language:  English
 
 Descriptors: Kenya; Sorghum; Chilo partellus; Pest control;
 Cultivars; Pest resistance; Timeliness; Population density; Yield
 losses
 
 
 115                         NAL Call. No.: SB123.P535
 The effects of different cotton varieties on the carmine spider
 mite, Tetranychus cinnabarinus Boisd. (Acari : Tetranychidae).
 Sengonca, C.; Lababidi, M.S.; Gerlach, S.
 Berlin, W. Ger. : Paul Parey; 1986 Dec.
 Plant breeding; Zeitschrift fur Pflanzenzuchtung. p. 297-303; 1986
 Dec.
 Includes references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Varieties; Pest resistance;
 Tetranychus cinnabarinus; Development; Longevity; Fecundity
 
 
 116                         NAL Call. No.: 442.8 AN72
 Effects of hydroxamic acids on the resistance of wheat to the aphid
 Sitobion
 avenae.
 Bohidar, K.; Wratten, S.D.; Niemeyer, H.M.
 Warwick : Association of Applied Biologists; 1986 Aug.
 Annals of applied biology v. 109 (1): p. 193-198; 1986 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Sitobion avenae; Pest resistance;
 Hydroxamic acids
 
 
 117                         NAL Call. No.: QL461.E532
 Effects of leaf position, leaf wounding, and plant age of two
 soybean
 genotypes on soybean looper (Lepidoptera: Noctuidae) growth.
 Reynolds, G.W.; Smith, C.M.
 College Park, Md. : Entomological Society of America; 1985 Aug.
 Environmental entomology v. 14 (4): p. 475-478; 1985 Aug. 
 Includes references.
 
 Language:  English
 
 Descriptors: Glycine max; Genotypes; Pest resistance;
 Pseudoplusia includens; Leaf age; Wounds
 
 
 118                   NAL Call. No.:  SB608.R5C65 1990
 Effects of nitrogenous fertilizer, insecticides and plant spacing
 on insect
 pests and yields of flooded rice in eastern India.
 Chakraborty, D.P.; Maslen, N.R.; Holt, J.
 New York Published for the Society of Chemical Industry by
 Elsevier Applied
 Science; 1990.
 Pest management in rice / edited by B.T. Grayson, M.B. Green, and
 L.G.
 Copping. p. 167-176; 1990.  Paper presented at the "Conference on
 Pest
 Management in Rice," June 4-7, 1990, London.  Includes
 references.
 
 Language:  English
 
 Descriptors: Bihar; Orissa; West bengal; Oryza sativa; Flooded
 rice; Nephotettix; Nilaparvata lugens; Scirpophaga incertulas;
 Sogatella furcifera; Incidence; Insecticides; Nitrogen
 fertilizers; Plant density; Varietal resistance; Yield response
 functions; Field tests
 
 
 119                           NAL Call. No.: 421 J822
 Effects of resistant maize silks on corn earworm (Lepidoptera:
 Noctuidae)
 biology: a laboratory study.
 Wiseman, B.R.; Isenhour, D.J.
 Lanham, Md. : Entomological Society of America; 1990 Apr.
 Journal of economic entomology v. 83 (2): p. 614-617; 1990 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Cultivars; Hybrids; Pest resistance;
 Heliothis zea; Development; Diet studies; Growth; Laboratory tests;
 Oviposition; Population decrease
 
 Abstract:  Results of a laboratory study show that even low levels
 of resistant maize, Zea mays L., silks reduced corn
 earworm, Heliothis zea (Boddie), growth and extended the life cycle
 by about 3 d. An intermediate level of resistance in maize silks
 reduced corn earworm growth, extended developmental time by about
 8 d per generation, and subsequently reduced egg production by
 approximately 30%. A high level of resistance in maize silks
 reduced corn earworm growth, extended the life cycle by about 20 d,
 and reduced egg production by about 65% per generation. In addition
 to these parameters, if corn earworm attacked maize each
 generation, the intermediate level of this type of resistance would
 eliminate about two generations per year and the high level of
 resistance 40-50% of the generations per year. Thus, if hybrid
 maize can be developed with intermediate to high levels of
 resistance to corn earworm, then populations that usually
 devastate alternate crops can be dramatically reduced while
 reducing pesticide use by growers.
 
 
 120                            NAL Call. No.: 420 K13
 Effects of sorghum density and resistance on infestations of
 greenbug, Schizaphis graminum (Homoptera: Aphididae).
 Harvey, T.L.; Thompson, C.A.
 Lawrence, Kan. : The Society; 1988 Jan.
 Journal of the Kansas Entomological Society v. 61 (1): p. 68-71;
 1988 Jan.
 Includes references.
 
 Language:  English
 
 Descriptors: Sorghum; Hybrids; Susceptibility; Pest resistance;
 Plant density; Schizaphis graminum
 
 
 121                         NAL Call. No.: QL461.E532
 Effects of temperature on development of corn earworm
 (Lepidoptera: Noctuidae)
 on meridic diets of resistant and susceptible corn silks.
 Wiseman, B.R.; Isenhour, D.J.
 Lanham, Md. : Entomological Society of America; 1989 Aug.
 Environmental entomology v. 18 (4): p. 683-686; 1989 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Heliothis zea; Larvae; Development;
 Temperatures; Resistance to injurious factors
 
 Abstract:  Effects of interactions among temperature (20, 25, and
 30 degrees C), known resistant and susceptible corn genotypes
 ('Zapalote Chico' and 'Stowell's Evergreen'), and concentrations of
 corn silk material-pinto bean diet mixture (0 and 18.75, 37.5 and
 67.0 mg) on corn earworm, Heliothis zea (Boddie), growth ad
 developmental parameters were evaluated. Parameters measured were:
 9-d larval weights, developmental time of larvae, weight of pupae,
 and days to adult eclosion. Corn earworm growth was
 slowest at 20 degrees C and fastest at 30 degrees C. Significant (P
 less than 0.05) differences caused by the resistant 'Zapalote
 Chico' compared with the susceptible 'Stowell's Evergreen' were
 measured consistently at 25 degrees C for all four developmental
 parameters. The median temperature (25 degrees C) appears to be
 optimun for detecting growth differences between resistant and
 susecptible plant materials regardless of silk concentration.
 
 
 122                          NAL Call. No.: 421 EN895
 Electrical penetration graphs from Nilaparvata lugens on
 resistant and
 susceptible rice varieties.
 Kimmins, F.M.
 Dordrecht : Kluwer Academic Publishers; 1989 Jan.
 Entomologia experimentalis et applicata v. 50 (1): p. 69-79; 1989
 Jan.
 Includes references.
 
 Language:  English
 
 Descriptors: Oryza sativa; Varieties; Crop damage; Electronics;
 Monitoring; Pest resistance; Nilaparvata lugens; Phloem;
 Ingestion
 
 
 123                       NAL Call. No.:  QK981.5.G464
 Engineering insect and herbicide-resistant crops.
 Leemans, J.
 Cold Spring Harbor, N.Y. : Cold Spring Harbor Laboratory; 1988.
 Genetic improvements of agriculturally important crops : progress
 and issues /
 edited by Robert T. Fraley, Nicholas M. Frey, Jeff Schell. p.
 77-81; 1988.
 (Current communications in molecular biology).  Includes
 references.
 
 Language:  English
 
 Descriptors: Solanum tuberosum; Nicotiana tabacum; Genetic
 engineering; Breeding aims; Resistance; Insect pests; Herbicides;
 Agrobacterium; Streptomyces
 
 
 124                         NAL Call. No.: QL461.E532
 Enhanced predation by Orius insidiosus (Hemiptera: Anthocoridae) on
 larvae of
 Heliothis zea and Spodoptera frugiperda (Lepidoptera: Noctuidae)
 caused by
 prey feeding on resistant corn genotypes.
 Isenhour, D.J.; Wiseman, B.R.; Layton, R.C.
 Lanham, Md. : Entomological Society of America; 1989 Jun.
 Environmental entomology v. 18 (3): p. 418-422; 1989 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Heliothis zea; Spodoptera frugiperda;
 Larvae; Genotypes; Resistance to injurious factors; Orius
 insidiosus; Predators of insect pests
 
 Abstract:  Prey feeding on resistant versus susceptible corn
 genotypes was investigated for its effect on predation by Orius
 insidiosus (Say). Fall armyworm, Spodoptera frugiperda (J.E.
 Smith), that fed on fresh foliage of the resistant corn genotype
 'MpSWCB-4' suffered significantly higher rates of predation by
 adult O. insidiosus (Say) than did armyworm fed 'Cacahuacintle,' a
 susceptible genotype. Similar results were obtained when corn
 earworm, Heliothis zea (Boddie), were fed a meridic diet
 containing silks from 'Zapalote Chico' compared with a diet without
 silks. A type II functional response was exhibited by O. insidiosus
 preying on fall armyworm but not on corn earworm. Feeding by corn
 earworm on meridic diets that contained resistant silks increased
 the age of the prey that were susceptible to attack by the
 predator.
 
 
 125                          NAL Call. No.: SB931.E57
 Entomology and horticulture of muscadine grapes.
 Dutcher, J.D.; McGiffen, K.C.; All, J.N.
 Boulder : Westview Press; 1988.
 The Entomology of indigenous and naturalized sysems in
 agriculture / edited by
 Marvin K. Harris and Charles E. Rogers. p. 73-90. maps; 1988.
 (Westview
 studies in insect biology).  Includes references.
 
 Language:  English
 
 Descriptors: U.S.A.; Vitis; Breeding programs; Cultivars; Host
 parasite relationships; Insect pests; Pest control; Pest
 resistance; Viticulture
 
 
 126                           NAL Call. No.: 421 AN72
 Entomology of oilseed brassica crops.
 Lamb, R.J.
 Palo Alto, Calif. : Annual Reviews, Inc; 1989.
 Annual review of entomology v. 34: p. 211-229; 1989.  Literature
 review.
 Includes references.
 
 Language:  English
 
 Descriptors: Brassica; Oil plants; Plant damage; Host parasite
 relationships; Insect pests; Insect control; Insecticides;
 Cultural control; Pest resistance; Plant breeding
 
 
 127                           NAL Call. No.: 421 J822
 European corn borer (Lepidoptera: Pyralidae) leaf-feeding
 resistance and
 DIMBOA content in inbred lines of dent maize grown under field
 versus
 greenhouse conditions.
 Guthrie, W.D.; Wilson, R.L.; Coats, J.R.; Robbins, J.C.; Tseng,
 C.T.; Jarvis, J.L.; Russell, W.A.
 College Park, Md. : Entomological Society of America; 1986 Dec.
 Journal of economic entomology v. 79 (6): p. 1492-1496. ill; 1986
 Dec.
 Includes references.
 
 Language:  English
 
 Descriptors: Ostrinia nubilalis; Zea mays; Inbred lines; Pest
 resistance; Leaves; Animal feeding; Biochemistry; Chemical
 constituents of plants; Greenhouse experimentation; Field
 experimentation
 
 
 128                          NAL Call. No.: 64.8 C883
 European corn borer resistance and cell wall composition of three
 maize
 populations.
 Buendgen, M.R.; Coors, J.G.; Grombacher, A.W.; Russell, W.A.
 Madison, Wis. : Crop Science Society of America; 1990 May.
 Crop science v. 30 (3): p. 505-510; 1990 May.  Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Cell wall components; Nutrient contents of
 plants; Fiber content; Lignin; Ash content; Nitrogen content; Pest
 resistance; Ostrinia nubilalis; Recurrent selection;
 Digestibility
 
 Abstract:  Feeding activities of herbivorous insects are
 influenced by host plant nutritional quality. Improved insect
 resistance resulting from either natural or artificial selection
 may be due, in part, to changes in nutritive constituents of
 plants. The first objective of this study was to measure changes in
 detergent fiber, lignin, ash, and N concentrations in whorls, leaf-
 sheaths, and stalks of the BS9 maize (Zea mays L.)
 population across five cycles of selection for resistance to the
 European corn borer (ECB) [Ostrinia nubilalis (Hubner)]. The second
 objective was to evaluate ECB resistance in the WFISIHI and WFISILO
 maize populations, which were developed for high and low
 concentrations, respectively, of indigestible plant
 constituents (acid detergent fiber, lignin, and silica) in the leaf
 sheath. Leaf-sheath composition for all five cycles of BS9 was
 measured in three environments in Iowa. Whorl, leaf-sheath and
 stalk composition, as well as first-and second-generation ECB
 resistance of populations WFISIHI, WFISILO and Cycles 0, 2, 4, and
 5 of BS9 were evaluated in two environments in Wisconsin. Whorl
 composition was not related to changes in ECB resistance in any
 population. In BS9, leaf-sheath and stalk concentrations of neutral
 and acid detergent fiber, cellulose, and lignin increased linearly
 over selection cycles. In contrast, WFISIHI was as susceptible to
 second-generation ECB as WFISILO, suggesting that the responses in
 BS9 may be due to linkage or unintentional selection. Populations
 BS9, WFISIHI, and WFISILO, however, were derived from diverse
 sources, and it is likely that mechanisms for resistance differ for
 the three populations.
 
 
 129                   NAL Call. No.:  SB608.M2I57 1987
 Evaluating and breeding for maize resistance to the rootworm
 complex.
 Branson, T.F.; Sutter, G.R.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 130-139.
 ill; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding programs; Resistance; Diabrotica;
 Species; Evaluation; Techniques
 
 
 130                   NAL Call. No.:  SB608.M2I57 1987
 Evaluating maize for resistance to tropical stem borers,
 armyworms, and
 earworms.
 Mihm, J.A.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 109-121.
 ill; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding programs; Resistance; Diatraea
 saccharalis; Diatraea grandiosella; Spodoptera frugiperda;
 Helicoverpa zea; Germplasm; Evaluation; Techniques
 
 
 131                        NAL Call. No.: SB123.3.U84
 Evaluating the germplasm of groundnut (Arachis hypogaea) and wild
 Arachis
 species at ICRISAT.
 Moss, J.P.; Ramanatha Rao, V.; Gibbons, R.W.
 Cambridge [Cambridgeshire] : Cambridge University Press; 1989. The
 Use of plant genetic resources / edited by A.H.D. Brown ... [et
 al.].. p.
 212-234. ill; 1989.  Paper presented at the "Workshop on Genetic
 Resources and
 the Plant Breeder," September 9-12, 1986, Montpellier, France. 
 Literature
 review.  Includes references.
 
 Language:  English
 
 Descriptors: India; Arachis hypogaea; Germplasm; Plant
 collections; Evaluation; Screening tests; Agronomic
 characteristics; Plant diseases; Disease resistance; Resistance;
 Insect pests; Drought resistance
 
 
 132                    NAL Call. No.:  100 Ar42 no.700
 Evaluation of a selected cross-section of cottons for resistance to
 the boll
 weevil..  Evaluation of a selected cross section of cottons for
 resistance to
 the boll weevil
 Hunter, Robert C.
 Fayetteville, Ark. : Agricultural Experiment Station, Division of
 Agriculture, University of Arkansas,; 1965.
 38 p. : ill. ; 23 cm. (Bulletin (University of Arkansas.
 (Fayetteville
 campus). Agricultural Experiment Station) ; 700.).  Cover title.
 Bibliography: p. 37-38.
 
 Language:  English; English
 
 Descriptors: Cotton; Disease and pest resistance; Arkansas; Boll
 weevil; Arkansas
 
 
 133                        NAL Call. No.: aSB205.S7S6
 Evaluation of certain specialty soybean germplasm for corn
 earworm resistance
 and harvest index.
 Joshi, J.M.; Dadson, R.B.; Nobakht, M.
 Ames, Iowa : The Service; 1989 Apr.
 Soybean genetics newsletter - U.S. Department of Agriculture,
 Agricultural
 Research Service v. 16: p. 141-144; 1989 Apr.  Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Helicoverpa zea; Cultivars; Pest
 resistance; Genetic resistance; Pods; Damage; Harvest index
 
 
 134                           NAL Call. No.: 421 J822
 Evaluation of chrysanthemum resistance to oviposition and larval
 feeding of
 the European corn borer (Lepidoptera: Pyralidae).
 Schultz, P.B.; Coffelt, M.A.
 Lanham, Md. : Entomological Society of America; 1989 Oct.
 Journal of economic entomology v. 82 (5): p. 1423-1425; 1989 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Virginia; Chrysanthemum; Cultivars; Pest resistance;
 Ostrinia nubilalis; Oviposition; Larvae; Feeding behavior; Insect
 control; Parasites of insect pests; Phaeogenes
 
 Abstract:  Twelve yellow and 12 bronze chrysanthemum,
 Chrysanthemum x morifolium Ramat., cultivars were compared for
 resistance to European corn borer, Ostrinia nubilalis (Hubner).
 Bronze cultivar Grenadine' and yellow cultivars 'Yellow Starlet'
 and Goldmine' showed resistance in oviposition preference
 studies. Grenadine' and yellow cultivars Freedom' and Nuggets' had
 the lowest infestation levels on stem sections. Phaeogenes
 nigridens Wesmael (Hymenoptera: Ichneumonidae), an introduced
 parasite, was collected from the field infestation and is a new
 state record.
 
 
 135                        NAL Call. No.: aSB205.S7S6
 Evaluation of commerical soybean cultivars and advance breeding
 lines for
 non-preference to Heliotis zea.
 Joshi, J.M.; Nobakht, M.
 Ames, Iowa : The Service; 1988 Apr.
 Soybean genetics newsletter - United States Department of
 Agriculture, Agricultural Research Service v. 15: p. 124-126; 1988
 Apr.  Includes
 references.
 
 Language:  English
 
 Descriptors: Maryland; Glycine max; Heliothis zea; Cultivars; Pest
 resistance; Breeding aims; Susceptibility
 
 
 136                            NAL Call. No.: S51.E22
 Evaluation of corn hybrids for resistance to insects.
 Widstrom, N.W.; McMillian, W.W.; Wiseman, B.R.
 Athens, Ga. : The Stations; 1988 Dec.
 Research report - University of Georgia, College of Agriculture,
 Agricultural
 Experiment Stations (565): p. 28-31; 1988 Dec.  Includes
 statistical data.
 
 Language:  English
 
 Descriptors: Georgia; Zea mays; Hybrids; Variety trials; Pest
 resistance; Insects; Husks; Flowering date
 
 
 137                           NAL Call. No.: 420 IN23
 Evaluation of different techniques for screening maize germplasm
 for
 resistance to maize borer Chilo partellus (Swinhoe).
 Singh, J.; Sajjan, S.S.
 New Delhi : Entomological Society of India; 1983 Dec.
 Indian journal of entomology v. 45 (pt.4): p. 424-430; 1983 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Indian punjab; Zea mays; Germplasm; Screening;
 Varieties; Chilo partellus; Crop damage; Pest resistance
 
 
 138                            NAL Call. No.: SB1.J66
 Evaluation of European corn borer resistance in hardy
 chrysanthemum.
 Schultz, P.B.; Coffelt, M.A.
 Washington, D.C. : Horticultural Research Institute; 1988 Mar.
 Journal of environmental horticulture v. 6 (1): p. 15-17; 1988 Mar. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Virginia; Chrysanthemum; Cultivars; Ostrinia
 nubilalis; Pest resistance; Plant breeding; Biological control;
 Insect control
 
 
 139                            NAL Call. No.: S51.E22
 Evaluation of grain sorghum hybrids for resistance to insects.
 Wiseman, B.R.; Duncan, R.R.; Skinner, J.L.
 Athens, Ga. : The Stations; 1989 Feb.
 Research report - University of Georgia, College of Agriculture,
 Agricultural
 Experiment Stations (568): p. 73-74; 1989 Feb.  In series
 analytic: The 1988
 Field Crops Performance Tests: Soybeans, etc. edited by Paul L.
 Raymer, et
 al., issued February 1989.
 
 Language:  English
 
 Descriptors: Georgia; Sorghum bicolor; Variety trials; Hybrids;
 Insect control
 
 
 140                           NAL Call. No.: 421 J822
 Evaluation of J.C. Eldredge popcorn collection for resistance to
 corn earworm, fall armyworm (Lepidoptera: Noctuidae), and
 European corn borer (Lepidoptera:  Pyralidae).
 Wilson, R.L.; Wiseman, B.R.; Reed, G.L.
 Lanham, Md. : Entomological Society of America; 1991 Apr.
 Journal of economic entomology v. 84 (2): p. 693-698; 1991 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Georgia; Iowa; Oregon; Zea mays; Lines; Pest
 resistance; Crop damage; Helicoverpa zea; Ostrinia nubilalis;
 Spodoptera frugiperda; Weight; Developmental stages
 
 Abstract:  Discovery that popcorn (Zea mays L.) PI 340856 was
 resistant to corn earworm (Heliothis zea (Boddie)) led us to
 evaluate 34 additional lines developed by J.C. Eldredge for
 resistance to corn earworm, European corn borer (Ostrinia
 nubilalis (Hubner)), and fall armyworm (Spodoptera frugiperda J.E.
 Smith). The 35 lines were evaluated for corn earworm
 resistance in the field with artificial infestation at Ames, Iowa,
 and Tifton, Ga., and with natural infestation at Hermiston, Oreg.
 None of the lines was better than the resistant check, 'Zapalote
 Chico' (PI 217413), at any of the three locations. Several lines
 had significantly better damage ratings than the susceptible
 checks. A bioassay of these materials for corn
 earworm resistance was run in the laboratory at Ames and Tifton by
 adding dried maize silks to laboratory diets and monitoring insect
 growth and development. Six lines were evaluated as
 resistant at both locations. In the field at Ames, two of these six
 lines were rated resistant to European corn borer. Fall armyworm
 field resistance ratings at Tifton indicated that one line was
 resistant after 7 d, but it was intermediate after 14 d. The J.C.
 Eldredge collection of popcorns provides sources of antibiosis to
 corn earworm and European corn borer and is
 available for use by plant breeders. Corn earworm resistance may be
 enhanced by breeding for husk protection, which may provide an
 environment that will capitalize on the antibiotic factors found in
 the maize silks.
 
 
 141                           NAL Call. No.: 420 IN23
 Evaluation of maize cultivars for resistance to stem borer. Kundu,
 G.G.
 New Delhi : Entomological Society of India; 1985 Sep.
 Indian journal of entomology v. 47 (pt.3): p. 325-327; 1985 Sep. 
 Includes
 statistical data.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Cultivars; Pest resistance; Chilo
 partellus; Sesamia; Busseola fusca
 
 
 142                            NAL Call. No.: 23 AU74
 Evaluation of new aphid resistant annual medics in north-west
 Victoria.
 Amor, R.L.; Quigley, P.E.; Latta, R.A.; Eales, J.W.
 North Ryde, N.S.W. : Academic Press; 1986.
 Journal of the Australian Institute of Agricultural Science v. 52
 (2): p.
 83-86; 1986.  Includes references.
 
 Language:  English
 
 Descriptors: Victoria; Medicago; Cultivars; Acyrthosiphon; Aphis
 craccivora; Sitona; Therioaphis trifolii; Pest resistance; Plant
 breeding; Seed production
 
 
 143                           NAL Call. No.: 421 J822
 Evaluation of selected corn plant introductions for silk-feeding
 resistance to
 corn earworm (Lepidoptera: Noctuidae).
 Wilson, R.L.
 College Park, Md. : Entomological Society of America; 1987 Oct.
 Journal of economic entomology v. 80 (5): p. 1048-1050; 1987 Oct. 
 Includes references.
 
 Language:  English
 
 Descriptors: Iowa; Zea mays; Lines; Heliothis zea; Pest
 resistance; Screening; Plant introduction
 
 
 144                           NAL Call. No.: SB599.C8
 Evaluation of soybean genotypes for field resistance to stink bugs
 in Nigeria.
 Jackai, L.E.N.; Dashiell, K.E.; Bello, L.L.
 Guildford, Eng. : Butterworths; 1988 Feb.
 Crop protection v. 7 (1): p. 48-54; 1988 Feb.  Includes
 references.
 
 Language:  English
 
 Descriptors: Nigeria; Glycine max; Genotypes; Pest resistance;
 Nezara viridula; Piezodorus; Plant damage; Yield losses
 
 
 145                           NAL Call. No.: 500 M697
 Evaluation of soybean plant introductions for resistance to foliar
 feeding
 insects.
 Gary, D.J.; Lambert, L.; Ouzts, J.D.
 Jackson, Miss. : The Academy; 1985.
 Journal of the Mississippi Academy of Sciences v. 30: p. 67-82;
 1985.
 Includes references.
 
 Language:  English
 
 Descriptors: Glycine max; Genotypes; Pest resistance; Evaluation
 
 
 146                           NAL Call. No.: 421 J822
 Evaluation of tropical and subtropical corn lines for resistance to
 second-generation European corn borer (Lepidoptera: Pyralidae).
 Kim, S.K.; Guthrie, W.D.; Hallauer, A.R.; Russell, W.A.;
 Brewbaker, J.L.; Hong, C.S.
 Lanham, Md. : Entomological Society of America; 1989 Aug.
 Journal of economic entomology v. 82 (4): p. 1245-1250; 1989 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Subtropical crops; Tropical crops;
 Germplasm; Inbred lines; Pest resistance; Ostrinia nubilalis
 
 Abstract:  Open-pedigree corn (Zea mays L.) inbred lines with
 tropical (38 lines), subtropical (55 lines), and temperature (27
 lines) origins were evaluated for resistance to second-generation
 European corn borer. Ostrinia nubilalis Hubner. Five plants in each
 plot were infested during anthesis with 10 applications of 50
 larvae or 500 per plant. Relative ratings for resistance were taken
 50-60 d after anthesis based on a nine-point rating scale (1, no
 sheath collar feeding damage to 9, severe damage).
 Differences among mean resistant ratings of the 120 lines were
 significant; higher resistance was associated with lines having
 tropical and subtropical germplasm. Twenty-two lines had
 resistance ratings less than 3.5, and most included either
 tropical or subtropical germplasm. Resistant ratings were
 correlated significantly with days to anthesis and silking and
 plant and ear height. Transfer of the resistant genes from the
 tropical germplasm to temperate germplasm should be done with
 caution because of their sensitivity to photoperiodism.
 
 
 147                           NAL Call. No.: 500 M697
 Evaluation of wild soybean, Glycine soja, for resistance to foliar
 feeding
 insects.
 McKenna, T.; Lambert, L.; Ouzts, J.D.; Kilen, T.C.
 Booneville, Miss. : The Academy; 1988.
 Journal of the Mississippi Academy of Sciences v. 33: p. 17-24;
 1988.
 Includes references.
 
 Language:  English
 
 Descriptors: Glycine max; Genetic resources; Genotypes; Plant
 breeding; Pest resistance; Anticarsia gemmatalis; Heliothis zea;
 Pseudoplusia includens; Spodoptera exigua
 
 
 148                          NAL Call. No.: 64.8 C883
 Evidence for different genes controlling insect resistance in three
 soybean
 genotypes.
 Kilen, T.C.; Lambert, L.
 Madison, Wis. : Crop Science Society of America; 1986 Sep.
 Crop science v. 26 (5): p. 869-871; 1986 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Genotypes; Anticarsia gemmatalis; Genes;
 Pest resistance; Pest control; Germplasm; Crosses
 
 
 149                         NAL Call. No.: 500 AM322A
 Evolutionary biology and genetically engineered crops.
 Gould, F.
 Washington, D.C. : The Institute; 1988.
 BioScience - American Institute of Biological Sciences v. 38 (1):
 p. 26-33; 1988.  Includes references.
 
 Language:  English
 
 Descriptors: Crops; Biological techniques; Genetic engineering;
 Evolution; Integrated pest management; Pest resistance
 
 
 150                          NAL Call. No.: 64.8 C883
 Expression and inheritance of resistance of ELS 6404-160 durum
 wheat to
 Hessian fly.
 Mass, F.B. III; Patterson, F.L.; Foster, J.E.; Ohm, H.W.
 Madison, Wis. : Crop Science Society of America; 1989 Jan.
 Crop science v. 29 (1): p. 23-28; 1989 Jan.  Includes references.
 
 Language:  English
 
 Descriptors: Ethiopia; Triticum durum; Resistance to injurious
 factors; Mayetiola destructor; Biotypes; Gene expression;
 Heritability; Controlling genes; Progeny testing; Temperatures
 
 Abstract:  ELS 6404-160, CI 17647, a durum wheat (Triticum durum
 Desf.) introduction from Ethiopia, was found resistant to several
 biotypes of Hessian fly [Mayetiola destructor (Say)]. Additional
 genes for resistance are needed for breeding wheat for resistance
 to the Hessian fly. Research was conducted on a random plant
 (designated as Selection 5) of ELS 6404-160. Our objectives were to
 determine (i) the number of genes in ELS 6404-160-5
 controlling resistance to biotypes B and D, (ii) if the gene(s) are
 different from known genes effective against biotypes B, D, and L,
 (iii) the pattern of resistance of ELS 6404-160-5 to biotypes
 B,C,D, and L, and (iv) the effectiveness of the
 resistance at three temperature regimes. Test cross progeny and F3
 line analyses, conducted in greenhouses or growth chambers,
 indicated that ELS 6404-160-5 has two genes for resistance which
 are different from other genes known to provide resistance to
 biotypes D and L. Segregation of test cross progeny rows in a three
 segregating to one susceptible ratio following the test cross of
 ELS 6404-160-5 with susceptible D6647 indicated that resistance was
 governed by two genes. The occurrence of
 susceptible test cross progenies in test crosses following
 crosses of ELS 6404-160-5 with genotypes with known genes for
 resistance to biotype D indicated that the genes in ELS
 6404-160-5 were different than those previously described. ELS
 6404-160-5 is resistant to biotypes B, C, D, and L and resistance
 is quite stable to biotype D at three temperatures. The genes from
 ELS 6404-160-5 are designated H14 and H15. Gene H15 is closely
 associated with H9 on chromosome 5A; H14 may be linked to or
 independent of H10, which is on chromosome 5A.
 
 
 151                          NAL Call. No.: 64.8 C883
 Expression and inheritance of resistance of 'Marquillo' wheat to
 Hessian fly
 biotype D.
 Maas, F.B. III; Patterson, F.L.; Foster, J.E.; Hatchett, J.H.
 Madison, Wis. : Crop Science Society of America; 1987 Jan.
 Crop science v. 27 (1): p. 49-52; 1987 Jan.  Includes references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Mayetiola destructor;
 Temperatures; Gene expression; Inheritance; Pest resistance;
 Dominant genes; Biotypes; Biological control; Genetics
 
 
 152                          NAL Call. No.: QL461.I57
 Expression and stability of soybean resistance to agromyzid
 beanflies.
 Chiang, H.S.; Norris, D.M.
 Oxford, Eng. : Pergamon Press; 1985.
 Insect science and its application v. 6 (3): p. 265-270. ill; 1985. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Melanagromyza; Ophiomyia; Pest
 resistance; Expressivity; Stability
 
 
 153                          NAL Call. No.: QH506.U34
 Expression of a Bacillus thuringiensis insecticidal crystal protein
 gene in
 tobacco plants.
 Adang, M.J.; Firoozabady, E.; Klein, J.; DeBoer, D.; Sekar, V.;
 Kemp, J.D.; Murray, E.; Rocheleau, T.A.; Rashka, K.; Staffeld, G.
 New York, N.Y. : Alan R. Liss; 1987.
 UCLA symposia on molecular and cellular biology v. 48: p.
 345-353. ill; 1987.
 In the series analytic: Molecular Strategies for Crop Protection /
 edited by
 Charles J. Arntzen and Clarence Ryan. Proceedings of a Symposium
 held Mar
 30-Apr 6, 1986, Steamboat Springs, Colorado.  Includes
 references.
 
 Language:  English
 
 Descriptors: Nicotiana tabacum; Insect pests; Insect control;
 Biological control; Bacillus thuringiensis; Proteins; Gene
 expression; Crystals; Pest resistance; Larvae
 
 
 154                          NAL Call. No.: SB950.M36
 Factors affecting resistance of rice varieties to planthopper and
 leafhopper pests.
 Saxena, R.C.; Khan, Z.R.
 Andover, Hampshire, U.K. : Intercept; 1989.
 Management and control of invertebrate crop pests / editor, Gordon
 E. Russell.
 p. 59-94. ill; 1989.  Literature review.  Includes references.
 
 Language:  English
 
 Descriptors: Oryza sativa; Screening; Varietal resistance; Crop
 damage; Leafhoppers; Planthoppers; Biotypes; Disease vectors;
 Literature reviews
 
 
 155                         NAL Call. No.: QL461.E532
 Feeding activity of Sitophilus zeamais (Coleoptera: 
 Curculionidae) on
 resistant and susceptible corn genotypes.
 Tipping, P.W.; Rodriguez, J.G.; Poneleit, C.G.; Legg, D.E.
 College Park, Md. : Entomological Society of America; 1986 Jun.
 Environmental entomology v. 15 (3): p. 654-658. ill; 1986 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Genotypes; Sitophilus zeamais; Seeds; Pest
 resistance; Feeding behavior; Pest control
 
 
 156                           NAL Call. No.: 421 J822
 Feeding activity of the maize weevil (Coleoptera: Curculionidae) on
 two dent
 corn lines and some of their mutants.
 Tipping, P.W.; Rodriguez, J.G.; Poneleit, C.G.; Legg, D.E.
 College Park, Md. : Entomological Society of America; 1988 Jun.
 Journal of economic entomology v. 81 (3): p. 830-833. ill; 1988
 Jun.  Includes
 references.
 
 Language:  English
 
 Descriptors: Kentucky; Zea mays; Genotypes; Inbred lines;
 Mutants; Sitophilus zeamais; Feeding behavior; Oviposition
 
 Abstract:  Corn genotypes that naturally differ only in their
 endosperm constitution because of mutation were used to examine the
 feeding and oviposition activities of the maize weevil (MW),
 Sitophilus zeamais Motschulsky. The genotypes were A632
 (resistant to MV) and W64A (susceptible) and their associated
 mutants. Differences in the amounts of shallow and deep feeding by
 MW were found to be consistent within a corn genotypic group with
 genetically identical pericarp tissue, despite quite
 different endosperm types. Oviposition was more highly correlated
 with the number of deep feeding sites in the A632 group and with
 the number of shallow sites in the W64A group. Feeding activity
 appeared to be higher in the W64A group having thefloury-2 and
 opaque-2 mutants, which have higher than normal lysine and
 tryptophan in the endosperm. The waxy and amylose extender
 mutants, which are thought tocontain greater than normal amounts of
 feeding stimulants and deterrents, did not affect feeding activity
 and oviposition. Endosperm characteristics may have influenced the
 texture of the pericarp in some cases.
 
 
 157                         NAL Call. No.: QL461.E532
 Feeding behavior, fecundity, and honeydew production of two
 biotypes of
 greenbug (Homoptera: Aphididae) on resistant and susceptible wheat.
 Ryan, J.D.; Dorschner, K.W.; Girma, M.; Johnson, R.C.; Eikenbary,
 R.D.
 College Park, Md. : Entomological Society of America; 1987 Jun.
 Environmental entomology v. 16 (3): p. 757-763; 1987 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Oklahoma; Triticum aestivum; Genotypes; Schizaphis
 graminum; Biotypes; Feeding behavior; Pest resistance; Fecundity;
 Honeydew; Plant damage
 
 
 158                           NAL Call. No.: 420 F662
 Feeding responses of fall armyworm larvae on excised green and
 yellow whorl
 tissue of resistant and susceptible corn. Wiseman, B.R.;
 Isenhour, D.J.
 Gainesville, Fla. : Florida Entomological Society; 1988 Sep.
 Florida entomologist v. 71 (3): p. 243-249. ill; 1988 Sep.  Paper
 presented at
 the "Fall Armyworm Symposium", 1988.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Tissues; Susceptibility; Pest resistance;
 Spodoptera frugiperda; Larvae; Feeding behavior
 
 
 159                           NAL Call. No.: 59.8 M45
 Field and laboratory evaluation of selected maize plant
 introductions for corn
 earworm responses at two locations.
 Wilson, R.L.; Wiseman, B.R.
 Bergamo : Istituto sperimentale per la cerealicoltura; 1988.
 Maydica v. 33 (3): p. 179-187; 1988.  Includes references.
 
 Language:  English
 
 Descriptors: Georgia; Iowa; Zea mays; Plant introduction; Lines;
 Pest resistance; Heliothis zea; Germplasm; Selection criteria;
 Selection methods; Performance testing; Larvae; Diets; Bioassays;
 Growth rate
 
 
 160                          NAL Call. No.: 64.8 C883
 Field evaluation of glanded and glandless cotton (Gossypium
 hirsutum L.) lines
 for boll weevil (Anthonomus grandis Boh.) susceptibility.
 Jenkins, J.N.; Maxwell, F.G.; Parrott, W.L.
 Madison, Wis. : Crop Science Society of America; 1967 Sep.
 Crop science v. 7 (5): p. 437-440; 1967 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Genotypes; Plant glands; Pest
 resistance; Anthonomus grandis
 
 
 161                          NAL Call. No.: 64.8 C883
 Field evaluation of soybean for Mexican bean beetle resistance. II.
 Maturity
 groups III, IV, and V.
 Kraemer, M.E.; Rangappa, M.; Mebrahtu, T.; Benepal, P.S. Madison,
 Wis. : Crop Science Society of America; 1990 Mar15. Crop science v.
 30 (2): p. 374-377; 1990 Mar15.  Includes
 references.
 
 Language:  English
 
 Descriptors: Virginia; Glycine max; Pest resistance; Defoliation;
 Epilachna varivestis; Screening tests; Germplasm; Maturity
 groups; Plant introduction; Lines
 
 Abstract:  Field screening of soybean, Glycine max (L.) Merr.,
 germplasm for resistance to insect defoliation was undertaken
 because of the narrow genetic base currently available to plant
 breeders and the lack of a comprehensive screening for resistance
 in most maturity groups (MGs). This study was conducted to
 evaluate plant introductions (PIs) in MGs III, IV, and V for
 resistance to defoliation by Mexican bean beetle (MBB), Epilachna
 varivestis Mulsant. All available PIs were screened to 475822C,
 476914, and 424553 in MGs III, IV, and V, respectively, at the
 Randolph Research Farm of Virginia State University, Petersburg,
 VA. Resistance was determined by visually estimating the percent
 defoliation by MBB. Soybean accessions were initially screened in
 2-m rows. Selections from these screenings were twice retested in
 triplicate. Maturity Group V contained most of the resistant
 germplasm, including PIs 423901-1, 417235 ('Ouu 3'), and 200450
 ('Akita Ahi'). However, two breeding lines (L76-0132 and
 L76-0049), derived from the highly resistant PI 171451 in MG VII,
 had the least defoliation in MG V. Three moderately resistant PIs
 (360847 ['Shiromeyntaka'], 248511 ['Hakuho No. 1'], and 407820)
 were found in MG IV. PI 417152 ('Mikuri 42') (MG III) also showed
 some resistance. Higher levels of insect resistance appear to be
 present in later maturity group soybean germplasm.
 
 
 162                          NAL Call. No.: 64.8 C883
 Field evaluation of soybeans for Mexican bean beetle resistance. I.
 Maturity
 groups VI, VII, and VIII.
 Kraemer, M.E.; Rangappa, M.; Benepal, P.S.; Mebrahtu, T.
 Madison, Wis. : Crop Science Society of America; 1988 May.
 Crop science v. 28 (3): p. 497-499; 1988 May.  Includes
 references.
 
 Language:  English
 
 Descriptors: Virginia; Glycine max; Epilachna varivestis;
 Cultivars; Insect pests; Pest resistance; Breeding programs; Field
 tests
 
 
 163                            NAL Call. No.: 8 P832J
 Field evaluations of pigeon pea genotypes for resistance against
 pod borers.
 Armstrong, A.M.
 Rio Piedras, R.R. : University of Puerto Rico, Agricultural
 Experiment
 Station; 1991 Jan.
 The Journal of agriculture of the University of Puerto Rico v. 75
 (1): p.
 73-79; 1991 Jan.  Includes references.
 
 Language:  English
 
 Descriptors: Puerto Rico; Pisum sativum; Cultivars; Genotypes;
 Lines; Pest resistance; Pods; Boring insects; Crop damage;
 Etiella zinckenella; Heliothis virescens; Field tests
 
 
 164                           NAL Call. No.: SB249.N6
 Field performance of some new cotton strains with resistance to
 Heliothis spp.
 Jones, J.E.; Burris, E.; Caldwell, W.D.; Marshall, J.G.; Dickson,
 J.I.; Clower, D.F.
 Memphis, Tenn. : National Cotton Council and The Cotton
 Foundation; 1987.
 Proceedings - Beltwide Cotton Production Research Conferences. p.
 94-96; 1987.
  Includes references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Strains; Resistance to injurious
 factors; Heliothis; Agronomic characteristics; Breeding methods;
 Germplasm releases
 
 
 165                           NAL Call. No.: SB599.C8
 Field resistance in three bread wheat lines to the Russian wheat
 aphid, Diuraphis noxia (Hemiptera: Aphididae).
 Du Toit, F.
 Guildford : Butterworths; 1990 Aug.
 Crop protection v. 9 (4): p. 255-258; 1990 Aug.  Includes
 references.
 
 Language:  English
 
 Descriptors: South Africa; Triticum aestivum; Lines; Cultivars;
 Pest resistance; Varietal susceptibility; Hemiptera; Plant
 damage; Crop growth stage; Seedlings; Maturity stage; Greenhouse
 experimentation; Field experimentation; Symptoms
 
 
 166                       NAL Call. No.:  SB351.C45I52
 Field screening of chickpea genotypes for resistance to Heliothis
 armigera.
 Lateef, S.S.; Bhagwat, V.R.; Reed, W.
 Patancheru : International Crops Research Institute; 1985 Dec.
 International chickpea newsletter (13): p. 29-32; 1985 Dec. 
 Includes
 statistical data.
 
 Language:  English
 
 Descriptors: Andhra pradesh; Cicer arietinum; Genotypes;
 Heliothis armigera; Pest resistance; Screening; Crop damage
 
 
 167                          NAL Call. No.: QL461.I57
 Field screening of pearl millet cultivars in relation to insects
 and diseases.
 Gahukar, R.T.
 Nairobi, Kenya : ICIPE Science Press; 1990.
 Insect science and its application v. 11 (1): p. 13-19; 1990. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sahel; Pennisetum americanum; Coniesta ignefusalis;
 Heliocheilus albipunctella; Tolyposporium penicillariae; Pest
 resistance; Disease resistance; Cultivars; Screening
 
 Abstract:  Thirty-five pearl millet cultivars of short, medium and
 long maturity cycle were screened in Senegal during 1985-1986 crop
 seasons to study field reaction to the attack of stalk borer,
 Coniesta (Acigona) ignefusalis Hmps.; spike worm,
 Heliocheilus (Raghuva) albipunctella De Joannis; millet midge,
 Geromyia penniseti Felt; head smut, Tolysporium penicillariae Bref;
 and ergot, Claviceps fusiformis Lov. Insect and disease incidence
 varied considerably depending upon cultivar maturity cycle. Least
 susceptible cultivars were IBV-8001 and P8 against spike worm;
 Zalla, NKK, P8 and M2D2 against head smut, and Ex-Darou against
 ergot Cultivation of IBV-8001 has been suggested in northern and
 central Senegal. However, studies on identification and utilization
 of resistance sources of wide genetic diversity and multilocational
 tests may be necessary.
 
 
 168                           NAL Call. No.: 421 J822
 Field screening sorghum for resistance to sorghum midge (Diptera:
 Cecidomyiidae).
 Sharma, H.C.; Vidyasagar, P.; Leuschner, K.
 Lanham, Md. : Entomological Society of America; 1988 Feb.
 Journal of economic entomology v. 81 (1): p. 327-334; 1988 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Andhra pradesh; India; Sorghum bicolor; Cultivars;
 Pest resistance; Screening; Contarinia sorghicola; Sprinkler
 irrigation
 
 Abstract:  Various techniques to increase infestation and improve
 efficiency of screening sorghum for sorghum midge, Contarinia
 sorghicola (Coquillett), resistance were tested at ICRISAT
 Center. Adjustment of planting dates to synchronize flowering with
 period of peak abundance of adult midges, planting infester rows of
 susceptible cultivars ('CSH 1' and 'CSH 5') 20 d before test
 cultivars, spreading midge-damaged sorghum panicles
 containing diapausing midge larvae in infester rows, and using
 sprinkler irrigation during flowering in the postrainy season
 helped to increase midge abundance. Careful and selective use of
 contact insecticides to control head bug, Calocoris angustatus
 Lethiery, and midge parasite Tetrastichus diplosidis Crawther was
 useful in screening and selecting sorghum cultivars for midge
 resistance. Planting two sets of test material at fortnightly
 intervals helped to reduce chances that sorghum would escape midge
 damage. Maintaining thin plant stands also increased midge damage
 by preventing population dilution due to fewer numbers of panicles
 per unit area.
 
 
 169                         NAL Call. No.: QL461.E532
 Foliage consumption and development of the fall armyworm
 (Lepidoptera:  Noctuidae) as affected by the interactions of a
 parasitoid, Campoletis
 sonorensis (Hymenoptera: Ichneumonidae), and resistant corn
 genotypes.
 Isenhour, D.J.; Wiseman, B.R.
 College Park, Md. : Entomological Society of America; 1987 Oct.
 Environmental entomology v. 16 (5): p. 1181-1184; 1987 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Georgia; Zea mays; Genotypes; Spodoptera frugiperda;
 Campoletis sonorensis; Pest resistance; Feeding; Behavior;
 Parasites of insect pests; Development
 
 
 170                           NAL Call. No.: 421 J822
 Foliage consumption and developmental parameters of the soybean
 looper and the
 velvetbean caterpillar (Lepidoptera: Noctuidae) reared on
 susceptible and
 resistant soybean genotypes.
 Beach, R.M.; Todd, J.W. Lanham, Md. : Entomological Society of
 America; 1988 Feb.
 Journal of economic entomology v. 81 (1): p. 310-316; 1988 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Georgia; Glycine max; Cultivars; Genotypes; Pest
 resistance; Anticarsia gemmatalis; Pseudoplusia includens
 
 Abstract:  Larvae of the soybean looper (SBL), Pseudoplusia
 includens (Walker), and the velvetbean caterpillar (VBC),
 Anticarsia gemmatalis Hubner, were restricted to a diet of
 foliage from either insect-resistant (PI 229358 or GatIR 81-296) or
 susceptible ('GaSoy 17') soybean genotypes. Decreased growth rate
 and increased development times were observed for early and late
 instar SBL developing on the resistant genotypes. Foliage
 consumption and weight gain measured during the period from the
 fifth through the ultimate stadium were also significantly
 reduced. Mortality of SBL larvae was greatest on GatIR 81-296.
 Although early growth and development of VBC during early stadia
 were slowed by the resistant genotypes, consumption, weight gain,
 and growth rates from the fifth through the ultimate stadium on the
 resistant genotypes were equal to or greater than those on the
 susceptible genotype. Larval weights of both SBL and VBC taken
 after five and eight days of development gave an accurate and time-
 efficient measurement of resistance. Pupal weights were
 significantly lower when SBL were reared on resistant genotypes;
 however, VBC pupal weights were similar on all three genotypes. An
 increased incidence of supernumerary stadia was noted in larvae of
 both species restricted to resistant genotypes.
 
 
 171                          NAL Call. No.: 421 EN835
 Foliage consumption and larval development of parasitized and
 unparasitized
 soybean looper, Pseudoplusia includens (Lepidoptera: Noctuidae),
 reared on a resistant soybean genotype and effects on an
 associated
 parasitoid, Copidosoma
 truncatellum (Hymenoptera: Encyrtidae).
 Beach, R.M.; Todd, J.W.
 Paris : Lavoisier Abonnements; 1986.
 Entomophaga v. 31 (3): p. 237-242; 1986.  Includes references.
 
 Language:  English
 
 Descriptors: Georgia; Glycine max; Cultivars; Crop damage;
 Genotypes; Pseudoplusia includens; Biological control; Copidosoma
 truncatellum; Parasites of insect pests; Varietal susceptibility
 
 
 172                          NAL Call. No.: 450 P5622
 Free amino acids in the phloem sap from oats and barley resistant
 to
 Rhopalosiphum padi.
 Weibull, J.H.W.
 Oxford : Pergamon Press; 1988.
 Phytochemistry v. 27 (7): p. 2069-2072; 1988.  Includes
 references.
 
 Language:  English
 
 Descriptors: Hordeum; Avena; Rhopalosiphum padi; Phloem; Sap; Amino
 acids; Pest resistance; Cultivars
 
 
 173                   NAL Call. No.: 1
 Ag84Te no.1004
 Further differentiation of genetic factors in wheat for
 resistance to the
 Hessian fly.
 Suneson, Coit A.; Noble, W. B.
 Washington : U.S. Dept. of Agriculture; 1950; A 1.36-1004.
 8 p. ; 23 cm. (Technical bulletin / United States Department of
 Agriculture ; no. 1004).  Caption title.  Literature cited: p. 7-8.
 
 Language:  English
 
 Descriptors: Wheat--Disease and pest resistance; Hessian flies
 
 
 174                          NAL Call. No.: 64.8 C883
 Gene H16 in wheat for resistance to Hessian fly.
 Patterson, F.L.; Foster, J.E.; Ohm, H.W.
 Madison, Wis. : Crop Science Society of America; 1988 Jul. Crop
 science v. 28 (4): p. 652-654; 1988 Jul.  Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum durum; Mayetiola destructor; Biotypes; Insect
 pests; Pest resistance; Genes; Genetic transformation; Backcrossing
 
 Abstract:  PI 94587 durum wheat, Triticum durum Desf., has
 resistance to biotype L of Hessian fly, Mayetiola destructor (Say)
 that has not been genetically characterized. Two genes, H6 and H11
 from PI 94587, have been transferred into separate lines and
 characterized previously. Lines with H6 or H11 do not have
 resistance to biotype L that PI 94587 has. Our objectives were to
 transfer the gene(s) responsible for resistance to biotype L from
 PI 94587 to a susceptible line, and to determine if the gene(s) was
 different from known genes providing resistance to biotype L. We
 used standard greenhouse and growth chamber methods of
 analysis to determine resistance of seedling progenies to
 biotypes D and L of Hessian fly. A single partially dominant gene
 pair providing resistance to biotype L was transferred from PI94
 587 to a previously susceptible durum wheat line ND D6647.
 Genetic studies indicated the new gene was not H9, H14, or H15.
 Reactions to biotypes, B, C, D, and L indicated it was not H10, or
 the 'Marquillo' gene. The newly isolated gene is designated H16.
 
 
 175                           NAL Call. No.: 421 J822
 Generation mean analysis for resistance in maize to the corn leaf
 aphid
 (Homoptera: Aphididae).
 Bing, J.W.; Guthrie, W.D.
 Lanham, Md. : Entomological Society of America; 1991 Jun.
 Journal of economic entomology v. 84 (3): p. 1080-1082; 1991 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Crosses; Genetic effects; Genotypes; Pest
 resistance; Rhopalosiphum maidis
 
 Abstract:  Corn leaf aphids [Rhopalosiphum maidis (Fitch)] can be
 a serious pest of maize, Zea mays L. Because very, little is known
 about the genetics of corn leaf aphid resistance in maize, a
 generation mean analysis was conducted on nine generations of maize
 [P1, B96 (susceptible); P2, Mo17 (resistant); F1; F2; F3; BC1; BC2;
 BS1; and BS2] to determine the type of gene action involved. The
 model that included additive and dominant effects explained 64.8%
 of the total variation among generations, whereas the model that
 included additive, dominant, and epistatic effects did not
 significantly improve the fit. The estimate of the
 additive genetic effects was most important, indicating that
 several loci contributed resistance to the corn leaf aphid.
 Dominant genetic effects were significant, but not as important as
 additive effects. Residuals remaining after fitting for
 additive and dominance effects were significant, indicating that
 more complicated genetic mechanisms may be involved.
 
 
 176                        NAL Call. No.: SB351.P3P39
 Genetic analysis of trichome characters associated with
 resistance to jassid
 (Empoasca kerri Pruthi) in peanut.
 Dwivedi, S.L.; Amin, P.W.; Rasheedunisa; Nigam, S.N.;
 Nagabhushanam, G.V.S.; Rao, V.R.; Gibbons, R.W.
 Raleigh : American Peanut Research and Education Society; 1986 Jan.
 Peanut science v. 13 (1): p. 15-18; 1986 Jan.  Includes
 references.
 
 Language:  English
 
 Descriptors: Arachis hypogaea; F1 hybrids; Diallel crossing; Insect
 pests; Resistance; Empoasca; Trichomes; Inheritance; Genetic
 variance; General combining ability; Breeding programs
 
 
 177                          NAL Call. No.: 100 AR42F
 Genetic and biological pest control in cotton and soybean.
 Bourland, F.M.; Caviness, C.E.
 Fayetteville, Ark. : The Station; 1990 May.
 Arkansas farm research - Arkansas Agricultural Experiment Station
 v. 39 (3):  p. 7. ill; 1990 May.
 
 Language:  English
 
 Descriptors: Gossypium; Glycine max; Insects; Biological control;
 Genetic control; Breeding aims; Resistance
 
 
 178                          NAL Call. No.: QL461.I57
 Genetic divergence for resistance to shootfly, Atherigona soccata
 Rond. in
 sorghum, Sorghum bicolor (L.) Moench and its relationship with
 heterosis.
 Omori, T.; Agrawal, B.L.; House, L.R.
 Oxford : Pergamon Press; 1988.
 Insect science and its application v. 9 (4): p. 483-488; 1988. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Cultivars; Atherigona soccata; Pest
 resistance; Genetic variation; Provenance; Heterosis; Taxonomy;
 Trichomes; Genetic distance
 
 
 179                    NAL Call. No.:  SB191.W5I5 1988
 Genetic diversity in wheat relatives for disease and insect
 resistance.
 Raupp, W.J.; Gill, B.S.; Browder, L.E.; Harvey, T.L.; Hatchett,
 J.H.; Wilson, D.L.
 Cambridge : Published by the Institute of Plant Science Research,
 Cambridge
 Laboratory; 1988.
 Proceedings of the Seventh International Wheat Genetics Symposium
 / edited by
 T.E. Miller and R.M.D. Koebner. p. 879-884; 1988.  Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum; Species; Aegilops squarrosa; Germplasm;
 Evaluation; Resistance; Puccinia recondita; Mayetiola destructor;
 Schizaphis graminum
 
 
 180                       NAL Call. No.:  SB123.57.L93
 Genetic engineering of crops for insect resistance using genes of
 plant
 origin.
 Hilder, V.A.; Gatehouse, A.M.R.; Boulter, D.
 Boston : Butterworths; 1990.
 Genetic engineering in crop plants / edited by G.W. Lycett, D.
 Grierson. p.
 51-66. ill; 1990.  Paper presented at the "49th Nottingham Easter
 School in
 Agricultural Science on Agricultural Engineering of Crop Plants,"
 April 17-21, Sutton Bonington, United Kingdom.  Includes
 references.
 
 Language:  English
 
 Descriptors: Crops; Genetic engineering; Breeding aims;
 Resistance; Insect pests
 
 
 181                          NAL Call. No.: 100 L9333
 Genetic enhancement of pest resistant cotton germplasm 1988. Jones,
 J.E.; Caldwell, W.D.; Micinski, S.; Holoubek, B.B.;
 Dickson, J.I.; Aguillard, W.
 Bossier City, La. : The Station; 1989-1990.
 Annual research report - Red River Research Station. p. 28-35;
 1989-1990.
 
 Language:  English
 
 Descriptors: Louisiana; Gossypium; Breeding; Programs; Pest
 resistance; Insect pests
 
 
 182                           NAL Call. No.: 421 J822
 Genetic evaluation for resistance to rice thrips (Thysanoptera:
 Thripidae) in
 leafhopper- and planthopper-resistant rice varieties.
 Velusamy, R.; Saxena, R.C.
 Lanham, Md. : Entomological Society of America; 1991 Apr.
 Journal of economic entomology v. 84 (2): p. 664-668; 1991 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Oryza sativa; Varietal resistance; Crop damage;
 Cultivars; Genetic analysis; Nephotettix virescens; Nilaparvata
 lugens; Sogatella furcifera; Fecundity; Oviposition; Population
 growth; Survival
 
 Abstract:  Resistance to rice thrips, Stenchaetothrips biformis
 (Bagnall), was evaluated in rice, Oryza sativa L., varieties
 possessing diverse genes for resistance to the green leafhopper
 Nephotettix virescens (Distant), and planthoppers Sogatella
 furcifera (Horvath) and Nilaparvata lugens (Stal). Distinct
 differences in levels of thrips resistance were observed in bulk
 seedling tests. Resistant varieties were less preferred for
 oviposition. Duration of adult survival and population increases
 was significantly less on resistant varieties than on susceptible
 ones. The steam distillate extract of a resistant variety 'Ptb 21'
 was highly toxic to first instar S. biformis.
 
 
 183                          NAL Call. No.: HT401.S72
 Genetic improvement of alfalfa for resistance to the alfalfa
 weevil.
 Panton, C.A.
 Mississippi State, Miss. : The Center; 1987 May.
 SRDC series - Southern Rural Development Center (92): p. 103-104;
 1987 May.
 
 Language:  English
 
 Descriptors: Alfalfa; Breeding programs; Pest resistance;
 Coleoptera
 
 
 184                           NAL Call. No.: 421 J822
 Genetic resistance of tropical corn inbreds to second-generation
 European corn
 borer (Lepidoptera: Pyralidae).
 Kim, S.K.; Hallauer, A.R.; Guthrie, W.D.; Barry, D.; Lamkey, K.R.;
 Hong, C.S.
 Lanham, Md. : Entomological Society of America; 1989 Aug.
 Journal of economic entomology v. 82 (4): p. 1207-1211; 1989 Aug. 
 Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Diallel crossing; Inbred lines; Pest
 resistance; Ostrinia nubilalis
 
 Abstract:  Diallel crosses among five resistant (Tz14, Narino330,
 Hi34, Hi29, Ant.C5) and four susceptible (Hi32, Tx601, B73, Oh43)
 maize, Zea mays L., inbreds were used to determine the genetic
 control of resistance to damage by second-generation European corn
 borer, Ostrinia nubilalis Hubner. The nine parents and their 36
 crosses each received 10 applications of 50 larvae (500 larvae per
 plant). Six replications of five plants per plot were
 infested at anthesis. Visual ratings were taken of sheath and
 collar tissue 50 to 60 d after infestation based on a nine-point
 rating scale (1, no damage to 9, severe damage). Significant
 differences for resistance were observed among the nine parents and
 the 36 crosses. Ratings of individual crosses varied
 significantly and averaged 3.7 with range of 1.8 (Tzi4 x
 Narino330) to 5.3 (B73 x Oh43). Heterotic effects for resistance of
 the 36 crosses averaged -19.5%, which was equivalent to a
 difference of 1.78 on the rating scale. General (GCA) and
 specific combining ability (SCA) mean squares were significant with
 GCA accounting for 82 and SCA for 18% of the total variation among
 crosses. Among the nine parents, four (Tzi4, Narino330, Hi34,
 Ant.C5) showed greater GCA effects for resistance.
 
 
 185                          NAL Call. No.: 64.8 C883
 Genetic resistance to boll weevil oviposition in primitive
 control.
 McCarty, J.C. Jr; Jenkins, J.N.; Parrott, W.L.
 Madison, Wis. : Crop Science Society of America; 1987 Mar.
 Crop science v. 27 (2): p. 263-264; 1987 Mar.  Includes
 references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Resistance to parasites;
 Anthonomus grandis; Oviposition; Photoperiodism; Progeny testing;
 Backcrossing
 
 Abstract:  Boll weevil (Anthonomus grandis Boheman) resistance was
 identified in several photoperiodic primitive accessions of cotton
 (Gossypium hirsutum L.) in the early 1970s. Two of these primitive
 accessions. T-326, and T-1180, were each crossed to 'Deltapine 16'
 and progeny with day-neutral (DN) flowering habit were selected.
 These progeny were then backcrossed twice to their respective
 primitive parent and selected for day neutrality after each
 backcross. The resulting progenies were evaluated for boll weevil
 oviposition using a new laboratory technique.
 Significantly less oviposition was found on BC2F4 progeny of
 T-326(DN) and T-1180(DN) than on the control 'Stoneville 213'.
 These progeny expressed resistance as 57 and 54% as much
 oviposition, respectively, as on Stoneville 213 in the laboratory
 test; resistance also was noted by others in field tests. The level
 of boll weevil resistance found in the progenies of
 T-326(DN) and T-1180(DN), when combined with acceptable agronomic
 performance, should be of value in pest management.
 
 
 186                            NAL Call. No.: 450 C16
 Genetic sources of resistance to blackbird predation in
 sunflower.
 Parfitt, D.E.; Fox, G.J.
 Ottawa : Agricultural Institute of Canada; 1986 Jan.
 Canadian journal of plant science; Revue canadienne de
 phytotechnie v. 66 (1):  p. 19-23; 1986 Jan.  Includes
 references.
 
 Language:  English
 
 Descriptors: Helianthus annuus; Blackbirds; Pest resistance;
 Genetic factors; Heritability
 
 
 187                          NAL Call. No.: QL461.I57
 Genetic variation of stem-borer resistance and tolerance in three
 sorghum
 crosses.
 Pathak, R.S.
 Oxford, Eng. : Pergamon Press; 1985.
 Insect science and its application v. 6 (3): p. 359-364; 1985. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum; Chilo partellus; Pest resistance;
 Tolerances; Heritability; Genetic variation; Selective advantage;
 Selective breeding; Plant damage
 
 
 188                          NAL Call. No.: 64.8 C883
 Genetics of antibiosis resistance to Mexican bean beetle in
 soybean.
 Rufener, G.K. II; St Martin, S.K.; Cooper, R.L.; Hammond, R.B.
 Madison, Wis. : Crop Science Society of America; 1989 May.
 Crop science v. 29 (3): p. 618-622; 1989 May.  Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Pest resistance; Inheritance; Epilachna
 varivestis; Crosses; Generations; Progeny testing; Heritability;
 Genetic gain; Controlling genes
 
 Abstract:  A larval antibiosis screening technique was applied to
 three soybean [Glycine max (L.) Merr.] populations to determine the
 inheritance of resistance to Mexican bean beetle [Epilachna
 varivestis (Mulsant)]. The F1, F2, and F3 generations (five F3
 plants per F2 plant) of crosses between 'Williams' (susceptible)
 and L76-0049, L78-608, and L76-0328 (resistant) were screened along
 with the parents. Mean weight of surviving larvae after 10 d of
 feeding on detached leaves was used as the measure of
 antibiosis. The resistance of F1 plants was intermediate to that of
 their parents. Data from the F1 of Williams X L76-0049 and Williams
 X L76-0328 indicated a small degree of dominance for resistance.
 The distributions of F2 and F3 phenotypes were
 continuous and unimodal. Skewness toward susceptibility occurred in
 Williams X L76-0328, but symmetry was evident in the other crosses.
 Heritability estimates (single F2 plant basis) ranged from 0.33 to
 0.48 when calculated from F3 data, and from 0.11 to 0.22 when
 calculated from the covariance of F2 plants and their F3 progeny.
 Estimates of heritability derived from F2 and
 parental data were larger but had large standard errors. Gene
 number estimates by the method of moments, and frequency of
 recovery of parental phenotypes suggested that the number of
 segregating resistance loci was small. Provided selection was no
 more intense than 2.5%, expected genetic gain from selection among
 individual F2 plants was greater if a large number of plants were
 screened with a single determination per plant than if one-half or
 one-third that number were screened with two or three
 determinations per plant, respectively.
 
 
 189                         NAL Call. No.: QL483.I4J6
 Genetics of ovipositional non-preference and dead-heart formation
 governing
 shootfly resistance in sorghum.
 Sharma, G.C.; Rana, B.S.
 New Delhi : Malhotra Publishing House; 1985 Jun.
 Journal of entomological research v. 9 (1): p. 104-105; 1985 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum; Atherigona soccata; Pest resistance;
 Recessive genes; Segregation; Oviposition; Progeny testing
 
 
 190                           NAL Call. No.: 421 J822
 Genetics of resistance in maize to a complex of three species of
 thrips
 (Thysanoptera: Thripidae).
 Bing, J.W.; Dicke, F.F.; Guthrie, W.D.
 Lanham, Md. : Entomological Society of America; 1990 Apr.
 Journal of economic entomology v. 83 (2): p. 621-624; 1990 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Iowa; Zea mays; Combining ability; Diallel analysis;
 Inbred lines; Pest resistance; Crop damage; Frankliniella;
 Frankliniella fusca; Thrips; Population dynamics
 
 Abstract:  During summer 1988, a heavy infestation of thrips,
 Anaphothrips obscurus (Mueller), Frankliniella fusca (Hinds), and
 F. tenuicornis (Uzel) occurred on maize, Zea mays L., allowing for
 evaluation of resistance in 10 inbred maize lines. Thrips
 populations peaked at the end of June, and evaluations of the
 damage were taken at this time. Inbred 41:2504B had the smallest
 thrips Population, B37 had the largest population, and Mol7, C103,
 and B73 were intermediate. A 10-inbred-line diallel cross, based on
 damage caused by leaf-feeding, showed that variations due to
 general combining ability (GCA) and specific combining ability
 (SCA) were highly significant. Variation due to GCA, however, was
 14 times greater than that for SCA, indicating that additive
 genetic effects were more important than nonadditive effects. The
 inbred 41:2504B was the most resistant and best general combiner,
 whereas C103 was the most susceptible to thrips damage.
 
 
 191                          NAL Call. No.: 64.8 C883
 Genetics of resistance of PI 422297 durum wheat to the Hessian fly.
 Obanni, M.; Ohm, H.W.; Foster, J.E.; Patterson, F.L.
 Madison, Wis. : Crop Science Society of America; 1989 Mar.
 Crop science v. 29 (2): p. 249-252; 1989 Mar.  Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum durum; Pest resistance; Mayetiola
 destructor; Biotypes; Controlling genes; Gene expression;
 Linkage; Allelism
 
 Abstract:  The durum wheat (Triticum durum Desf.) PI 422297 was
 selected for genetic studies because of its resistance to
 Biotypes B, C, D, and L of the Hessian fly, Mayetiola destructor
 (Say). The objectives of this study were to determine the number of
 genes controlling the resistance of PI 422297 to Biotype D, and to
 establish the allelic relationships or independence of these genes
 to currently known genes that confer resistance against this
 biotype. This experiment was conducted in a
 controlled environment chamber maintained at 19 +/- 2 degrees C. In
 testcross analyses, random selfed BC progeny rows between the
 susceptible parent D6647 and PI 422297 indicated that two genes
 controlled the expression of this resistance; these two genes are
 independent of H5, H9, H10, H14, H15, and H17. No fully
 susceptible progeny rows were observed in the crosses involving H11
 and H16 together, or H16 singly, with the two genes in PI 422297.
 However, the level of resistance of the PI 422297 genes at 26
 degrees C indicates that a linkage or allelic relationship is
 involved between one gene in PI 422297 and H16. Therefore, one of
 the two genes in PI 422297 is different from all previously known
 genes for resistance to Biotype D. We designate this gene as H19.
 The other gene is associated with H16. Additional
 research is planned to determine whether the second gene of PI
 422297 that confers resistance to biotype D of Hessian fly is
 allelic or linked to H16.
 
 
 192                         NAL Call. No.: QL461.E532
 Glossy leaf wax and plant resistance to insects in Brassica
 oleracea under
 natural infestation.
 Stoner, K.A.
 Lanham, Md. : Entomological Society of America; 1990 Jun.
 Environmental entomology v. 19 (3): p. 730-739; 1990 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Brassica oleracea; Artogeia rapae; Brevicoryne
 brassicae; Plutella xylostella; Phyllotreta; Cruciferae; Leaves;
 Pest resistance; Genetics; Waxes; Line differences
 
 Abstract:  The glossy cauliflower PI234599 has been shown by other
 authors to have resistance to three species of Lepidoptera, but the
 relationship between insect resistance and the glossiness of the
 leaf surface has been unclear. To examine this
 relationship in a broader range of Brassica oleracea L., five
 species of insect pests were counted under natural infestation
 eight glossy genetic lines of broccoli, cauliflower, brussels
 sprouts, collards, and kale; six lines reported to have reduced
 leaf wax; and ten varieties of the same crops with normal leaf wax.
 Glossy lines consistently had fewer imported cabbageworm, Artogeia
 rapae (L.), larvae and eggs and fewer cabbage aphids, Brevicoryne
 brassicae (L.), than other lines. Four of the glossy lines had low
 numbers of diamondback moth larvae, Plutella
 xylostella (L.), in all three plantings, but the other four
 performed differently in separate plantings. Surprisingly, a glossy
 kale with allelic genes for glossiness to PI234599 had poor
 resistance to diamondback moth. Glossy lines had the most
 Phyllotreta cruciferae (Goeze) in one spring planting, but there
 were no significant differences in the numbers of this species of
 flea beetle on various lines in the fall planting at the same
 location. This study identifies additional promising sources of
 insect resistance among glossy lines of B. oleracea, but further
 study is needed of the variability in resistance to diamondback
 moths and flea beetles over repeated plantings and among
 different glossy lines.
 
 
 193                        NAL Call. No.: aSB205.S7S6
 Glycine soja--a source of resistance for Bihar hairy caterpillar
 Spilosoma
 (Diacrisia) obliqua Wallace, in soybean.
 Ram, H.H.; Pushpendra; Singh, K.; Ranjit
 Ames, Iowa : The Service; 1989 Apr.
 Soybean genetics newsletter - U.S. Department of Agriculture,
 Agricultural
 Research Service v. 16: p. 52-53; 1989 Apr.  Includes references.
 
 Language:  English
 
 Descriptors: Glycine soja; Glycine max; Spilosoma obliqua; Lines;
 Crosses; Pest resistance; Genetic resistance; Inheritance
 
 
 194                          NAL Call. No.: 64.8 C883
 Grain sorghum resistance to midge by yield loss vs. visual
 scores.
 Peterson, G.C.; Ali, A.E.B.; Teetes, G.L.; Jones, J.W.; Schaefer,
 K.
 Madison, Wis. : Crop Science Society of America; 1989 Sep.
 Crop science v. 29 (5): p. 1136-1140; 1989 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Cultivars; Pest resistance;
 Contarinia sorghicola; Plant damage; Rating scales; Crop yield;
 Yield losses; Plant progeny testing; Assessment
 
 Abstract:  Biology of the sorghum midge, Contarinia sorghicola
 (Coquillett), necessitates testing of sorghum, Sorghum bicolor (L.)
 Moench, cultivars in field plots in multiple locations and/or years
 to identify resistant genotypes. Using converted exotic sorghum
 cultivars, this study was conducted to compare visual damage scores
 across locations and years vs. indirect resistance measurements
 (percentage yield loss and number of midge per panicle) in a single
 location and year with two
 planting dates. Visual damage ratings were made at physiological
 maturity on the percentage of blasted kernels per panicle in
 replicated, randomized-complete-block field experiments at three
 locations in 1983 through 1985. In 1985, indirect measurements and
 visual damage ratings were made at one location. A
 significant positive relationship was found between visual midge
 damage rating and percentage yield loss (r = 0.347), and between
 visual midge damage rating and midge number (r = 0.220).
 Percentage yield loss did not increase the reliability of
 identification of resistant cultivars. Cultivars identified with
 resistance by both methods were IS8232C, IS8237C, IS8112C,
 IS2740C, IS3390C, IS7132C, IS2685C, IS957C, IS7193C, IS2144C, and
 IS12572C. The correlation between percentage yield loss and midge
 number (r = 0.090) was nonsignificant. Both methods depend on high
 midge density to differentiate resistant and susceptible genotypes.
 When midge were not abundant good differentiation was not obtained.
 Indirect resistance measurements were more time consuming than a
 single visual rating at maturity, and when multiple years or
 locations were required, the visual damage rating was a more
 effective method of germplasm evaluation.
 
 
 195                          NAL Call. No.: 64.8 C883
 Grain yield reduction caused by second generation European corn
 boreer in BS9
 corn synthetic.
 Klenke, J.R.; Russell, W.A.; Guthrie, W.D.
 Madison, Wis. : Crop Science Society of America; 1986 Sep.
 Crop science v. 26 (5): p. 859-863; 1986 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Synthetic varieties; Ostrinia nubilalis;
 Cultivars; Yield losses; Pest control; Pest resistance;
 Biological control; Plant breeding; Genetic factors; Plant
 physiology
 
 
 196                      NAL Call. No.:  aS21.A8U5/ARS
 Greenbug damage: seedling growth and resistance.
 Burton, R.L.
 Washington, D.C. : The Service; 1986.
 Reprints - U.S. Department of Agriculture, Agricultural Research
 Service
 [197]: p. 38-39; 1986.  Includes references.
 
 Language:  English
 
 Descriptors: Triticum; Seedlings; Crop damage; Growth; Pest
 resistance; Varietal susceptibility; Hemiptera
 
 
 197                          NAL Call. No.: 64.8 C883
 Greenbug nonpreference for bloomless sorghum.
 Weibel, D.E.; Starks, K.J.
 Madison, Wis. : Crop Science Society of America; 1986 Nov.
 Crop science v. 26 (6): p. 1151-1153; 1986 Nov.  Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Schizaphis graminum; Pest
 resistance; Age differences; Developmental stages; Phenotypes;
 Hosts of plant pests; Biological control; Insect control
 
 
 198                          NAL Call. No.: QL461.S65
 Growth and survival of southwestern corn borer on whorl and
 reproductive stage
 plants of selected corn hybrids.
 Davis, F.M.; Williams, W.P.; Ng, S.S.; Videla, G.W.
 College Station, Tex. : Southwestern Entomological Society; 1991
 Jun.
 The Southwestern entomologist v. 16 (2): p. 144-154; 1991 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Mississippi; Zea mays; Diatraea grandiosella;
 Larvae; Pest resistance; Hybrids
 
 
 199                           NAL Call. No.: 420 F662
 Growth, development, and survival of fall armyworm fed panicles of
 isogenic
 sorghum lines in an artificial diet.
 Wiseman, B.R.; Duncan, R.R.
 Gainesville, Fla. : Florida Entomological Society; 1989 Sep.
 Florida entomologist v. 72 (3): p. 556-558; 1989 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Spodoptera frugiperda; Pest
 resistance; Panicles; Synthetic diets
 
 
 200                           NAL Call. No.: 421 J822 Hessian fly
 (Diptera: Cecidomyiidae) damage and forage production of winter
 wheat.
 Buntin, G.D.; Raymer, P.L.
 Lanham, Md. : Entomological Society of America; 1989 Feb.
 Journal of economic entomology v. 82 (1): p. 301-306; 1989 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Georgia; Triticum aestivum; Winter wheat; Cultivars;
 Crop yield; Crop damage; Pest resistance; Mayetiola destructor;
 Yield components
 
 Abstract:  Effect of Hessian fly, Mayetiola destructor (Say),
 damage on the forage production of susceptible and resistant
 cultivars of soft red winter wheat, Triticum aestivum L., was
 investigated in three experiments. Hessian fly damage reduced total
 dry matter yield of forage by 14 to 46%. Damage in all experiments
 was greatest during the first cutting when plants were in the
 seedling stage. Total forage yield declined linearly with
 increasing percentage of infested tillers when January infestations
 exceeded about 10% infested tiller. Low to moderate levels of
 Hessian fly damage reduced forage yield primarily by a reduction in
 tiller size and weight rather than tiller density. Severe
 infestations reduced tiller size and density. Hessian fly damage
 did not greatly affect crude protein or acid detergent fiber
 content of forage. Our study documents the potential risk of severe
 Hessian fly damage to wheat forage production. The economic benefit
 of using host plant resistance to control the Hessian fly in winter
 wheat grown for forage averaged $105/ha in these studies.
 
 
 201                   NAL Call. No.:  SB608.M2I57 1987
 The hopper-borne diseases of maize and control by vector
 resistance.
 Bajet, N.B.; Renfro, B.L.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987. Toward insect resistant maize for the Third World :
 proc of the International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 156-162; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Genetic engineering; Resistance; Insect
 pests; Homoptera; Disease vectors; Plant viruses; Mycoplasma-like
 organisms; Host plants; Hosts of plant pests; Host parasite
 relationships; Interference
 
 
 202                          NAL Call. No.: SB245.B42
 Host plant resistance: advances in cotton.
 Jenkins, J.N.
 Memphis : National Cotton Council; 1986.
 Proceedings of the...Beltwide Cotton Production Conference. p.
 34-41; 1986.
 Paper presented at the "Beltwide Cotton Production Conference,"
 January 4-9, 1986, Las Vegas, Nevada.
 
 Language:  English
 
 Descriptors: Mississippi; Gossypium hirsutum; Breeding aims;
 Resistance; Insect pests; Meloidogyne incognita; Germplasm; F1
 hybrids
 
 
 203                            NAL Call. No.: QK1.C83
 Host plant resistance for insect control in some important crop
 plants.
 Gracen, V.E. Jr
 Boca Raton, Fla. : CRC Press; 1986.
 Critical reviews in plant sciences v. 4 (3): p. 277-291; 1986. 
 Literature
 review.  Includes references.
 
 Language:  English
 
 Descriptors: Crops; Insect control; Hosts of plant pests;
 Resistance; Breeding aims; Genetic factors
 
 
 204                            NAL Call. No.: 23 AU74
 Host plant resistance in cotton.
 Thompson, N.J.
 Marrickville, N.S.W. : Academic Press; 1987.
 Journal of the Australian Institute of Agricultural Science v. 53
 (4): p.
 262-270. ill; 1987.  Literature review.  Includes references.
 
 Language:  English
 
 Descriptors: Australia; Gossypium; Breeding programs; Pest
 resistance; Plant breeding; Plant damage; Insect pests; Crop yield
 
 
 205                   NAL Call. No.:  SB608.M2I57 1987
 Host plant resistance to the Asiatic corn borer, Ostrinia
 furnacalis, in the
 Philippines.
 Lit, M.C.; Adalla, C.B.; Lantin, M.M.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 277-280; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Philippines; Zea mays; Breeding programs;
 Resistance; Ostrinia furnacalis; Breeding methods; Resistance
 mechanisms; Genetic resources
 
 
 206                           NAL Call. No.: SB476.G7
 Host resistance to turf insects.
 Cobb, P.
 Overland Park, Kan. : Intertec Publishing Corporation; 1987 Feb.
 Grounds maintenance v. 22 (2): p. 26. ill; 1987 Feb.
 
 Language:  English
 
 Descriptors: Lawns and turf; Cultivars; Insect pests; Resistance
 
 
 207                           NAL Call. No.: 442.8 Z8
 Identification of alien chromatin specifying resistance to wheat
 streak mosaic
 and greenbug in wheat germ plasm by C-banding and in situ
 hybridization.
 Friebe, B.; Mukai, Y.; Dhaliwal, H.S.; Martin, T.J.; Gill, B.S.
 Berlin, W. Ger. : Springer International; 1991.
 Theoretical and applied genetics v. 81 (3): p. 381-389. ill; 1991. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Elymus hispidus; Aegilops
 speltoides; Plant breeding; Addition lines; Translocation lines; C
 bands; Dna hybridization; Genetic resistance; Pest resistance;
 Wheat streak mosaic virus; Schizaphis graminum; Gene location;
 Chromosome translocation; Chromatin; Chromosomes
 
 Abstract:  The chromosome constitutions of eight wheat streak
 mosaic virus (WSMV)-resistant lines, three of which are also
 greenbug resistant, derived from wheat/Agropyron
 intermedium/Aegilops speltoides crosses were analyzed by C-
 banding and in situ hybridization. All lines could be traced back
 to CI15092 in which chromosome 4A is substituted for by an Ag.
 intermedium chromosome designated 4Ai-2, and the derived lines
 carry either 4Ai-2 or a part of it. Two (CI17881, CI17886) were
 4Ai-2 addition lines. C117882 and CI17885 were 4Ai-2(4D)
 substitution lines. CI17883 was a translocation substitution line
 with a pair of 6AL.4Ai-2S and a pair of 6AS.4Ai-2L chromosomes
 substituting for chromosome pairs 4D and 6A of wheat. CI17884
 carried a 4DL.4Ai-2S translocation which substituted for
 chromosome 4D. CI17766 carried a 4AL.4Ai-2S translocation
 substituting for chromosome 4A. The results show that the 4Ai-2
 chromosome is related to homoeologous group 4 and that the
 resistance gene(s) against WSMV is located on the short arm of
 4Ai-2. In addition, CI17882, CI17884, and CI17885 contained Ae.
 speltoides chromosome 7S substituting for chromosome 7A of wheat.
 The greenbug resistance gene Gb5 was located on chromosome 7S.
 
  208                           NAL Call. No.: 421 J822
 Identification of common bean lines with ovipositional resistance
 to Empoasca
 kraemeri (Homoptera: Cicadellidae).
 Kornegay, J.L.; Cardona, C.; Van Esch, J.; Alvarado, M.
 Lanham, Md. : Entomological Society of America; 1989 Apr.
 Journal of economic entomology v. 82 (2): p. 649-654; 1989 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Colombia; Phaseolus vulgaris; Breeding programs; Crop
 damage; Germplasm; Lines; Pest resistance; Empoasca; Nymphs;
 Oviposition
 
 Abstract:  Field and greenhouse studies were done to identify
 ovipositional antixenosis (the plant property responsible for
 resistance) in common beans, Phaseolus vulgaris L., to the
 leafhopper Empoasca kraemeri Ross and Moore. The 1985 field study
 showed considerable variation among 49 resistant bean lines for
 nymphal counts, damage scores, and yield under leafhopper attack.
 Bean lines EMP 124,' EMP 125,' and EMP 135' had significantly fewer
 nymphs per leaf over the growing season than ICA Pijao,' the
 tolerant check variety. These results were confirmed in 1986 when
 nymphal emergence and adult leafhopper counts on EMP 124' and EMP
 135' were compared with EMP 81,' another tolerant check. Other bean
 lines with low nymphal emergence, low damage scores, and high
 nonprotected yield also were identified. The effect of plant age on
 antixenosis resistance also was studied under field conditions, and
 EMP 124' showed high levels of resistance to leafhopper oviposition
 as seedlings and plants. Compared with the tolerant check, EMP 89'
 and EMP 135,' however, appeared to be less preferred for
 oviposition as plants than as seedlings. Greenhouse free choice and
 no choice studies were conducted on bean seedlings and plants. EMP
 124' and EMP 125' showed high levels of antixenosis resistance
 compared with ICA Pijao,' and EMP 94' and EMP 135' were
 intermediate in their response. Crosses between tolerant and
 antixenosis bean lines are recommended as a potential means of
 increasing overall leafhopper resistance levels.
 
 
 209                          NAL Call. No.: SB599.J69
 Identifying resistance in corn to corn earworm (Lepidoptera:
 Noctuidae) using
 a laboratory bioassay.
 Buckley, P.M.; Davis, F.M.; Williams, W.P.
 Clemson, S.C. : South Carolina Entomological Society; 1991 Jan.
 Journal of agricultural entomology v. 8 (1): p. 67-70; 1991 Jan. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Helicoverpa zea; Diatraea grandiosella;
 Spodoptera frugiperda; Pest resistance; Inbred lines; Laboratory
 tests; Bioassays
 
 
 210                           NAL Call. No.: 421 J822
 Impact of fall armyworm (Lepidoptera: Noctuidae) host strains on
 the
 evaluation of Bermuda grass resistance.
 Pashley, D.P.; Quisenberry, S.S.; Jamjanya, T.
 Lanham, Md. : Entomological Society of America; 1987 Dec.
 Journal of economic entomology v. 80 (6): p. 1127-1130; 1987 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Louisiana; Cynodon dactylon; Varieties; Pest
 resistance; Spodoptera frugiperda; Larvae; Development; Survival
 
 Abstract:  Development and survival of two fall armyworm (FAW),
 Spodoptera frugiperda (J.E. Smith), host strains were evaluated on
 four varieties of Bermuda grass, Cynodon dactylon (L.)
 ('Costal', 'Grazer', OSU 71 X 6-7, and 'Tifton 292'). Two FAW
 laboratory colonies used in experiments were analyzed
 electrophoretically and determined to comprise the corn strain (GA
 colony) and the rice/Bermuda grass strain (LA colony).
 Comparisons between strain indicated significant developmental
 differences on 'Tifton 292' and, to a lesser degree, on 'Costal'.
 On the former, larvae from the LA colony were 3 times heavier on
 day 8 and developed about 3 d faster than larvae from the GA
 colony. Differences in survivorship were not significant.
 Development on the four varieties also differed within strains. The
 LA colony exhibited the best developmental performance on 'Tifton
 292', whereas that variety was worst for development of the GA
 colony. Thus, a variety considered resistant when tested with the
 corn strain conferred no resistance to the rice strain. In nature,
 the rice strain predominantly feeds on Bermuda grass. The host
 strain of laboratory colonies used to assess host plant resistance
 to FAW cannot be ignored.
 
 
 211                           NAL Call. No.: 421 J822
 Importance of plant senescence on grain sorghum resistance to the
 banks grass
 mite (Acari: Tetranychidae).
 Archer, T.L.; Bynum, E.D. Jr; Peterson, G.C.
 College Park, Md. : Entomological Society of America; 1986 Feb.
 Journal of economic entomology v. 79 (1): p. 15-17; 1986 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Texas; Sorghum bicolor; Genotypes; Senescence; Crop
 damage; Pest resistance; Oligonychus pratensis
 
 
 212                          NAL Call. No.: 421 EN895
 The importance of the behaviour of young larvae in sorghum
 resistance to Chilo
 partellus.
 Woodhead, S.; Taneja, S.L.
 Dordrecht : Dr W. Junk Publishers; 1987 Sep.
 Entomologia experimentalis et applicata v. 45 (1): p. 47-54; 1987
 Sep.
 Includes references.
 
 Language:  English
 
 Descriptors: Sorghum; Cultivars; Pest resistance; Chilo
 partellus; Eggs; Larvae; Pest control; Waxes
 
 
 213                           NAL Call. No.: SB249.N6
 Improvement in fiber quality, yield potential, and resistance to
 pests of MAR
 cottons.
 El-Zik, K.M.; Thaxton, P.M.; Wallace, T.P.; Cook, C.G.
 Memphis, Tenn. : National Cotton Council and The Cotton
 Foundation; 1988.
 Proceedings - Beltwide Cotton Production Research Conferences. p.
 554-560; 1988.  Conference held on January 3-8, 1988, New
 Orleans, Louisiana.  Includes
 references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Breeding programs; Fiber
 quality; Crop quality; Disease resistance; Pest resistance; Drought
 tolerance
 
 
 214                          NAL Call. No.: SB599.J69
 Inbreeding depression and gene frequency changes for agronomic
 traits in corn
 synthetic selected for resistance to European corn borer.
 Klenke, J.R.; Russell, W.A.; Guthrie, W.D.; Smith, O.S.
 Clemson, S.C. : South Carolina Entomological Society; 1988 Oct.
 Journal of agricultural entomology v. 5 (4): p. 225-233; 1988 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Synthetic varieties; Agronomic
 characteristics; Recurrent selection; Resistance; Ostrinia
 nubilalis; Gene frequency; Inbreeding depression
 
 
 215                                       NAL Call. No.: 26 L53
 Incidence of termite damage in sugar cane grown in Sri Lanka.
 Kumarasinghe, N.C.; Ranasinghe, M.A.S.K.
 Leipzig, E. Ger. : Karl-Marx-Universitat; 1988.
 Beitrage zur tropischen Landwirtschaft und Veterinarmedizin v. 26
 (3): p.
 303-307; 1988.  Includes references.
 
 Language:  English
 
 Descriptors: Sri lanka; Saccharum officinarum; Sets; Buds; Crop
 damage; Odontotermes; Pest resistance; Rain; Varieties
 
 
 216                   NAL Call. No.:  SB608.M2I57 1987
 Incorporating insect resistant maize varieties into tropical
 cropping systems.
 Peairs, F.B.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 271-274; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Resistance; Insect pests; Cultivars;
 Incorporation; Cropping systems; Tropical Zones
 
 
 217                            NAL Call. No.: 420 K13
 Incorporation of callus tissue into artifical diet as a means of
 screening
 corn genotypes of resistance to the fall armyworm and the corn
 earworm
 (Lepidoptera: Noctuidae).
 Isenhour, D.J.; Wiseman, B.R.
 Lawrence, Kan. : The Society; 1988 Jul.
 Journal of the Kansas Entomological Society v. 61 (3): p.
 303-307; 1988 Jul.
 Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Genotypes; Pest resistance; Heliothis zea;
 Spodoptera frugiperda; Diets; Callus; Screening
 
 
 218                          NAL Call. No.: 64.8 C883
 Indices of plant damage and heritability of tolerance to the
 spotted alfalfa
 aphid in alfalfa.
 Jimenez, H.O.; Caddel, J.L.; Berberet, R.C.; McNew, R.W. Madison,
 Wis. : Crop Science Society of America; 1989 Nov.
 Crop science v. 29 (6): p. 1337-1340; 1989 Nov.  Includes
 references.
 
 Language:  English
 
 Descriptors: Oklahoma; Medicago sativa; Cultivars; Pest
 resistance; Therioaphis; Plant damage; Characterization;
 Heritability; Performance traits; Performance indexes
 
 Abstract:  Alfalfa, Medicago sativa L., cultivars expressing
 antibiosis or antixenosis resistance to the spotted alfalfa aphid
 (SAA), Therioaphis maculata (Buckton), impose selection pressure
 for more-virulent insect biotypes. Tolerant plants could be useful
 in reducing pressure for rapid development of new
 biotypes. Our studies were conducted to quantify tolerance to the
 SAA by assessing damage to plants that supported infestations with
 less damage than was typically observed in susceptible plants and
 to study the inheritance of tolerance. Vegetative propagation was
 used to provide replicates of tolerant plants for use in estimating
 the extent of genetic variability in the
 Oklahoma common cultivar OK08. Heritability of tolerance was
 estimated by parent-offspring regression of selfed and polycross
 progeny. Numbers of SAA were similar on tolerant and susceptible
 plants after 10 d of infestation and by Day 19, tolerant plants had
 much higher numbers. A tolerance index that considers stunted
 growth and percentage of leaves that exhibit no chlorosis was
 developed based on correlation of these variables with dry-matter
 production. After a 19-d infestation period, variation in
 expression of tolerance by 39 candidate plants was high and 35% of
 the variability was estimated to be genetic. Heritability of the
 tolerance characteristics was estimated at 25% in selfed progeny of
 these plants and 20% in polycross progeny. Reduction in
 heritability of tolerance in these progeny suggests that dominant
 effects may control expression of this trait in alfalfa.
 
 
 219                           NAL Call. No.: QL461.G4
 Influence and performance of soybean lines isogenic for
 pubescence type on
 oviposition preference and egg distribution by corn earworm
 (Lepidoptera:  Noctuidae).
 Lambert, L.; Kilen, T.C.
 Tifton, Ga. : Georgia Entomological Society; 1989 Jul.
 Journal of entomological science v. 24 (3): p. 309-316; 1989 Jul. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Heliothis zea; Resistance to injurious
 factors; Oviposition; Isogenic lines; Insect control
 
 
 220                          NAL Call. No.: QH301.A76
 The influence of cultivating new raspberry varieties on the
 incidence of
 viruses in raspberry crops in the UK.
 Jones, A.T.
 Wellesbourne, Warwick : The Association of Applied Biologists;
 1988.
 Aspects of applied biology (17,pt.1): p. 179-186; 1988.  Paper
 presented at
 the "Conference on Environmental Aspects of Applied Biology,"
 September 19-21, 1988, University of York, England.  Includes
 references.
 
 Language:  English
 
 Descriptors: United kingdom; Rubus; Cultivars; Disease
 resistance; Disease vectors; Pest resistance; Plant viruses;
 Incidence; Amphorophora
 
 
 221                         NAL Call. No.: QL461.E532
 Influence of host plant and insecticide resistance on greenbug
 (Homoptera:  Aphididae) biotype variation measured by fluorescent
 microscopy. Mayo, Z.B.; Banks, D.J.; Starks, K.J.; Veal, R.A.
 College Park, Md. : Entomological Society of America; 1987 Jun.
 Environmental entomology v. 16 (3): p. 676-679; 1987 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Oklahoma; Schizaphis graminum; Biotypes; Sorghum
 bicolor; Cultivars; Insecticide resistance; Esterases; Enzyme
 activity; Insecticides; Hosts of plant pests; Fluorescence
 microscopy
 
 
 222                            NAL Call. No.: 420 K13
 Influence of maize pericarp surface relief on resistance to the
 maize weevil
 (Coleoptera: Curculionidae).
 Tipping, P.W.; Legg, D.E.; Rodriguez, J.G.; Poneleit, C.G.
 Lawrence, Kan. : The Society; 1988 Apr.
 Journal of the Kansas Entomological Society v. 61 (2): p.
 237-241. ill; 1988
 Apr.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; PeRicarp; Pest resistance; Inbred lines;
 Sitophilus zeamais
 
 
 223                          NAL Call. No.: SB599.J69
 Influence of planting date on abundance of panicle-feeding
 insects associated
 with sorghum.
 Archer, T.L.; Losada, J.C. ves; Bynum, E.D. Jr
 Clemson, S.C. : South Carolina Entomological Society; 1990 Jul.
 Journal of agricultural entomology v. 7 (3): p. 233-239; 1990 Jul. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Texas; Sorghum bicolor; Lygus hesperus; Contarinia
 sorghicola; Planting date; Population dynamics; Pest resistance;
 Hybrids
 
 
 224                           NAL Call. No.: 421 J822
 Influence of resistant and susceptible cultivar blends of hard red
 spring
 wheat on wheat stem sawfly (Hymenoptera: Cephidae) damage and wheat
 quality
 parameters.
 Weiss, M.J.; Riveland, N.R.; Reitz, L.L.; Olson, T.C. Lanham, Md.
 : Entomological Society of America; 1990 Feb.
 Journal of economic entomology v. 83 (1): p. 255-259; 1990 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Montana; Triticum aestivum; Spring wheat; Cultivars;
 Crop damage; Cephus cinctus; Larvae; Milling and baking quality
 
 Abstract:  Use of resistant and susceptible cultivar blends of hard
 red spring wheat (Triticum aestivum L.) were investigated over a 3-
 yr period as a method to suppress wheat stem sawfly, Cephus cinctus
 Norton, damage. Blends provided inconsistent protection against
 stem cutting. Differences in estimated
 harvestable yield were only detected in 1 year. Total yield and
 milling and baking qualities of blends were not significantly
 different from those of monocultures. Blends may be useful in
 situations where the potential for damage by wheat stem sawfly is
 low to moderate.
 
 
 225                         NAL Call. No.: S539.5.A77
 Influence of spacings and fertilizer levels on the incidence of
 bollworm-boll
 rot complex in three varieties of cotton (Gossypium hirsutum).
 Ilango, K.; Uthamasamy, S.
 New York, N.Y. : Springer; 1989.
 Applied agricultural research v. 4 (3): p. 173-178; 1989. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Tamil nadu; Gossypium hirsutum; Varieties;
 Pectinophora gossypiella; Heliothis armigera; Earias vittella;
 Earias insulana; Boll; Infectivity; Npk fertilizers; Plant
 density; Insect control; Disease resistance; Decay fungi;
 Spacing; Population dynamics
 
 Abstract:  Three varieties of cotton (G. hirsutum) were evaluated
 for their reaction to the bollworm-boll rot complex in two
 spacings and three fertilizer levels. A spacing of 75 X 30 cm
 attracted more of all the three species of bollworms and boll rot
 compared to 90 X 30 cm spacing. Similarly, an increase in
 nitrogen levels led to increased infestation of bollworms and
 consequently increased levels of boll rot. Bollworm-boll rot
 complex was more in 80-40-40 and 120-40-40 NPK/ha compared to
 40-40-40 NPK/ha.
 
 
 226                            NAL Call. No.: 420 K13
 Influence of susceptible and resistant maize accessions on the
 development of
 Sitophilus zeamais Motsch. (Coleoptera, Curculionidae) with initial
 feeding in
 specific kernel areas.
 Urrelo, R.; Wright, V.F.
 Lawrence, Kan. : The Society; 1989 Jan.
 Journal of the Kansas Entomological Society v. 62 (1): p. 32-43.
 ill; 1989
 Jan.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Susceptibility; Pest resistance; Kernels;
 Sitophilus zeamais; Development; Feeding
 
 
 227                           NAL Call. No.: 420 F662
 Influence of three soybean genotypes on development of Voria
 ruralis (Diptera:  Tachinidae) and on foliage consumption by its
 host, the soybean looper
 (Lepidoptera: Noctuidae).
 Grant, J.F.; Shepard, M.
 Gainesville, Fla. : Florida Entomological Society; 1985 Dec.
 Florida entomologist v. 68 (4): p. 672-677; 1985 Dec.  Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Genotypes; Pseudoplusia includens; Pest
 resistance; Parasites of insect pests; Voria ruralis; Foliage;
 Consumption; Development; Integrated pest management; Host
 parasite relationships
 
 
 228                           NAL Call. No.: 421 J822
 Influence of variety on abundance and within-plant distribution of
 onion
 thrips (Thysanoptera: Thripidae) on cabbage.
 Stoner, K.A.; Shelton, A.M.
 College Park, Md. : Entomological Society of America; 1988 Aug.
 Journal of economic entomology v. 81 (4): p. 1190-1195; 1988 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: New York; Brassica oleracea var. capitata;
 Varieties; Crop damage; Pest resistance; Thrips tabaci
 
 
 229                          NAL Call. No.: SB123.S63
 Inheritance of corn leaf aphid resistance in hull-less barley. Ram,
 M.
 Taipei : Society for the Advancement of Breeding Researches in Asia
 and
 Oceania; 1983 Jun.
 SABRAO journal v. 15 (1): p. 1-5; 1983 Jun.  Includes 7
 references.
 
 Language:  English
 
 Descriptors: Hordeum vulgare; Food grains; Characteristics;
 Inheritance; Alleles; Pest resistance; Rhopalosiphum maidis;
 Recessive genes; Breeding aims; Breeding programs
 
 
 230                          NAL Call. No.: 64.8 C883
 Inheritance of pubescence in selected clones from two alfalfa
 populations and
 relationship to potato leafhopper resistance.
 Elden, T.C.; Elgin, J.H. Jr; Soper, J.F.
 Madison, Wis. : Crop Science Society of America; 1986 Nov.
 Crop science v. 26 (6): p. 1143-1146; 1986 Nov.  Includes
 references.
 
 Language:  English
 
 Descriptors: Medicago sativa; Clones; Empoasca fabae; Trichomes;
 Pest resistance; Heritability; Combining ability; Plant breeding
 
 
 231                           NAL Call. No.: 421 J822
 Inheritance of resistance in two Triticum aestivum lines to Russian
 wheat
 aphid (Homoptera: Aphididae).
 Du Toit, F.
 Lanham, Md. : Entomological Society of America; 1989 Aug.
 Journal of economic entomology v. 82 (4): p. 1251-1253; 1989 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: South Africa; Triticum aestivum; Cultivars;
 Genotypes; Inbred lines; Inheritance; Pest resistance; Hemiptera;
 Insect control
 
 Abstract:  Studies were done to determine the inheritance of
 resistance in two wheat (Triticum aestivum L.) lines, PI 137739 and
 PI 262660, that were previously identified as resistant to Russian
 wheat aphid, Diuraphis noxia (Mordvilko), and to
 establish whether resistance was governed by the same or
 different genes. The resistant lines were crossed with the
 cultivars Tugela' and Betta.' Resistance reactions of backcross,
 F2, and F3 seedlings in greenhouse tests indicated that
 resistance in each line is controlled by a single dominant gene and
 that these genes are independently inherited. The gene
 symbols Dn 1 and Dn 2 are recommended for the resistance genes in
 PI 137739 and PI 262660, respectively.
 
 
 232                          NAL Call. No.: QL461.I57
 Inheritance of resistance to midge, Contarinia sorghicola Coq. in
 sorghum, Sorghum bicolor (L.) Moench.
 Agrawal, B.L.; Abraham, C.V.; House, L.R.
 Oxford : Pergamon Press; 1988.
 Insect science and its application v. 9 (1): p. 43-45; 1988. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Karnataka; Sorghum bicolor; Cultivars; Insect pests;
 Contarinia sorghicola; Insect control; Plant breeding; Resistance
 to parasites; Inheritance of acquired characters; Genetic
 variance; Crossbreds; Combining ability
 
 
 233                            NAL Call. No.: 450 EU6
 Inheritance of tolerance to barley yellow dwarf virus in oats.
 Mckenzie, R.I.H.; Burnett, P.A.; Gill, C.C.; Comeau, A.; Brown,
 P.D.
 Wageningen : Netherlands Study Circle of Plant Breeding; 1985 Nov.
 Euphytica v. 34 (3): p. 681-687; 1985 Nov.  Includes references.
 
 Language:  English
 
 Descriptors: Avena sativa; Barley yellow dwarf virus;
 Rhopalosiphum padi; Disease vectors; Disease resistance;
 Inheritance of acquired characters; Biological control
 
 
 234                            NAL Call. No.: 4 AM392
 Insect and mite pests of wheat.
 Hatchett, J.H.; Starks, K.J.; Webster, J.A.
 Madison, Wis. : American Society of Agronomy; 1987.
 Agronomy (13): p. 625-675; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Insect pests; Yield losses; Leaves;
 Stems; Spikes; Pest control; Resistance
 
 
 235                          NAL Call. No.: TA166.T72
 Insect control with genetically engineered crops.
 Brunke, K.J.; Meeusen, R.L.
 Cambridge : Elsevier Publications; 1991 Jun.
 Trends in biotechnology v. 9 (6): p. 197-200; 1991 Jun.  Includes
 references.
 
 Language:  English
 
 Descriptors: Insect control; Plant breeding; Genetic engineering;
 Resistance; Insect pests; Bacteria; Gene transfer; Genetic
 control; Proteins; Insecticidal properties; Biological control
 agents
 
 Abstract:  The ability to move bacterial genes encoding 'natural'
 insecticidal proteins into plants is permitting the development of
 crops intrinsically resistant to insect attack, with
 advantages over conventional insect-control agents (i.e.
 externally applied synthetic chemicals). These advantages include
 absence of residues in soil or groundwater, lack of toxicity to
 non-target organisms, and protection of plant parts which are
 difficult or impossible to spray (e.g. roots). Continued
 elucidation of the mechanisms by which such agents act, coupled
 with genetic engineering techniques, should lead to an increasing
 variety of insect-resistant crops in the coming years.
 Agriculture will thus gain inexpensive, effective and
 environmentally safe alternatives to current insect-control
 methods.
 
 
 236                      NAL Call. No.:  aS21.A8U5/ARS
 Insect fauna in stems of native sunflower in southeastern North
 Dakota.
 Charlet, L.D.; Brewer, G.J.; Beregovoy, V.
 Washington, D.C. : The Service; 1989.
 Reprints - U.S. Department of Agriculture, Agricultural Research
 Service
 [356]: p. 38-41; 1989.
 
 Language:  English
 
 Descriptors: North Dakota; Helianthus; Alternative hosts;
 Germplasm; Pest resistance; Insect pests; Incidence; Larvae;
 Nealiolus curculionis; Parasites of insect pests; Stems
 
 
 237                            NAL Call. No.: 421 P69
 Insect pest management in sorghum.
 Sukhani, T.R.
 Faridabad : The Directorate of Plant Protection, Quarantine &
 Storage; 1986.
 Plant protection bulletin v. 38 (1/4): p. 57-62; 1986.  Includes
 references.
 
 Language:  English
 
 Descriptors: India; Sorghum; Hybrids; Varieties; Pest resistance;
 Insect pests; Biological control; Chemical control; Cultural
 control; Insecticides; Integrated pest management
 
 
 238                   NAL Call. No.:  SB191.P4I57 1986
 Insect pests of pearl millet in West Africa and their control.
 NDoye, M.; Gahukar, R.
 Patancheru, Andhra Pradesh, India : Int Crops Res Inst for the
 Semi-Arid
 Tropics; 1987.
 Proceedings of the International Pearl Millet Workshop : 7-11 April
 1986, ICRISAT Center, India / sponsored by USAID Title XII
 (INTSORMIL) and
 (ICRISAT). p. 195-205. ill., maps; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: West Africa; Pennisetum americanum; Insect pests;
 Cultural control; Biological control; Chemical control; Pest
 resistance; Varieties; Insect control; Insecticides
 
 
 239                           NAL Call. No.: 100 L936
 Insect resistant cotton.
 Jones, J.E.; Dickson, J.I.; Novick, R.G.; Graves, J.B.; Leonard,
 B.R.; Burris, E.
 Baton Rouge, La. : The Department; 1989.
 Report of projects - Louisiana Agricultural Experiment Station,
 Department of
 Agronomy. p. 8-21; 1989.  Includes statistical data.
 
 Language:  English
 
 Descriptors: Gossypium; Strains; Resistance; Insect pests
 
 
 240                          NAL Call. No.: 100 M69MI
 Insect resistant cotton to be field tested.
 Remy, K.
 Mississippi State, Miss. : The Station; 1989 May.
 MAFES research highlights - Mississippi Agricultural and Forestry
 Experiment
 Station v. 52 (5): p. 2. ill; 1989 May.
 
 Language:  English
 
 Descriptors: Mississippi; Gossypium hirsutum; Genetic
 engineering; Insecticidal plants; Field tests
 
 
 241                            NAL Call. No.: S51.E22
 Insect screening results: evaluation of corn hybrids for
 resistance to
 insects.
 Widstrom, N.W.; McMillian, W.W.; Wiseman, B.R.
 Athens, Ga. : The Stations; 1989 Nov.
 Research report - University of Georgia, College of Agriculture,
 Agricultural
 Experiment Stations (585): p. 26-29; 1989 Nov.
 
 Language:  English
 
 Descriptors: Georgia; Zea mays; Hybrids; Screening tests;
 Resistance; Insect pests
 
 
 242                           NAL Call. No.: 421 J822
 Insecticide toxicity to the soybean looper and the velvetbean
 caterpillar
 (Lepidoptera: Noctuidae) as influenced by feeding on resistant
 soybean (PI
 227687) leaves and coumestrol.
 Rose, R.L.; Sparks, T.C.; Smith, C.M.
 College Park, Md. : Entomological Society of America; 1988 Oct.
 Journal of economic entomology v. 81 (5): p. 1288-1294; 1988 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Louisiana; Glycine max; Varieties; Pest resistance;
 Anticarsia gemmatalis; Pseudoplusia includens; Coumestrol;
 Insecticides; Toxicity
 
 Abstract:  Permethrin, fenvalerate, acephate, methyl parathion, and
 methomyl were tested on larvae of the velvetbean caterpillar,
 Anticarsia gemmatalis (Hubner), and the soybean looper,
 Pseudoplasia includens (Walker), fed on a susceptible ('Bragg') or
 a resistant (PI 227687) soybean cultivar. At LD50,
 susceptibility of A. gemmatalis larvae to fenvalerate and
 acephate was significantly enhanced by feeding on the resistant
 cultivar (1.5 and 1.6 times, respectively). P. includens reared on
 resistant leaves were also significantly more susceptible to
 acephate (2 times) than when they were reared on susceptible
 leaves. The toxicity of the other insecticides examined for each
 insect was not affected. Incorporation of coumestrol, an
 isoflavonoid associated with PI 227687 resistance, into a
 modified artificial diet resulted in significant reductions in
 weight gain for P. includens larvae. Feeding on a diet amended with
 coumestrol significantly enhanced the toxicity of
 fenvalerate (1.5 times) while reducing toxicity of methomyl (2
 times) to larvae of P. includens.
 
 
 243                           NAL Call. No.: 100 L936
 Insect-resistant cottons.
 Jones, J.E.; Dickson, J.I.; Graves, J.B.; Pavloff, A.M.; Leonard,
 B.R.; Burris, E.; Caldwell, W.D.; Micinski, S.; Moore, S.H.;
 Aguillard, W.
 Baton Rouge, La. : The Department; 1988.
 Report of projects - Louisiana Agricultural Experiment Station,
 Department of
 Agronomy. p. 3-11; 1988.
 
 Language:  English
 
 Descriptors: Louisiana; Gossypium; Cultivars; Pest resistance;
 Anthonomus grandis; Heliothis; Cotton; Fiber quality; Yield
 components
 
 
 244                          NAL Call. No.: SB203.P28
 Insects that reduce persistence and productivity of forage
 legumes in the USA.
 Berberet, R.C.; Dowdy, A.K.
 Madison, Wis. : American Society of Agronomy; 1989.
 Persistence of forage legumes : proceedings of a trilateral
 workshop held in
 Honolulu, Hawaii, 18-22 July 1988 / editors, G.C. Marten ... [et
 al.].. p.
 481-500; 1989.  Literature review.  Includes references.
 
 Language:  English
 
 Descriptors: U.S.A.; Forage legumes; Sown pastures; Insect pests;
 Crop damage; Yield losses; Chemical control; Breeding aims;
 Resistance
 
 
 245                            NAL Call. No.: 421 B87
 Intensive free-choice and no-choice cohort tests for evaluating
 resistance to
 Maruca testulalis (Lepidoptera: Pyralidae) in cowpea.
 Echendu, T.N.C.; Akingbohungbe, A.E.
 London : Commonwealth Agricultural Bureaux International; 1990 Sep.
 Bulletin of entomological research v. 80 (3): p. 289-293; 1990 Sep. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Nigeria; Vigna unguiculata; Pest resistance; Crop
 damage; Maruca testulalis; Longevity; Sex ratio; Size; Yield losses
 
 
 246                         NAL Call. No.: 22.5 AG823
 Interactions between biotypes of the brown planthopper and rice
 varieties.
 Cheng, C.H.
 Taiwan, China : The Taiwan Agricultural Research Institute; 1985
 Sep.
 Chung-hua nung yeh yen chiu; Journal of agricultural research of
 China v. 34
 (3): p. 299-314; 1985 Sep.  Includes references.
 
 Language:  English
 
 Descriptors: Taiwan; Oryza sativa; Varieties; Pest resistance;
 Nilaparvata lugens; Biotypes; Crop damage; Population dynamics;
 Survival
 
 
 247                            NAL Call. No.: 421 B87
 Introduction and spread of the cassava green mite, Mononychellus
 tanajoa
 (Bondar) (Acari: Tetranychidae), an exotic pest in Africa and the
 search for
 appropriate control methods: a review.
 Yaninek, J.S.; Herren, H.R.
 London : Commonwealth Agricultural Bureaux International; 1988 Mar.
 Bulletin of entomological research v. 78 (1): p. 1-13. maps; 1988
 Mar.
 Literature review.  Includes references.
 
 Language:  English
 
 Descriptors: Africa; Manihot esculenta; Cultivars; Pest
 resistance; Mononychellus tanajoa; Biological control; Biology;
 Crop damage; Insect control; Spread; Taxonomy
 
 
 248                         NAL Call. No.: QL483.I4J6
 'Introduction nursery' contributes resistant maize germplasms to
 shoot fly
 complex (Atherigona soccata Rondani and Atherigona naqvii
 Steyskal) in spring
 sown maize.
 Panwar, V.P.S.; Sarup, P.
 New Delhi : Malhotra Publishing House; 1986 Dec.
 Journal of entomological research v. 10 (2): p. 144-146; 1986 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: India; Zea mays; Resistance to parasites; Germplasm;
 Atherigona soccata; Atherigona naqvii
 
 
 249                           NAL Call. No.: 442.8 Z8
 Introgression of genes from Oryza officinalis well ex watt to
 cultivated rice, O. sativa, L.
 Jena, K.K.; Khush, G.S.
 Berlin, W. Ger. : Springer International; 1990.
 Theoretical and applied genetics v. 80 (6): p. 737-745. ill; 1990. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Thailand; Malaysia; India; Philippines; Oryza
 sativa; Oryza; Introgression; Backcrossing; Plant breeding;
 Addition lines; Genomes; Recombination; Segregation; Genes;
 Phenotypes; Pest resistance; Planthoppers; Plant morphology;
 Fertility; Crop yield; Gene location
 
 
 250                           NAL Call. No.: SB91.N48
 Kairomones--chemical signals related to plant resistance against
 insect attack.
 Rembold, H.
 London : Chapman and Hall; 1989.
 New crops for food and industry / edited by G.E. Wickens, N. Haq,
 P. Day. p.
 352-364; 1989.  Paper presented at the "International Symposium on
 New Crops
 for Food and Industry".  Includes references.
 
 Language:  English
 
 Descriptors: Plant pests; Insects; Integrated pest management; Pest
 resistance
 
 
 251                           NAL Call. No.: 421 J822
 Laboratory bioassay for resistance in corn to fall armyworm
 (Lepidoptera:  Noctuidae) and southwestern corn borer
 (Lepidoptera: Pyralidae). Williams, W.P.; Buckley, P.M.; Hedin,
 P.A.; Davis, F.M.
 Lanham, Md. : Entomological Society of America; 1990 Aug.
 Journal of economic entomology v. 83 (4): p. 1578-1581; 1990 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Mississippi; Zea mays; Inbred lines; Pest
 resistance; Spodoptera frugiperda; Diatraea grandiosella; Larvae;
 Weight losses
 
 Abstract:  Inbred lines of corn, Zea mays L., were evaluated for
 resistance to leaf feeding by the fall armyworm, Spodoptera
 frugiperda (J. E. Smith), and southwestern corn borer, Diatraea
 grandiosella Dyar, in field and laboratory experiments. For the
 laboratory bioassays, diets were prepared from lyophilized whorl
 tissue of field grown plants of resistant and susceptible corn
 inbred lines. To prepare the diets, 11 g lyophilized tissue was
 stirred into a mixture of 250 ml distilled water, 2 g agar, 12.5 mg
 gentamicin sulfate, 132 mg sorbic, and 528 mg ascorbic acid that
 had been heated to 82 degrees C and poured into 30-ml
 plastic cups. Cups were infested with two neonate larvae each. Fall
 armyworm larvae reared for 10 d on diets containing tissue of
 resistant inbred lines weighed 60% less than those reared on diets
 containing susceptible inbred tissue. Southwestern corn borer
 larvae reared for 14 d on whorl tissue from resistant inbred lines
 weighed 50% less than those reared on susceptible tissue. The
 laboratory bioassay satisfactorily differentiated among resistant
 and susceptible corn inbreds.
 
 
 252                           NAL Call. No.: 421 J822
 Laboratory method for screening corn for European corn borer
 (Lepidoptera:  Pyralidae) resistance.
 Wilson, R.L.; Wissink, K.M.
 College Park, Md. : Entomological Society of America; 1986 Feb.
 Journal of economic entomology v. 79 (1): p. 274-276; 1986 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Varieties; Pest resistance; Ostrinia
 nubilalis; Screening tests; Laboratory techniques
 
 
 253                          NAL Call. No.: 64.8 C883
 A laboratory technique to evaluate boll weevil oviposition
 preference among
 cotton lines.
 Buford, W.T.; Jenkins, J.N.; Maxwell, F.G.
 Madison, Wis. : Crop Science Society of America; 1967 Nov.
 Crop science v. 7 (6): p. 579-581; 1967 Nov.  Includes
 references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Line differences; Oviposition;
 Anthonomus grandis; Laboratory methods; Pest resistance
 
 
 254                            NAL Call. No.: S79.E37
 Lamar, a new soybean variety resistant to leaf-feeding insects.
 Hartwig, E.E.; Lambert, L.; Kilen, T.C.
 Mississippi State, Miss. : The Station; 1989 Mar.
 Research report - Mississippi Agricultural and Forestry
 Experiment Station v.
 14 (5): 2 p. ill; 1989 Mar.
 
 Language:  English
 
 Descriptors: Mississippi; Glycine max; Leaves; Pest resistance;
 Insect control
 
 
 255                          NAL Call. No.: 64.8 C883
 Larval antibiosis screening technique for Mexican bean beetle
 resistance in
 soybean.
 Rufener, G.K. II; Hammond, R.B.; Cooper, R.L.; St Martin, S.K.
 Madison, Wis. : Crop Science Society of America; 1987 May.
 Crop science v. 27 (3): p. 598-600; 1987 May.  Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Lines; Epilachna varivestis; Pest
 resistance; Screening; Plant breeding
 
 
 256                          NAL Call. No.: 75.8 P842
 Larval development rate and mortality of Colorado potato beetle on
 detached
 leaves of wild Solanum species.
 Sanford, L.L.; Cantelo, W.W.
 Orono, Me. : Potato Association of America; 1989 Sep.
 American potato journal v. 66 (9): p. 575-582; 1989 Sep. 
 Includes references.
 
 Language:  English
 
 Descriptors: Maryland; Solanum; Species; Cultivars; Crop damage;
 Pest resistance; Leptinotarsa decemlineata; Larvae; Mortality;
 Development
 
 
 257                           NAL Call. No.: 421 J822
 Larval growth and behavior of the fall armyworm (Lepidoptera:
 Noctuidae) on
 callus initiated from susceptible and resistant corn hybrids.
 Williams, W.P.; Buckley, P.M.; Davis, F.M.
 College Park, Md. : Entomological Society of America; 1985 Aug.
 Journal of economic entomology v. 78 (4): p. 951-954. ill; 1985
 Aug.  Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Pest resistance; Hybrids; Callus;
 Spodoptera frugiperda
 
 
 258                           NAL Call. No.: SB599.C8
 Leaf-feeding resistance to six Australian noctuids in soybean.
 Brier, H.B.; Rogers, D.J.
 Guildford : Butterworths; 1991 Aug.
 Crop protection v. 10 (4): p. 320-324; 1991 Aug.  Includes
 references.
 
 Language:  English
 
 Descriptors: Queensland; Glycine max; Lines; Genotypes; Plant
 introduction; Crosses; Pest resistance; Genetic control; Line
 differences; Insect control; Helicoverpa armigera; Helicoverpa
 punctigera; Chrysodeixis; Diachrysia; Noctuidae; Antibiosis;
 Larvae; Mortality; Growth rate; Weight; Maturation period
 
 
 259                         NAL Call. No.: QL483.I4J6
 Location of sources for resistance in early maturing maize
 germplasms to the
 stalk borer, Chilo partellus (Swinhoe) under artificial
 infestation.
 Panwar, V.P.S.
 New Delhi : Malhotra Publishing House; 1986 Dec.
 Journal of entomological research v. 10 (2): p. 203-204; 1986 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: India; Zea mays; Chilo partellus; Pest resistance
 
 
 260                          NAL Call. No.: 64.8 C883
 Location of the benzoxazinless (bx) locus in maize by monosomic and
 B-A
 translocational analyses.
 Simcox, K.D.; Weber, D.F.
 Madison, Wis. : Crop Science Society of America; 1985 Sep.
 Crop science v. 25 (5): p. 827-830; 1985 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Loci; Monosomics; Chromosome
 translocation; Pest resistance
 
 
 261                           NAL Call. No.: SB249.N6
 Lower insecticide use associated with a pink-bollworm resistant
 cotton.
 Wilson, F.D.; Flint, H.M.
 Memphis, Tenn. : National Cotton Council and The Cotton
 Foundation; 1988.
 Proceedings - Beltwide Cotton Production Research Conferences. p.
 560-561; 1988.  Conference held on January 3-8, 1988, New
 Orleans, Louisiana.  Includes
 abstract.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Lines; Resistance; Pectinophora
 gossypiella; Insecticide application
 
 
 262                   NAL Call. No.:  SB608.M2I57 1987
 A maize breeding program for development of hybrids with
 resistance to
 multiple species of leaf-feeding and stalk-boring lepidoptera.
 Overman, J.L.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 235-243; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Tennessee; Zea mays; Breeding programs; Hybrids;
 Selection criteria; Resistance; Ostrinia nubilalis; Diatraea
 grandiosella; Spodoptera frugiperda; Inbred lines
 
 
 263                   NAL Call. No.:  SB608.M2I57 1987
 Maize insect pest problems, present status and future of host plant
 resistance
 in India.
 Sharma, V.K.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 281-285; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: India; Zea mays; Insect pests; Insect control; Control
 methods; Breeding programs; Resistance; Breeding methods;
 Resistance mechanisms; Inheritance
 
 
 264                   NAL Call. No.:  SB608.M2I57 1987
 Maize insect pests in Zimbabwe.
 Sithole, S.Z.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 286-288; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zimbabwe; Zea mays; Insect pests; Insect control;
 Control methods; Breeding programs; Selection criteria;
 Resistance; Screening
 
 
 265                   NAL Call. No.:  SB608.M2I57 1987
 Maize pest problems in Cameroon: the present and future role of
 host plant
 resistance.
 Cletus, A.T.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987 /
 sponsored by CIMMYT. p. 289-290; 1987.
 
 Language:  English
 
 Descriptors: Cameroon; Zea mays; Insect pests; Resistance;
 Cultivars
 
 
 266                   NAL Call. No.:  SB608.M2I57 1987
 Maize pest problems in India and future scope of host plant
 resistance.
 Mathur, L.M.L.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 291-294; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: India; Zea mays; Insect pests; Crop damage; Plant
 breeding; Selection criteria; Resistance; Breeding methods
 
 
 267                        NAL Call. No.: SB191.M2A34
 Maize plant resistance to insect damage and associated aflatoxin
 development.
 McMillian, W.W.
 Mexico, D.F. : CIMMYT; 1986.
 Aflatoxin in maize : proceedings of the workshop, El Batan, Mexico,
 April
 7-11, 1986 / sponspored by CIMMYT, UNDP and USAID. p. 250-253;
 1986.  Includes
 references.
 
 Language:  English
 
 Descriptors: Georgia; Zea mays; Germplasm; Hybrids; Plant damage;
 Heliothis zea; Insect pests; Aflatoxins; Aspergillus flavus;
 Disease vectors
 
 
 268                           NAL Call. No.: SB599.A6 Maize
 resistance to Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae): 
 behaviour of newly hatched larvae and movement from oviposition
 sites to
 feeding sites.
 Ampofo, J.K.O.; Nyangiri, E.O.
 Tokyo : Japanese Society of Applied Entomology and Zoology; 1986
 May.
 Applied entomology and zoology v. 21 (2): p. 269-276; 1986 May. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Inbred lines; Resistance; Insect pests;
 Chilo partellus; Neonates; Larvae; Behavior; Movements;
 Oviposition; Sites; Feeding
 
 
 269                   NAL Call. No.:  SB191.M2E27 1985
 Maize resistance to stalk borers [Chilo partellus (Swinhoe)
 (Lepidoptera:  Pyralidae)]: some aspects of insect responses to the
 plant and implications
 for breeders.
 Ampofo, J.K.O.; Saxena, K.N.
 Mexico, D.F., Mexico : Centro Internacional de Mejoramiento de Maiz
 y Trigo; 1986.
 To feed ourselves : proceedings of the First Eastern, Central
 Southern Africa
 Regional Maize Workshop, Lusaka, Zambia, March 10-17, 1985,
 sponsored by the
 Government of Zambia and CIMMYT. p. 251-258; 1986.  Includes
 references.
 
 Language:  English
 
 Descriptors: Kenya; Zea mays; Resistance to injurious factors;
 Insect pests; Chilo partellus; Breeding programs; Oviposition; Crop
 damage
 
 
 270                         NAL Call. No.: QL461.E532
 Maize stalk borer (Lepidoptera: Pyralidae) damage and plant
 resistance.
 Ampofo, J.K.O.
 College Park, Md. : Entomological Society of America; 1986 Dec.
 Environmental entomology v. 15 (6): p. 1124-1129; 1986 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Kenya; Zea mays; Cultivars; Chilo partellus; Eldana
 saccharina; Plant damage; Pest resistance; Yield losses
 
 
 271                       NAL Call. No.:  SB351.P3P432
 Management of arthropods on peanuts in Southeast Asia.
 Campbell, W.V.
 Experiment, Ga. : University of Georgia, Georgia Experiment
 Station; 1986.
 Annual report of the Peanut Collaborative Research Support
 Program (CRSP). p.
 235-258; 1986.
 
 Language:  English
 
 Descriptors: North Carolina; Thailand; Philippines; Arachis
 hypogaea; Insect pests; Control methods; Cultivation; Insecticide
 application; Breeding aims; Resistance
 
 
 272                   NAL Call. No.:  SB608.M2I57 1987
 Management of maize insects with resistant cultivars in the
 southern region of
 the United States.
 Rogers, C.E.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 257-266; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Southern states of U.S.A.; Zea mays; Cultivars;
 Resistance; Insect pests; Pest management; Plant breeding;
 Resistance mechanisms; Antibiosis; Biotechnology; Techniques
 
 
 273                            NAL Call. No.: S79.E37 Marketable
 yields of insect-resistant sweet potato cultivars. Thompson, P.G.;
 Hurley, R.M.
 Mississippi State, Miss. : The Station; 1989 Jan.
 Research report - Mississippi Agricultural and Forestry
 Experiment Station v.
 14 (1): 4 p.; 1989 Jan.  Includes references.
 
 Language:  English
 
 Descriptors: Mississippi; Ipomoea batatas; Variety trials;
 Cultivars; Insect control; Crop yield; Pest resistance
 
 
 274                   NAL Call. No.:  SB608.M2I57 1987
 Mass rearing of the maize stem borers Sesamia calamistis and Eldana
 saccharina
 at IITA.
 Bosque-Perez, N.A.; Dabrowski, Z.T.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 22-26. ill; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Nigeria; Zea mays; Breeding programs; Resistance;
 Insect pests; Sesamia calamistis; Eldana saccharina; Mass
 rearing; Techniques
 
 
 275                   NAL Call. No.:  SB608.M2I57 1987
 Mass rearing stem borers, fall armyworms, and corn earworms at
 CIMMYT.
 Mihm, J.A.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 5-21. ill; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Mexico; Zea mays; Breeding programs; Resistance;
 Insect pests; Mass rearing; Techniques; Diatraea grandiosella;
 Diatraea saccharalis; Spodoptera frugiperda; Helicoverpa zea
 
 
 276                            NAL Call. No.: 500 IN2
 Mass rearing the bird cherry oat aphid, Rhopalosiphum padi (L.).
 Kudagamage, C.; Foster, J.E.
 Indianapolis, Ind. : The Academy; 1985.
 Proceedings of the Indiana Academy of Science v. 94: p. 304; 1985. 
 Includes
 abstract.
 
 Language:  English
 
 Descriptors: Rhopalosiphum padi; Rearing techniques; Temperature;
 Light; Disease vectors; Fecundity; Barley yellow dwarf virus;
 Cereals; Disease resistance; Pest resistance; Plant breeding
 
 
 277                           NAL Call. No.: 421 J822
 Mechanisms of hybrid sunflower resistance to the sunflower midge
 (Diptera:  Cecidomyiidae).
 Anderson, M.D.; Brewer, G.J.
 Lanham, Md. : Entomological Society of America; 1991 Jun.
 Journal of economic entomology v. 84 (3): p. 1060-1067; 1991 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Manitoba; North Carolina; Helianthus annuus; Larvae;
 Crop damage; Hybrids; Pest resistance; Susceptibility; Contarinia
 schulzi; Field tests
 
 Abstract:  A study was conducted to identify mechanisms of
 resistance in sunflower to the sunflower midge, Contarinia
 schulzi Gagne. Infestation ratings, larval counts, and damage
 ratings were used to quantify midge resistance in seven sunflower
 hybrids grown at three locations. Six of the seven hybrids
 possessed midge resistance. Each hybrid was further categorized
 with respect to infestation resistance, antibiosis, and
 tolerance. Two bud characteristics, percent open and size, were
 examined for their contribution to infestation resistance. The
 percentage of time that buds of each hybrid were open was
 negatively correlated with infestation (indicating a preference for
 the open characteristic). Infestations were higher in buds greater
 than or equal to 2.5 cm in diameter. In artificial
 infestation trials, damage caused by first and second instars was
 very low due to high larval mortality. When sunflower buds were
 artificially infested with midge adults, moderate larval
 infestations occurred. Artificially infesting plants with adults
 confirmed the presence of antibiosis in two resistant and one
 susceptible hybrid.
 
 
 278                           NAL Call. No.: 421 J822
 Mechanisms of resistance and their interactions in twelve sources
 of
 resistance to biotype E greenbug (Homoptera: Aphididae) in
 sorghum.
 Dixon, A.G.O.; Bramel-Cox, P.J.; Reese, J.C.; Harvey, T.L.
 Lanham, Md. : Entomological Society of America; 1990 Feb.
 Journal of economic entomology v. 83 (1): p. 234-240; 1990 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Kansas; Sorghum bicolor; Crop damage; Germplasm;
 Interactions; Pest resistance; Schizaphis graminum; Screening
 
 Abstract:  Evaluation of mechanisms of resistance among 12 grain
 sorghum, Sorghum bicolor (L.) Moench, sources of resistance to the
 biotype E greenbug, Schizaphis graminum (Rondani), indicated that
 the most important mechanism within this germplasm seemed to be
 antibiosis (with a few exceptions). The source with the
 highest level of overall resistance was P1266965, which had also
 the highest level of antibiosis. The highest level of tolerance was
 found in P1229828, and the highest level of antixenosis was found
 in 'J242.' All mechanisms of resistance in the various plant stages
 were independent, and only antibiosis in the
 seedling stages was highly related to average damage score from the
 usual flat screening technique. Principal component analysis was
 used to develop an index to maximize variation among
 accessions, describe each germplasm's overall resistance, and
 compare the known sources of resistance with any susceptible
 sources or any new sources of resistance in relation to host plant
 interactions.
 
 
 279                          NAL Call. No.: 421 EN895
 The mechanisms of resistance in common beans to the leafhopper
 Empoasca
 kraemeri.
 Kornegay, J.L.; Cardona, C.; Schoonhoven, A. van
 Dordrecht : Dr W. Junk Publishers; 1986 Apr.
 Entomologia experimentalis et applicata v. 40 (3): p. 273-279; 1986
 Apr.
 Includes references.
 
 Language:  English
 
 Descriptors: Phaseolus vulgaris; Age; Varieties; Pest resistance;
 Empoasca; Feed preferences; Greenhouse experimentation;
 Oviposition
 
 
 280                          NAL Call. No.: 421 EN895
 Mechanisms of resistance in sorghum to head bug, Calocoris
 angustatus.
 Sharma, H.C.; Lopez, V.F.
 Dordrecht : Kluwer Academic Publishers; 1990 Dec.
 Entomologia experimentalis et applicata v. 57 (3): p. 285-294; 1990
 Dec.
 Includes references.
 
 Language:  English
 
 Descriptors: Andhra pradesh; Sorghum bicolor; Cultivars;
 Genotypes; Pest resistance; Calocoris angustatus; Feeding
 preferences; Insect control; Oviposition
 
 
 281                           NAL Call. No.: 421 J822
 Mechanisms of resistance in Zapalote Chico' corn silks to fall
 armyworm (Lepidoptera: Noctuidae) larvae.
 Wiseman, B.R.; Widstrom, N.W.
 College Park, Md. : Entomological Society of America; 1986 Oct.
 Journal of economic entomology v. 79 (5): p. 1390-1393; 1986 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Spodoptera frugiperda; Pest resistance;
 Genotypes; Larvae; Feeding behavior; Feed preferences; Silk; Silk;
 Styles
 
 
 282                          NAL Call. No.: 421 EN895
 Mechanisms of resistance/susceptibility of certain sorghum
 cultivars to the
 stem borer Chilo partellus: role of behaviour and development.
 Saxena, K.N.
 Dordrecht : Kluwer Academic Publishers; 1990 Apr.
 Entomologia experimentalis et applicata v. 55 (1): p. 91-99; 1990
 Apr.
 Includes references.
 
 Language:  English
 
 Descriptors: Kenya; Sorghum bicolor; Cultivars; Pest resistance;
 Chilo partellus; Behavior; Development; Feeding; Larvae;
 Oviposition
 
 
 283                   NAL Call. No.:  SB608.M2I57 1987
 Methodologies used for screening and determining resistance in
 maize to the
 European corn borer.
 Guthrie, W.D.; Barry, B.D.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 122-129.
 ill; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding programs; Resistance; Ostrinia
 nubilalis; Determination; Screening; Techniques
 
  284                   NAL Call. No.:  SB608.M2I57 1987
 Methods for developing maize resistant to the corn leaf aphid.
 Dicke, F.F.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 151-155.
 ill; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding programs; Resistance;
 Rhopalosiphum maidis; Disease vectors; Maize mosaic rhabdovirus;
 Inbred lines; Hybrids; Evaluation; Techniques
 
 
 285                   NAL Call. No.:  SB608.M2I57 1987
 Methods to detect and evaluate resistance in maize to grain insects
 in the
 field and in storage.
 Horber, E.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 140-150.
 ill; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding programs; Resistance; Insect pests;
 Stored products pests; Grain; Detection; Evaluation; Techniques
 
 
 286                   NAL Call. No.:  SB608.M2I57 1987
 Methods used to screen maize for and to determine mechanisms of
 resistance to
 the southwestern corn borer and fall armyworm.
 Davis, F.M.; Williams, W.P.; Wiseman, B.R.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987. Toward insect resistant maize for the Third World :
 proc of the International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 101-108.
 ill; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding programs; Resistance; Diatraea
 grandiosella; Spodoptera frugiperda; Resistance mechanisms;
 Screening; Techniques
 
 
 287                           NAL Call. No.: 421 J822
 Mexican bean beetle (Coleoptera: Coccinellidae) development on
 resistant and
 susceptible soybean lines in the laboratory and relationship to
 field
 selection.
 Rufener, G.K. II; Hammond, R.B.; Cooper, R.L.; St Martin, S.K.
 College Park, Md. : Entomological Society of America; 1986 Oct.
 Journal of economic entomology v. 79 (5): p. 1354-1358; 1986 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Cultivars; Lines; Epilachna varivestis;
 Development; Pest resistance; Selection; Mortality; Screening
 
 
 288                          NAL Call. No.: SB183.P57
 Midge-resistant sorghum variety ICSV 197.
 Andhra Pradesh, India : International Crops Research Institute for
 the
 Semi-Arid Tropics; 1987.
 Plant material description (11): 4 p. ill; 1987.
 
 Language:  English
 
 Descriptors: Andhra pradesh; Sorghum bicolor; Varieties; Origin;
 Performance; Characteristics; Resistance; Insect pests;
 Contarinia sorghicola
 
 
 289                           NAL Call. No.: 421 J822
 Mole cricket (Orthoptera: Gryllotalpidae) damage to Hemarthria
 altissima:  resistance or nonpreference?.
 Hudson, W.G.
 College Park, Md. : Entomological Society of America; 1986 Aug.
 Journal of economic entomology v. 79 (4): p. 961-963; 1986 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Florida; Hemarthria altissima; Paspalum notatum;
 Cultivars; Orthoptera; Pest resistance; Crop damage; Feed
 preferences; Screening
 
 
 290                          NAL Call. No.: SB599.P53
 Morphological basis of resistance in cotton to the whitefly Bemisia
 tabaci.
 Butter, N.S.; Vir, B.K.
 Rehovot : Priel Publishers; 1989.
 Phytoparasitica : Israel journal of plant protection sciences v. 17
 (4): p.
 251-261; 1989.  Includes references.
 
 Language:  English
 
 Descriptors: Indian punjab; Gossypium hirsutum; Genotypes;
 Isogenic lines; Pest resistance; Bemisia tabaci; Plant
 morphology; Leaf area; Thickness; Leaf hairs; Density; Length;
 Gossypol; Glands (plant); Host parasite relationships; Varietal
 susceptibility; Screening tests
 
 
 291                           NAL Call. No.: 421 J822
 A moth production index for evaluating sugarcane cultivars for
 resistance to
 the sugarcane borer (Lepidoptera: Pyralidae).
 Bessin, R.T.; Reagan, T.E.; Martin, F.A.
 Lanham, Md. : Entomological Society of America; 1990 Feb.
 Journal of economic entomology v. 83 (1): p. 221-225; 1990 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Louisiana; Saccharum officinarum; Cultivars; Crop
 damage; Pest resistance; Diatraea saccharalis; Survival
 
 Abstract:  A 3-yr study done to evaluate sugarcane, Saccharum
 officinarum L., cultivars for resistance to sugarcane borer,
 Diatraea saccharalis (F.), indicated the need to examine the effect
 of cultivars on areawide pest populations in addition to the
 resistance to plant injury from pest attack. Evaluation of the
 percentage of bored internodes has traditionally served as the
 primary criterion to quantify sugarcane resistance to
 sugarcane borers. However, this index measures the cultivar
 resistance only until penetration by young larvae into the stalk.
 Using the emergence holes of the sugarcane borer as the seasonal
 record of adult emergence, a relative survival index was
 developed to estimate the proportion of larvae inside the stalk
 that survived to adulthood. A low correlation (r = 0.253) was found
 between the percentage of bored internodes and the relative
 survival of the older larvae. Resistance ratings based on the
 percentage of bored internodes were found to be inadequate
 estimators of moth production because differences in borer
 survival after entry into the stalk influence the resultant adult
 moth emergence. Moth production on a cultivar serves as a measure
 of areawide suppression or enhancement of borer populations. Data
 from this study indicated that evaluations of varietal resistance
 to the sugarcane borer should be based on resistance to damage and
 the potential effect on areawide populations.
 
 
 292                           NAL Call. No.: 421 J822
 Nature of damage and sources of resistance to sweetpotato vine
 borer
 (Lepidoptera: Pyralidae) in sweet potato.
 Talekar, N.S.; Cheng, K.W.
 College Park, Md. : Entomological Society of America; 1987 Aug.
 Journal of economic entomology v. 80 (4): p. 788-791; 1987 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Taiwan; Ipomoea batatas; Lepidoptera; Germplasm;
 Screening; Crop damage; Pest resistance; Yield losses
 
 
 293                           NAL Call. No.: S601.A34
 Neonate larval survival of European corn borers, Ostrinia
 nubilalis, on high
 and low DIMBOA genotypes of maize: effects of light intensity and
 degree of
 insect inbreeding.
 Manuwoto, S.; Scriber, J.M.
 Amsterdam : Elsevier; 1985 Dec.
 Agriculture ecosystems & environment v. 14 (3/4): p. 221-236; 1985
 Dec.
 Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Genotypes; Pest resistance; Ostrinia
 nubilalis; Larvae; Neonates; Survival; Dimboa; Light intensity;
 Inbreeding
 
 
 294                           NAL Call. No.: SB249.N6
 New advances in developing multi-adversity resistant cottons. Bird,
 L.S.; El-Zik, K.M.; Thaxton, P.M.; Reyes, L.; Benedict, J.H.;
 Creelman, R.A.; Heald, C.M.
 Memphis, Tenn. : National Cotton Council and The Cotton
 Foundation; 1986.
 Proceedings - Beltwide Cotton Production Research Conferences. p.
 495-499; 1986.  Paper presented at the "Beltwide Cotton
 Production
 Research
 Conferences," January 4-9, 1986, Las Vegas, Nevada.  Includes 9
 references.
 
 Language:  English
 
 Descriptors: Gossypium; Breeding aims; Disease resistance; Insect
 pests; Resistance; Earliness; Yields
 
 
 295                          NAL Call. No.: 59.9 AM32
 New approaches to the identification and development of sorghum
 germplasm
 resistant to the biotype-E greenbug.
 Bramel-Cox, P.J.; Dixon, A.G.O.; Reese, J.C.; Harvey, T.L.
 Washington, D.C. : The Conference; 1986.
 Report of annual Corn and Sorghum Research Conference (41): p.
 1-16; 1986. Meeting held December 10-11, 1986, Chicago, Illinois. 
 Includes references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Schizaphis graminum; Insect pests;
 Pest resistance; Germplasm; Breeding aims
 
 
 296                           NAL Call. No.: 421 J822
 New grain sorghum sources of antibiosis to the chinch bug
 (Heteroptera:  Lygaeidae).
 Mize, T.W.; Wilde, G.
 College Park, Md. : Entomological Society of America; 1986 Feb.
 Journal of economic entomology v. 79 (1): p. 176-180; 1986 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: U.S.A.; Sorghum; Varieties; Pest resistance; Blissus
 leucopterus; Development; Mortality
 
 
 297                           NAL Call. No.: 421 J822
 New resistant germplasm to the chinch bug (Heteroptera: 
 Lygaeidae) in grain
 sorghum: contribution of tolerance and antixenosis as resistance
 mechanisms.
 Mize, T.W.; Wilde, G.
 College Park, Md. : Entomological Society of America; 1986 Feb.
 Journal of economic entomology v. 79 (1): p. 42-45; 1986 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum; Germplasm; Lines; Pest resistance; Blissus
 leucopterus; Laboratory tests
 
 
 298                           NAL Call. No.: SB249.N6
 New sources of boll weevil resistance in primitive race stocks of
 gossypium
 hirsutum.
 Lukefahr, M.J.; Vieiera, R.M.
 Memphis, Tenn. : National Cotton Council and The Cotton
 Foundation; 1986.
 Proceedings - Beltwide Cotton Production Research Conferences. p.
 493-495; 1986.  Paper presented at the "Beltwide Cotton
 Production
 Research
 Conferences," January 4-9, 1986, Las Vegas, Nevada.  Includes 7
 references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Germplasm; Resistance;
 Anthonomus grandis; Breeding aims
 
 
 299                         NAL Call. No.: QL483.I4J6
 New sources of resistance to stem borer, Chilo partellus
 (Swinhoe) in sorghum.
 Kishore, P.
 New Delhi : Malhotra Publishing House; 1987 Dec.
 Journal of entomological research v. 11 (2): p. 155-157; 1987 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: India; Sorghum bicolor; Chilo partellus; Resistance;
 Varieties; Plant breeding
 
 
 300                          NAL Call. No.: 100 M69MI
 New soybean resistant to bugs.
 Remy, K.
 Mississippi State, Miss. : The Station; 1989 Apr.
 MAFES research highlights - Mississippi Agricultural and Forestry
 Experiment
 Station v. 52 (4): p. 7. ill; 1989 Apr.
 
 Language:  English
 
 Descriptors: Mississippi; Glycine max; Cultivars; Pest
 resistance; Anticarsia gemmatalis; Pseudoplusia includens; Plant
 introduction; Crop yield; Agronomic characteristics
 
 
 301                           NAL Call. No.: 421 J822
 No-choice cage technique to screen for resistance to sorghum midge
 (Diptera: Cecidomyiidae).
 Sharma, H.C.
 Lanham, Md. : Entomological Society of America; 1988 Feb.
 Journal of economic entomology v. 81 (1): p. 415-422. ill; 1988
 Feb.  Includes
 references.
 
 Language:  English
 
 Descriptors: Andhra pradesh; Sorghum; Cultivars; Pest resistance;
 Screening; Contarinia sorghicola; Larvae; Plant damage
 
 Abstract:  A cage technique to screen sorghum cultivars for
 resistance to sorghum midge, Contarinia sorghicola (Coquillett),
 under no-choice conditions was developed and standardized. Forty
 adult midges collected during morning hours (0800-1100 hours) from
 flowering sorghum panicles and introduced into the cage at the top-
 to half-anthesis stage for 2 consecutive d resulted in maximum
 midge damage in the susceptible cultivar 'CSH 1'.
 Wireframed cage covered with a blue bag caused the most damage in
 'CSH 1'. This technique is useful for verification of midge
 resistance observed under field conditions. Resistance of 21
 sorghum cultivars to sorghum midge was compared under no-choice
 cage and natural conditions for four seasons. Of 15 cultivars
 reported to be resistant to sorghum midge under natural
 conditions, only three ('DJ 6514', 'TAM 2566', and 'IS 12666C')
 showed repeatable levels of resistance under no-choice conditions
 during the four seasons. 'TAM 2566' and 'IS 12666C' were less
 attractive to the midges (less than 4 midges per five panicles)
 than the midge-susceptible hybrid sorghum 'CSH 1' (19 midges per
 five panicles) under field conditions. Fourteen cultivars that were
 either less attractive to adult midges or had less than or equal to
 12% florets with midge larvae under natural conditions showed a
 susceptible reaction under no-choice testing in the cage. Cultivar
 reactions to midge were stable under the cage over four seasons
 (except 'IS 2328'). Using first two principal
 component cluster analysis, 'TAM 2566' and 'DJ 6514' were grouped
 together as the most resistant cultivars. Sources of resistance to
 midge thus placed in different groups can be used to increase
 levels of midge resistance by hybridization among cultivars
 belonging to different groups.
 
 
 302                            NAL Call. No.: 420 K13
 Nonpreference resistance to European corn borer (Lepidoptera:
 Pyralidae) in
 the Mo-2 ECB maize cultivar.
 Barry, D.; Darrah, L.L.
 Lawrence, Kan. : The Society; 1988 Jan.
 Journal of the Kansas Entomological Society v. 61 (1): p. 72-75;
 1988 Jan.
 Includes references.
 
 Language:  English
 
 Descriptors: Missouri; Zea mays; Cultivars; Pest resistance;
 Genotypes; Ostrinia nubilalis
 
 
 303                       NAL Call. No.:  SB123.57.M64
 Novel insect resistance using protease inhibitor genes.
 Gatehouse, A.M.R.; Boulter, D.; Hilder, V.A.
 Molecular approaches to crop improvement / edited by E.S. Dennis
 and D.J.
 Llewellyn. p. 63-77; 1991. (Plant gene research).  Includes
 references.
 
 Language:  English
 
 Descriptors: Nicotiana tabacum; Nicotiana plumbaginifolia; Crops;
 Heliothis virescens; Lepidoptera; Gene transfer; Transgenics;
 Genetic transformation; Genetic resistance; Pest resistance; Vigna
 unguiculata; Proteinase inhibitors; Genes; Thuringiensin;
 Insecticidal properties; Agrobacterium tumefaciens
 
 
 304                          NAL Call. No.: 59.9 AM32
 Nutritional factors related to European corn borer resistance in
 maize.
 Coors, J.G.
 Washington, D.C. : The Conference; 1987.
 Report of annual Corn and Sorghum Research Conference (42): p.
 76-88; 1987.
 Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Ostrinia nubilalis; Insect pests; Pest
 resistance; Plant nutrition; Infectivity; Genetic control; Cell
 wall components; Plant breeding; Selection; Regression analysis
 
 
 305                         NAL Call. No.: QL461.E532
 Nymphal performance of Geocoris punctipes (Hemiptera: Lygaeidae on
 pest-resistant soybeans.
 Rogers, D.J.; Sullivan, M.J.
 College Park, Md. : Entomological Society of America; 1986 Oct.
 Environmental entomology v. 15 (5): p. 1032-1036; 1986 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Genotypes; Pest resistance; Geocoris
 punctipes; Predators of insect pests; Nymphs; Growth; Anticarsia
 gemmatalis; Pseudoplusia includens; Feeds
 
 
 306                           NAL Call. No.: 421 J822
 Oat, wheat, and barley resistance to white grubs of Phyllophaga
 congrua
 (Coleoptera: Scarabaeidae).
 Crocker, R.L.; Marshall, D.; Kubica-Breier, J.S.
 Lanham, Md. : Entomological Society of America; 1990 Aug.
 Journal of economic entomology v. 83 (4): p. 1558-1562; 1990 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Texas; Avena sativa; Hordeum vulgare; Triticum
 aestivum; Mortality; Cultivars; Pest resistance; Phyllophaga
 
 Abstract:  Field and greenhouse tests of selected small grain
 cultivars disclosed large differences in their resistance to
 Phyllophaga congrua (LeConte) white grubs. Resistance was
 evidenced first in a field plot test of four cultivars each of
 wheat (Triticum aestivum L.), oats (Avena sativa L.), and barley
 (Hordeum vulgare L.) (Poaceae). P. congrua white grubs that were
 present at planting caused high rates of seedling mortality and
 reduced the yields of some varieties. The most resistant
 cultivars of each species ('Nora' oats, 'Adder' wheat, and
 'Tambar 401' barley [1, 10, and 43% seedling mortality,
 respectively]) and the least resistant ones ('Florida 501' oats,
 'Wysor' barley, and 'Collin' wheat [10, 65, and 68% seedling
 mortality, respectively]) were tested further in the greenhouse.
 When the six cultivars were planted intermingled in the
 greenhouse, 22.8 times as many 'Collin' seedlings and 19.4 times as
 many 'Tambar 401' seedlings were destroyed by P. congrua third
 instars as were seedlings of 'Florida 501'. Two no-choice feeding
 experiments (each greenhouse plot contained only one cultivar)
 confirmed the trends for resistance shown in the choice
 experiments. Overall rates of grub-induced seedling mortality in
 the three greenhouse experiments were 8.5% ('Florida 501'), 10.9%
 ('Nora'), 25.8% ('Adder'), 35.7% ('Wysor'), 41.4% ('Collin'), and
 42.3% ('Tambar 401'). The resistance apparently is due to the
 nonpreference.
 
 
 307                           NAL Call. No.: SB599.C8
 Observations on the occurrence and inheritance in wheat of
 resistance to the
 grain aphid Sitobion avenae.
 Lowe, H.J.B.
 Guildford : Butterworths; 1985 Sep.
 Crop protection v. 4 (3): p. 313-321; 1985 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Winter wheat; Cultivars;
 Resistance; Sitobion avenae; Inheritance; Screening tests
 
 
 308                           NAL Call. No.: 421 J822
 Observed population increase, nymphal weight gain, and
 oviposition
 nonpreference as indicators of Lygus hesperus Knight
 (Heteroptera: Miridae)
 resistance in glandless cotton.
 Leigh, T.F.; Hyer, A.H.; Benedict, J.H.; Wynholds, P.F.
 College Park, Md. : Entomological Society of America; 1985 Oct.
 Journal of economic entomology v. 78 (5): p. 1109-1113; 1985 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Gossypium; Cultivars; Lygus hesperus; Pest
 resistance; Population dynamics; Oviposition
 
 
 309                            NAL Call. No.: 420 K13
 Oviposition performance of Sitophilus zeamais Motsch.
 (Coleoptera:  Curculionidae) on resistant and susceptible maize
 accessions. Urrelo, R.; Wright, V.F.
 Lawrence, Kan. : The Society; 1989 Jan.
 Journal of the Kansas Entomological Society v. 62 (1): p. 23-31.
 ill; 1989
 Jan.  Includes references.
 
 Language:  English
 
 Descriptors: Sitophilus zeamais; Oviposition; Zea mays;
 Susceptibility; Pest resistance
 
 
 310                           NAL Call. No.: 421 J822
 Oviposition preference by the sugarcane borer (Lepidoptera:
 Pyralidae).
 Sosa, O. Jr
 Lanham, Md. : Entomological Society of America; 1990 Jun.
 Journal of economic entomology v. 83 (3): p. 866-868; 1990 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Florida; Saccharum; Sorghum bicolor; Zea mays; Oryza
 sativa; Diatraea saccharalis; Oviposition; Clones; Cultivars
 
 Abstract:  Oviposition preference by the sugarcane borer,
 Diatraea saccharalis (F.), on several hosts was compared. The
 sugarcane borer laid significantly more eggs (78%) on four
 sugarcane (Saccharum spp.) clones than on corn (Zea mays L.),
 sorghum (Sorghum bicolor (L.) Moench), rice (Oryza sativa L.), or
 wax paper (22%). More eggs were laid on the leaf surfaces of
 glabrous sugarcane clones than on a pubescent clone. Although fewer
 eggs were laid on the leaf surfaces of pubescent clones,
 oviposition on the midribs (devoid of trichomes) was increased
 compared with oviposition on the midrib of glabrous clones; this
 result indicated also that moths avoided pubescent surfaces for
 oviposition. Overall, the glabrous clones received >2.5 times the
 number of eggs than the pubescent clone. A commercial sugarcane
 clone with pubescence might therefore be more resistant to the
 sugarcane borer than the glabrous clones that are currently grown.
 
 
 311                           NAL Call. No.: 421 J822
 Oviposition preference of the soybean looper (Lepidoptera: 
 Noctuidae) among
 four soybean genotypes differing in larval resistance.
 Beach, R.M.; Todd, J.W.
 Lanham, Md. : Entomological Society of America; 1988 Feb.
 Journal of economic entomology v. 81 (1): p. 344-348; 1988 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Georgia; Glycine max; Genotypes; Pest resistance;
 Pseudoplusia includens; Larvae; Oviposition
 
 Abstract:  Soybean looper (SBL), Pseudoplusia includens (Walker),
 oviposition preference among soybean (Glycine max (L.) Merrill)
 genotypes 'Kirby', 'GaSoy 17', GatIR 81-296, and PI 229358 was
 examined in two field tests with caged plants. In both cage tests,
 the number of SBL eggs deposited on 81-296 plants was significantly
 greater than or equal to egg deposition on plants of other
 genotypes. Oviposition was consistently lower on 'Kirby' compared
 with the other genotypes. Relative oviposition
 preference for 'GaSoy 17' and PI 229358 varied between the two
 tests. SBL larvae were also reared on foliage of each genotype to
 determine relative larval resistance. PI 229358 and 81-296 were
 significantly more resistant to SBL larvae (reduced larval and
 pupal weights, increased development times) compared with 'GaSoy
 17', while 'Kirby' was the most susceptible of the four
 genotypes. The relative preference of SBL moths for oviposition on
 the resistant genotype 81-296 compared with the susceptible
 genotype 'Kirby' indicates that larval resistance and adult
 oviposition preference in soybean are not necessarily positively
 correlated.
 
 
 312                           NAL Call. No.: QK1.N434
 Ovipositional preference of spotted bollworm (Earias vitella Fab.)
 in some
 cotton genotypes.
 Gupta, S.; Gupta, G.P.
 New Delhi : Today & Tomorrow's Printers & Publishers; 1988 Apr. New
 botanist v. 15 (2/3): p. 129-133; 1988 Apr.  Includes
 references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Genotypes; Earias vittella; Insect
 pests; Oviposition; Pest resistance; Seeds; Chemical composition;
 Tannins; Gossypol
 
 
 313                           NAL Call. No.: 421 J822
 Ovipositional response of southwestern corn borer (Lepidoptera:
 Pyralidae) and
 fall armyworm (Lepidoptera: Noctuidae) to selected maize hybrids.
 Ng, S.S.; Davis, F.M.; Williams, W.P.
 Lanham, Md. : Entomological Society of America; 1990 Aug.
 Journal of economic entomology v. 83 (4): p. 1575-1577; 1990 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Mississippi; Zea mays; Hybrids; Pest resistance;
 Diatraea grandiosella; Spodoptera frugiperda; Oviposition
 
 Abstract:  Field cage experiments were done to determine if maize
 (Zea mays L.) hybrids with leaf-feeding resistance to larvae of
 southwestern corn borer, Diatraea grandiosella Dyar, and fall
 armyworm, Spodoptera frugiperda (J. E. Smith), also are less
 preferred for oviposition under choice conditions. Two resistant
 maize hybrids (Mp496 X Mp701 and Mp704 X Mp706) and two
 susceptible hybrids (SC229 X Tx601 and Ab24E X Va35) were tested.
 Southwestern corn borers laid significantly fewer eggs on the
 resistant than on the susceptible hybrids. Fall armyworms laid
 significantly fewer eggs on the resistant hybrids than on SC229 X
 Tx601 but not on Ab24E X Va35. Thus, females of both species
 exhibited preference in selection of hosts for oviposition with the
 resistant hybrids being less preferred.
 
 
 314                          NAL Call. No.: QL461.I57
 Ovipositional responses of Chilo partellus (Swinhoe) to certain
 susceptible
 and resistant maize genotypes.
 Kumar, H.; Saxena, K.N.
 Oxford, Eng. : Pergamon Press; 1985.
 Insect science and its application v. 6 (3): p. 331-335; 1985. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Chilo partellus; Pest resistance;
 Susceptibility; Genotypes; Oviposition
 
 
 315                         NAL Call. No.: QL483.I4J6
 P311--A new sorghum variety resistant to the stem borer, Chilo
 partellus
 (Swinhoe).
 Kishore, P.
 New Delhi : Malhotra Publishing House; 1987 Jun.
 Journal of entomological research v. 11 (1): p. 115-118. ill; 1987
 Jun.
 Includes references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Chilo partellus; Varieties; Plant
 breeding; Resistance
 
 
 316                           NAL Call. No.: 421 J822
 Pecan weevil preference for various pecan cultivars.
 Calcote, V.R.; Hyder, D.E.
 Lanham, Md. : Entomological Society of America; 1981 Apr15. Journal
 of economic entomology v. 74 (2): p. 223-226; 1981 Apr15.  Includes
 references.
 
 Language:  English
 
 Descriptors: Texas; Carya pecan; Cultivars; Crop damage; Curculio
 caryae; Oviposition; Pest resistance
 
 Abstract:  The very early maturing pecan cultivar Johnson was
 damaged significantly less than were later maturing cultivars by
 Curculio caryae (Horn) in studies made in 1978 and 1979. In a
 different test in 1976, the cultivar 48-15-3 was the only one of 39
 cultivars tested that escaped damage. Both of these cultivars
 mature extremely early; thus, although the possibility of
 discovering immunity to the pecan weevil is negligible,
 resistance through host evasion by asynchrony is possible.
 
 
 317                           NAL Call. No.: 421 J822
 Performance of maize inbred line DE811 in hybrid combinations:
 resistance to
 first- and second-generation European corn borers (Lepidoptera:
 Pyralidae).
 Guthrie, W.D.; Hawk, J.A.; Jarvis, J.L.
 Lanham, Md. : Entomological Society of America; 1989 Dec.
 Journal of economic entomology v. 82 (6): p. 1804-1806; 1989 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Iowa; Zea mays; Genotypes; Hybrids; Inbred lines; Pest
 resistance; Ostrinia nubilalis
 
 Abstract:  Inbred line DE811 was crossed with 12 dent maize, Zea
 mays L., inbred lines. The 12 inbred lines, plus DE811 and a check
 inbred line, and 12 single crosses, plus two single-cross checks,
 were planted in a modified randomized block design for 3 yr, with
 five replications each year. First-generation European corn borer,
 Ostrinia nubilalis Hubner, plots were separate from the second-
 generation European corn borer plots (two hills of three plants for
 each plot in each experiment). Plants in the first-generation tests
 were infested during the midwhorl stage of plant development,
 whereas plants in the second-generation tests were infested during
 anthesis. Plants in each test were infested with 12 egg masses (300
 eggs) per plant in six applications of two masses, spaced 1 d
 apart. Leaf-feeding ratings in the first-generation tests were made
 3 wk after egg hatch. Sheath-collar feeding ratings and stalk
 damage were made 60 d after egg hatch in the second-generation
 tests. In combination with several susceptible inbred lines, DE811
 resistance showed partial
 dominance for resistance to leaf feeding by first-generation
 European corn borers and for resistance to sheath-collar feeding
 and stalk damage by second-generation European corn borers. Single
 crosses of DE811 X resistant inbred lines had high
 resistance to both European corn borer generations.
 
 
 318                           NAL Call. No.: 421 J822
 Peroxidative responses of leaves in two soybean genotypes injured
 by
 twospotted spider mites (Acari: Tetranychidae).
 Hildebrand, D.F.; Rodriguez, J.G.; Brown, G.C.; Luu, K.T.;
 Volden, C.S.
 College Park, Md. : Entomological Society of America; 1986 Dec.
 Journal of economic entomology v. 79 (6): p. 1459-1465; 1986 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Genotypes; Tetranychus urticae; Pest
 resistance; Leaves; Plant damage; Lipid peroxidation; Peroxidase;
 Catalase; Chlorophyll
 
 
 319                          NAL Call. No.: 100 AR42F
 Pest Control in Arkansas cereal crops through genetic resistance.
 Bacon, R.K.; Moldenhauer, K.A.K.; York, J.O.
 Fayetteville, Ark. : The Station; 1990 May.
 Arkansas farm research - Arkansas Agricultural Experiment Station
 v. 39 (3):  p. 8. ill; 1990 May.
 
 Language:  English
 
 Descriptors: Arkansas; Oryza sativa; Zea mays; Sorghum bicolor;
 Triticum; Avena sativa; Breeding aims; Disease resistance; Insect
 pests; Resistance
 
 
 320                         NAL Call. No.: SB299.S9A1
 Phytomelanin: development and role in hybrid resistance to
 Homoeosoma
 electellum larvae (Lepidoptera: Pyrallidae).
 Rogers, C.E.; Stafford, R.E.; Kreitner, G.L.
 Memphis, Tenn. : International Sunflower Congress; 1982 Mar14.
 Proceedings of the ... International Sunflower Conference. p.
 138-141; 1982
 Mar14.  Paper presented at the "10th International Sunflower
 Conference,"
 March 14-18, 1982, Surfers Paradise, Australia.  Includes 10
 references.
 
 Language:  English
 
 Descriptors: Helianthus annuus; Hybrids; Resistance; Insect pests;
 Homoeosoma electellum; Larvae; Melanins; PeRicarp; Layers; Breeding
 aims
 
 
 321                           NAL Call. No.: 421 J822
 Pink bollworm (Lepidoptera: Gelechiidae) egg hatch, larval
 success, and pupal
 and adult survival on okra- and normal-leaf cotton.
 Wilson, F.D.; George, B.W.; Fry, K.E.; Szaro, J.L.; Hennenberry,
 T.J.; Clayton, T.E.
 College Park, Md. : Entomological Society of America; 1986 Dec.
 Journal of economic entomology v. 79 (6): p. 1671-1675; 1986 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Arizona; Gossypium hirsutum; Strain differences;
 Pectinophora gossypiella; Pest resistance; Plant damage;
 Survival; Mortality; Developmental stages; Boll; Temperatures;
 Microclimate
 
 
 322                          NAL Call. No.: 64.8 C883
 Pink bollworm resistance, lint yield, and earliness of cotton
 isolines in a
 resistant genetic background.
 Wilson, F.D.
 Madison, Wis. : Crop Science Society of America; 1987 Sep.
 Crop science v. 27 (5): p. 957-960; 1987 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Arizona; Gossypium hirsutum; Cultivars; Isogenic
 lines; Pectinophora gossypiella; Pest resistance; Plant
 morphology; Plant damage; Crop yield; Earliness
 
 
 323                          NAL Call. No.: 64.8 C883
 Pink bollworm resistance, lint yield, and lint yield components of
 okra-leaf
 cotton in different genetic backgrounds.
 Wilson, F.D.
 Madison, Wis. : Crop Science Society of America; 1986 Nov.
 Crop science v. 26 (6): p. 1164-1167; 1986 Nov.  Includes 17
 references.
 
 Language:  English
 
 Descriptors: Arizona; Gossypium hirsutum; Pectinophora
 gossypiella; Pest resistance; Lint; Crop yield; Yield components;
 Genetics; Insect control; Seeds; Leaves; Heritability; Canopy;
 Plant breeding; Stress; Arid Zones; Genotype environment
 interaction
 
 
 324                            NAL Call. No.: 420 K13
 Plant damage and survival of European corn borer (Lepidoptera:
 Pyralidae)
 larvae reared for 22 years on resistant and susceptible inbred
 lines of maize. Guthrie, W.D.; Jarvis, J.L.
 Lawrence, Kan. : The Society; 1990 Jan.
 Journal of the Kansas Entomological Society (63): p. 193-195; 1990
 Jan.
 Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Ostrinia nubilalis; Larvae; Cultivars;
 Resistance; Susceptibility; Inbreeding
 
 
 325                           NAL Call. No.: 421 J822
 Plant resistance studies with Diuraphis noxia (Homoptera: 
 Aphididae), a new
 United States wheat pest.
 Webster, J.A.; Starks, K.J.; Burton, R.L.
 College Park, Md. : Entomological Society of America; 1987 Aug.
 Journal of economic entomology v. 80 (4): p. 944-949; 1987 Aug. 
 Includes
 references.
 
 Language:  English
 
                            NAL Call. No.: 421 J822
 Descriptors: U.S.A.; Hemiptera; Gramineae; Pest resistance;
 Germplasm; Screening; TolerancesPlant resistance studies with
 Diuraphis noxia (Homoptera:  Aphididae), a new 
 
 
 326                           NAL Call. No.: 420 F662
 Plant resistance to insects attacking corn and grain sorghum.
 Wiseman, B.R.; Davis, F.M.
 Gainesville, Fla. : Florida Entomological Society; 1990 Sep.
 Florida entomologist v. 73 (3): p. 446-458; 1990 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Sorghum bicolor; Helicoverpa; Zea;
 Spodoptera frugiperda; Diatraea grandiosella; Ostrinia nubilalis;
 Contarinia sorghicola; Pest resistance; Literature reviews
 
 
 327                           NAL Call. No.: 420 F662
 Plant resistance to insects in cotton.
 Parrott, W.L.
 Gainesville, Fla. : Florida Entomological Society; 1990 Sep.
 Florida entomologist v. 73 (3): p. 392-396; 1990 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Heliothis virescens; Helicoverpa
 zea; Pest resistance; Gossypol; Plant glands
 
 
 328                           NAL Call. No.: 420 F662
 Plant resistance to insects in vegetables for the southern United
 States.
 Schalk, J.M.
 Gainesville, Fla. : Florida Entomological Society; 1990 Sep.
 Florida entomologist v. 73 (3): p. 396-410; 1990 Sep.  Literature
 review.
 Includes references.
 
 Language:  English
 
 Descriptors: Southeastern states of U.S.A.; Vegetables; Insect
 pests; Pest resistance; Cultivars; Literature reviews
 
 
 329                           NAL Call. No.: 421 J822
 Plot size and shape in relation to soybean resistance for
 velvetbean
 caterpillar (Lepidoptera: Noctuidae).
 Funderburk, J.E.; Soffes, A.R.; Barnett, R.D.; Herzog, D.C.;
 Hinson, K.
 Lanham, Md. : Entomological Society of America; 1990 Oct.
 Journal of economic entomology v. 83 (5): p. 2107-2110; 1990 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Florida; Glycine max; Cultivars; Pest resistance;
 Anticarsia gemmatalis; Defoliation; Experimental design; Larvae;
 Population density; Plot size
 
 Abstract:  During 1986, 1987 and 1988, selected plot sizes
 andshapes were evaluated for suitability in field experiments
 designed to compare soybean,Glycine max (L.) Merrill, cultivars for
 resistance to larvae of the velvetbean caterpillar,
 Anticarsia gemmatalis (Hubner). Plot size or shape did not
 significantly affect the relativerankings between cultivars in
 density or percentage of defoliation; therefore, any of the
 plotsizes or shapes examined in our experiments appear suitable for
 use in field experiments tocompare soybean cultivars for resistance
 to this defoliating pest. Plot size and
 shapeinfluenced the mean and precision of density and injury
 estimates. Estimates of larval density and percentage of
 defoliation were greater in plots of two or more rows than in one-
 row and hillplots. Precision of density and percentage of
 defoliation estimates were best for the plot sizeof two linear rows
 each 3 m long. Consequently, a plot size of two linear rows each 3
 mlong appears the best option for field screening
 experiments.
 
 
 330                          NAL Call. No.: 421 EN895
 Pod hairs as a factor in Vigna vexillata resistance to the
 pod-sucking bug, Clavigralla tomentosicollis.
 Chiang, H.S.; Singh, S.R.
 Dordrecht : Kluwer Academic Publishers; 1988 May.
 Entomologia experimentalis et applicata v. 47 (2): p. 195-199; 1988
 May.
 Includes references.
 
 Language:  English
 
 Descriptors: Taiwan; Vigna vexillata; Vigna unguiculata;
 Varieties; Crop damage; Clavigralla tomentosicollis; Pest
 resistance; Seeds
 
 
 331                           NAL Call. No.: S601.A34
 Population development of Bemisia tabaci (Homoptera: Aleurodidae)
 on various
 cotton cultivars in Cukurova, Turkey.
 Ozgur, A.F.; Sekeroglu, E.
 Amsterdam : Elsevier; 1986 Aug.
 Agriculture, ecosystems and environment v. 17 (1/2): p. 83-88; 1986
 Aug.
 Papers presented at a symposium on Bemisia Tabaci -- Ecology and
 Control, at
 the XVII International Congress of Entomology, Aug 19-23, 1984,
 Hamburg, F.R.G.  Includes references.
 
 Language:  English
 
 Descriptors: Turkey; Gossypium barbadense; Gossypium herbaceum;
 Gossypium hirsutum; Cultivars; Bemisia tabaci; Population
 dynamics; Pest resistance; Plant breeding; Biological control
 
 
 332                           NAL Call. No.: SB249.N6
 Preference and nonpreference of boll weevils to selected cotton.
 Jones, J.E.; Dickson, J.I.; Beasley, J.P.
 Memphis, Tenn. : National Cotton Council and The Cotton
 Foundation; 1987.
 Proceedings - Beltwide Cotton Production Research Conferences. p.
 98-102; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Genotypes; Anthonomus grandis;
 Resistance to injurious factors; Insect pests
 
 
 333                          NAL Call. No.: 421 EN895
 Preference of white-backed planthopper, Sogatella furcifera to
 different rice
 varieties.
 Mishra, N.C.; Misra, B.C.
 Dordrecht : Kluwer Academic Publishers; 1991 Apr.
 Entomologia experimentalis et applicata v. 59 (1): p. 87-92; 1991
 Apr.
 Includes references.
 
 Language:  English
 
 Descriptors: Oryza sativa; Age; Crop growth stage; Pest
 resistance; Varieties; Sogatella furcifera; Feeding preferences;
 Oviposition; Shelter
 
 
 334                        NAL Call. No.: SB111.A2T74
 Preliminary study of varietal reaction of soybean cultivars to leaf
 defoliators.
 Haq, M.; Rezaul Karim, A.N.M.; Alam, S.
 Ibadan, Nigeria : International Grain Legume Information Centre;
 1985.
 Tropical grain legume bulletin (30): p. 29-30; 1985.  Includes
 references.
 
 Language:  English
 
 Descriptors: Bangladesh; Glycine max; Variety trials; Resistance;
 Spilosoma obliqua; Spodoptera litura
 
 
 335                   NAL Call. No.:  SB608.M2I57 1987
 Pre-release testing and seed production of insect resistant maize
 cultivars.
 Deutsch, J.A.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 267-270; 1987.
 
 Language:  English
 
 Descriptors: Zea mays; Cultivars; Resistance; Insect pests; Variety
 trials; Seed production; Techniques
 
 
 336                           NAL Call. No.: SB249.N6
 Present state of the art and science of cotton breeding for insect
 resistance
 in the Southeast.
 Jenkins, J.N.
 Memphis, Tenn. : National Cotton Council of America and The Cotton
 Foundation; 1982.
 Proceedings - Beltwide Cotton Production Research Conferences. p.
 117-125; 1982.  Meeting held January 3-7, 1982, Las Vegas,
 Nevada. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Plant breeding; Pest resistance;
 Heliothis virescens; Anthonomus grandis; Lygus lineolaris;
 Trialeurodes vaporariorum
 
 
 337                NAL Call. No.:  HD9019.S432C47 1987
 Problems of the Indonesian cereal seed industry., 1st ed. Marip, S.
 Tokyo : Asian Productivity Organization; 1987.
 Cereal seed industry in Asia and the Pacific. p. 227-230; 1987.
 
 Language:  English
 
 Descriptors: Indonesia; Oryza sativa; Zea mays; Cereals; Seed
 industry; Improved varieties; Pest resistance
 
 
 338                   NAL Call. No.:  SB608.M2I57 1987
 Procedures and techniques for reading Cicadulina leafhoppers.
 Dabrowski, Z.T.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 84-93. ill; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding programs; Resistance; Maize streak
 geminivirus; Disease vectors; Cicadulina; Species; Mass rearing;
 Techniques
 
 
 339                          NAL Call. No.: 64.8 C883
 Productivity and tobacco budworm resistance of cotton developed
 between
 1890-1986.
 Wharton, T.F.; Jenkins, J.N.; McCarty, J.C. Jr; Parrott, W.L.
 Madison, Wis. : Crop Science Society of America; 1991 Jan.
 Crop science v. 31 (1): p. 29-32; 1991 Jan.  Includes references.
 
 Language:  English
 
 Descriptors: Helicoverpa zea; Gossypium hirsutum; Pest
 resistance; Relationships; Crop yield; Lint; Bolls; Cultivars;
 Genetic resistance
 
 Abstract:  There is a paucity of information on the relationships
 between modern (i.e., released in or after 1978) and historically
 obsolete cotton (Gossypium hirsutum L.) cultivars with respect to
 their ability to yield when grown in the presence of high levels of
 tobacco budworm (TBW), Heliothis virescens F. The objective of this
 study was to compare 18 cultivars of cotton developed
 between 1890 and 1986 for ability to yield when grown with and
 without TBW infestations. This comparison was accomplished by
 growing cultivars for 2 yr under two regimes: (i) artificial
 infestation with TBW (w/TBW) and (ii) complete control of all
 insect pests (w/o TBW). The regression equation for lint
 percentage w/o TBW on lint yield w/o TBW was Y = 26.8 + 0.0076 X,
 with an R2 of 0.58. Thus, lint percentage has increased 0.76% for
 every 100 kg ha-1 increase in lint yield. The regression equation
 for number of bolls w/o TBW on lint yields w/o TBW was Y = 73,689
 + 402 X, with an R2 of 0.83. The regression equation for lint yield
 w/TBW on lint yield w/o TBW was Y = -48.4 + 0.69 X, with an R2 of
 0.84. Thus, for every 1.00 kg of lint yield increase due to
 breeding during the 96-yr period there was a corresponding lint
 yield increase under TBW infestation of only 0.69 kg. The newer
 cultivars yielded more than the older cultivars, with number of
 boils per unit area and lint percentage being the primary
 components involved in increased yields. Some of the newer
 cultivars yielded as much w/TBW as some of the older cultivars w/o
 TBW. In addition, the newest cultivar (DES 119; 1986) yielded
 significantly more than any other cultivar when grown w/o TBW. It
 also yielded significantly more when grown w/TBW than any
 cultivar developed before 1982.
 
 
 340                           NAL Call. No.: SB249.N6
 Progress in developing high tannin cotton for Heliothis
 resistance.
 Altamarino, T.P.; Smith, C.W.; Love, J.; Bell, A.A.; Stipanovic,
 R.D.
 Memphis, Tenn. : National Cotton Council and The Cotton
 Foundation; 1988.
 Proceedings - Beltwide Cotton Production Research Conferences. p.
 553; 1988. Conference held on January 3-8, 1988, New Orleans,
 Louisiana.  Includes
 abstract.
 
 Language:  English
 
 Descriptors: Gossypium; Breeding aims; Resistance; Heliothis;
 Chemical constituents of plants; Plant organs; Diallel crossing
 
 
 341                            NAL Call. No.: 421 P99
 Pyrethrum resistance to attack by Thrips tabaci Lind and T.
 nigropilosus Uzel
 (Thysanoptera: Thripidae) in Kenya.
 Anyango, J.J.
 Nakuru : The Pyrethrum Bureau; 1989 Dec.
 Pyrethrum post v. 17 (3): p. 86-89; 1989 Dec.  Includes
 references.
 
 Language:  English
 
 Descriptors: Kenya; Tanacetum cinerariifolium; Agronomic
 characteristics; Clones; Crop damage; Cultivars; Pedigree; Pest
 resistance; Thrips; Thrips tabaci; Crop yield
 
 
 342                          NAL Call. No.: SB599.J69
 A rapid method for screening sorghum for resistance to Chilo
 partellus
 (Swinhoe) (Lepidoptera: Pyralidae).
 Nwanze, K.F.; Reddy, Y.V.R.
 Clemson, S.C. : South Carolina Entomological Society; 1991 Jan.
 Journal of agricultural entomology v. 8 (1): p. 41-49; 1991 Jan. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: India; Sorghum; Chilo partellus; Seedlings; Pest
 resistance; Leaves; Screening
 
 
 343                    NAL Call. No.:  SB349.N372 1983
 Reaction of Capsicum annuum L. genotypes to Scirtothrips dorsalis
 Hood.
 Suthanthirapandain, I.R.; Murugesan, N.
 Coimbatore, India : Faculty of Horticulture, Tamil Nadu
 Agricultural
 University; 1983.
 Proceedings of National Seminar on the production technology of
 tomato and
 chillies / editors, C.R. Muthukrishnan, S. Muthuswamy, R.
 Arumugam. p.
 148-149; 1983.  Includes references.
 
 Language:  English
 
 Descriptors: Tamil nadu; Capsicum annuum; Genotypes; Pest
 resistance; Scirtothrips; Crop yield
 
 
 344                           NAL Call. No.: 500 AR44
 Reaction of cotton cultivars and lines to cotton leaf crumple
 virus.
 Wilson, F.D.; Brown, J.K.; Butler, G.D. Jr
 Tempe, Ariz. : The Academy; 1989.
 Journal of the Arizona-Nevada Academy of Science v. 23 (1): p.
 7-10; 1989.
 Includes references.
 
 Language:  English
 
 Descriptors: Arizona; California; El salvador; Nicaragua;
 Gossypium hirsutum; Cultivars; Lines; Disease resistance;
 Infection; Plant viruses
 
 
 345                           NAL Call. No.: 421 J822
 Reaction of locally improved pearl millets to three insect pests
 and two
 diseases in Senegal.
 Gahukar, R.T.
 Lanham, Md. : Entomological Society of America; 1990 Oct.
 Journal of economic entomology v. 83 (5): p. 2102-2106; 1990 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Senegal; Pennisetum americanum; Cultivars; Varietal
 resistance; Coniesta ignefusalis; Heliocheilus albipunctella; Lema;
 Plant pests; Sclerospora graminicola; Tolyposporium
 penicillariae
 
 Abstract:  Eight locally improved pearl millet
 (Pennisetumamericanum (L.) Leeke) cultivars were compared with the
 traditional cultivar 'Souna'during the 1982-1984 crop seasons for
 their reaction to the attack of three insect pests andtwo diseases
 in Senegal. In 1984, 'H9-127' harbored lower larval populations of
 Lema planifronsWeise (Coleoptera: Chrysomelidae) than seven
 cultivars tested. When the level of stalk infestation and number of
 larval Acigona ignefusalis Hampson (Lepidoptera: Pyralidae) were
 compared among the nine cultivars, none was resistant. Cultivar
 'IBV-8001' showed theleast susceptibility to Raghuva albipunctella
 De Joannis (Lepidoptera: Noctuidae),
 downymildew (caused by Sclerospora graminicola (Sacc.) Schroet.),
 and head smut (causedby Tolyposporium penicillariae Bref.). Because
 'IBV-8001' is more resistant to oneinsect pest and two diseases and
 its yields are higher than those of 'Souna', its generalcultivation
 is recommended in major millet-growing zones of Senegal.
 
 
 346                          NAL Call. No.: 464.8 P56
 Reaction of two maize synthetics to anthracnose stalk rot and
 northern corn
 leaf blight following recurrent selection for resistance to
 Diplodia stalk rot
 and European corn borer.
 Nyhus, K.A.; Russell, W.A.; Guthrie, W.D.; Martinson, C.A.
 St. Paul, Minn. : American Phytopathological Society; 1989 Feb.
 Phytopathology v. 79 (2): p. 166-169; 1989 Feb.  Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Recurrent selection; Disease resistance;
 Blights; Colletotrichum graminicola; Diplodia maydis; Ostrinia
 nubilalis; Pest resistance
 
 Abstract:  Two maize (Zea mays) synthetics, BSAA and BSBB, were
 recurrently selected for resistance to Diplodia (Diplodia maydis)
 stalk rot (DSR) and leaf feeding caused by the first-generation
 European corn borer (Ostrinia nubilalis) (ECB), based on the
 reaction of S1 lines to artificial inoculations of D. maydis and
 artificial infestations of the ECB. This study was conducted to
 determine if plant factors contributing to DSR and ECB resistance
 also conferred resistance to anthracnose stalk rot (ASR) caused by
 Colletotrichum graminicola and northern corn leaf blight (NLB)
 caused by Exserohilum turcicum. Highly significant linear
 improvements in ASR resistance were observed over cycles (C0 to C4)
 of selection in both synthetics. These improvements mirrored the
 gains reported previously for DSR resistance in BSAA and BSBB and
 suggested that a genetic correlation exists between DSR resistance
 and ASR resistance in these populations. NLB severity ratings were
 recorded on six dates throughout the growing season. A natural
 logarithm transformation was used to describe the disease progress
 curve for each of the C0 to C4 populations of each synthetic.
 Linear regression of lnNLB ratings on lnDATE (days after
 inoculation) accounted for more than 97% of the variation among
 entries when averaged over replications. Our results showed no
 concomitant improvement in NLB resistance over cycles of selection
 for ECB resistance, contradicting previous reports that 2,4-
 dihydroxy-7-methoxy-2H-1,4-benzoxazin-3-one (DIMBOA), a know
 biochemical factor in leaf-feeding resistance, confers resistance
 to NLB.
 
 
 347                          NAL Call. No.: 64.8 C883
 Reactions of eleven tetraploid and hexaploid wheat introductions to
 Hessian
 fly.
 Obanni, M.; Ohm, H.W.; Foster, J.E.; Patterson, F.L.
 Madison, Wis. : Crop Science Society of America; 1989 Mar.
 Crop science v. 29 (2): p. 267-269; 1989 Mar.  Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum durum; Triticum aestivum; Tetraploids;
 Hexaploids; Pest resistance; Lines; Mayetiola destructor;
 Biotypes; Environmental temperature; Interactions; Greenhouse
 experimentation; Growth chambers
 
 Abstract:  The expression of resistance of wheat (Triticum spp.) to
 the Hessian fly (Mayetiola destructor Say) is affected by cultivar,
 biotype, and temperature. The objectives of this study were to: (i)
 evaluate the resistance of seven durum wheat (T. durum desf.) and
 four common wheat (T.aestivum L.) introductions, and three wheat
 checks to biotypes B, D, and L of Hessian fly, and (ii) examine
 their expressions of resistance to biotype D at three temperatures.
 Tests against the three biotypes were
 conducted in a greenhouse at 19 +/- 2 degrees C; temperature
 experiments were conducted in a controlled environment chambers at
 19, 23, and 26 +/- degrees C. In all experiments, 30 seeds of each
 wheat line were planted in a row in a 54 X 36 X 8 cm wooden flat
 filled with a greenhouse soil mixture. Twenty-one days after
 infestation, the seedlings were classified as resistant or
 susceptible. The 11 wheat introductions were resistant to
 biotypes B, D, and L under greenhouse conditions. Nearly all
 seedlings of the durum lines Portugal 2536, Portugal 2852,
 Rebeiro, BD 3431 and IN 8464 (H5H5) were resistant at 19, 23, and
 26 degrees C. Fewer seedlings of the durum lines BD 3414, BD 3885,
 and PI 422297; and of the common wheat lines PI 86202, PI 117499,
 PI 134867, PI 321644, and Abe' (H5H5) were resistant at
 temperatures less than 19 degrees C. Resistance conferred by the H5
 gene was expressed in a greater percentage of seedlings of IN 8464
 than Abe, especially at temperatures less than 19 degrees C. These
 results are of practical importance to wheat breeders in tropical
 or sub-tropical regions of the world where Hessian fly is a serious
 pest of wheat.
 
 
 348                   NAL Call. No.:  SB608.M2I57 1987
 Rearing the corn earworm and fall armyworm for maize resistance
 studies.
 Burton, R.L.; Perkins, W.D.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 37-45. ill; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Georgia; Zea mays; Breeding programs; Resistance;
 Insect pests; Helicoverpa zea; Spodoptera frugiperda; Mass
 rearing; Techniques
 
 
 349                   NAL Call. No.:  SB608.M2I57 1987
 Rearing the southwestern corn borer and fall armyworms at
 Mississippi State.
 Davis, F.M.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 27-36. ill; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Mississippi; Zea mays; Breeding programs;
 Resistance; Insect pests; Diatraea grandiosella; Spodoptera
 frugiperda; Mass rearing; Techniques
 
 
 350                   NAL Call. No.:  SB608.M2I57 1987
 Recent developments in the CIMMYT Maize Program.
 Cantrell, R.P.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 2-4; 1987.
 
 Language:  English
 
 Descriptors: Mexico; Zea mays; Breeding programs; Germplasm
 releases; Resistance; Insect pests; Boring insects
 
 
 351                          NAL Call. No.: 60.18 J82
 Recurrent phenotypic selection for low grasshopper food
 preference in
 rangeland alfalfa.
 Berdahl, J.D.; Hewitt, G.B.; Miller, R.H.
 Denver, Colo. : Society for Range Management; 1990 May.
 Journal of range management v. 43 (3): p. 216-219; 1990 May. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: South Dakota; Medicago sativa; Cultivars; Germplasm;
 Strains; Pest resistance; Defoliation; Melanoplus; Orthoptera;
 Plant pests; Feeding behavior; Heritability
 
 
 352                           NAL Call. No.: 421 J822
 Recurrent seedling and individual-plant selection for potato
 leafhopper
 (Homoptera: Cicadellidae) resistance in alfalfa.
 Elden, T.C.; Elgin, J.H. Jr
 College Park, Md. : Entomological Society of America; 1987 Jun.
 Journal of economic entomology v. 80 (3): p. 690-695; 1987 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Medicago sativa; Populations; Phenotypes; Empoasca
 fabae; Pest resistance; Recurrent selection; Seedlings
 
 
 353                          NAL Call. No.: 64.8 C883
 Recurrent selection for resistance to European corn borer in a corn
 synthetic
 and correlated effects on agronomic traits.
 Klenke, J.R.; Russell, W.A.; Guthrie, W.D.
 Madison, Wis. : Crop Science Society of America; 1986 Sep.
 Crop science v. 26 (5): p. 864-868; 1986 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Ostrinia nubilalis; Pest control; Pest
 resistance; Synthetic varieties; Recurrent selection; Genetic
 analysis; Crop yield; Plant breeding
 
 
 354                           NAL Call. No.: 421 J822
 Reduced larva growth of two Leipidoptera (Noctuidae) on excised
 leaves of
 soybean infected with a mycorrhizal fungus.
 Rabin, L.B.; Pacovsky, R.S.
 College Park, Md. : Entomological Society of America; 1985 Dec.
 Journal of economic entomology v. 78 (6): p. 1358-1363; 1985 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Leaves; Cultivars; Pest resistance;
 Heliothis zea; Spodoptera frugiperda; Larvae; Pupae; Growth; Insect
 control; Soil inoculation; Glomus fasciculatus; Phosphorus
 fertilizers
 
 
 355                          NAL Call. No.: 64.8 C883
 Reduction in insecticide use associated with cotton resistant to
 pink
 bollworm.
 Wilson, F.D.; Flint, H.M.; Bariola, L.A.; Chu, C.C.
 Madison, Wis. : Crop Science Society of America; 1991 Mar.
 Crop science v. 31 (2): p. 363-366; 1991 Mar.  Includes
 references.
 
 Language:  English
 
 Descriptors: Pectinophora gossypiella; Gossypium hirsutum; Insect
 pests; Cultivars; Lines; Pest resistance; Crop yield; Lint; Fiber
 quality; Earliness; Insecticides; Application date; Application
 rates; Bolls; Crop growth stage; Ethephon; Genetic resistance
 
 Abstract:  Cotton (Gossypium hirsutum L.) growers use significant
 quantities of insecticides to control pink bollworm (PBW),
 Pectinophora gossypiella (Saunders). The germplasm line WC-12NL
 (nectariless, okra leaf, and early maturing) and 'Deltapine 61'
 (nectaried, normal leaf, and later maturing) were grown at
 Maricopa, AZ, and Brawley, CA, for three seasons. Irrigation water
 was terminated and plots were defoliated earlier than normal, a
 practice that favored the early-maturing line.
 Insecticides were applied as needed, based on PBW egg
 infestations of cotton bolls. The major objective was to
 determine whether insecticide use can be reduced or eliminated by
 growing WC-12NL. Other objectives were to compare WC-12NL with
 Deltapine 61 for PBW resistance, yield, earliness, and fiber
 properties; to study location and seasonal effects; and to
 determine whether the growth-regulating chemical ethephon (2-
 chloroethylphosphonic acid) would cause bolls to open earlier. The
 mean number of insecticide applications was 41% lower for WC-12NL
 than for Deltapine 61. First and last application dates averaged 21
 d later and 10 d earlier. respectively, for WC-12NL. WC-12NL had
 significantly less seed damage caused by PBW, yielded significantly
 more lint, was significantly earlier, but had inferior fiber
 properties compared with Deltapine 61. Ethephon treatment increased
 earliness of Deltapine 61 but did not affect that of WC-12NL,
 probably because it was applied too late.
 Location and seasonal effects and numerous interactions occurred,
 but did not alter the main conclusion that a cotton line such as
 WC-12NL (but with improved fiber properties) could be valuable in
 areas where PBW is a problem.
 
 
 356                           NAL Call. No.: 421 J822
 Relation of corn leaf aphid (Homoptera: Aphididae) colonization to
 DIMBOA
 content in maize inbred lines.
 Bing, J.W.; Guthrie, W.D.; Dicke, F.F.; Obrychi, J.J.
 Lanham, Md. : Entomological Society of America; 1990 Aug.
 Journal of economic entomology v. 83 (4): p. 1626-1632; 1990 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Inbred lines; Dimboa; Pest resistance;
 Rhopalosiphum maidis; Host parasite relationships; Incidence
 
 Abstract:  Five inbred maize (Zea mays L.) lines (B37, B73, C103,
 Mo17, and 41:2504B) were evaluated from emergence to the eight-leaf
 stage for corn leaf aphid (Rhopalosiphum maidis (Fitch))
 colonization. Concentration of 2,4-dihydroxy-7-methoxyl-1,4-
 benzoxazin-3-one (DIMBOA) in these inbred lines was analyzed from
 emergence to anthesis to determine its effect on corn leaf aphid
 colony development. Inbred line 41:2504B, which was colonized by
 corn leaf aphids as it emerged from the soil, had the highest
 DIMBOA concentration. Inbred lines B73 and B37 were low in DIMBOA
 and were colonized in the three- and six-leaf stages,
 respectively. Inbred lines C103 and Mo17 also were low in DIMBOA
 and supported small colonies after the six- and seven-leaf
 stages, respectively. Contrary to findings of previous studies,
 DIMBOA does not seem to be the primary factor conditioning
 resistance to the corn leaf aphid in these inbreds.
 
 
 357                            NAL Call. No.: 450 EU6
 Relation of cotton cultivars to the cotton-pest problem in the
 Sudan Gezira.
 Bindra, O.S.
 Wageningen : Netherlands Study Circle of Plant Breeding; 1985 Nov.
 Euphytica v. 34 (3): p. 849-856; 1985 Nov.  Includes references.
 
 Language:  English
 
 Descriptors: Sudan; Gossypium barbadense; Gossypium hirsutum;
 Cultivars; Irrigated conditions; Bemisia tabaci; Heliothis
 armigera; Pest resistance; Pest control
 
 
 358                           NAL Call. No.: 421 J822
 Relationship between gossypol gland density on cotton squares and
 resistance
 to tobacco budworm (Lepidoptera: Noctuidae) larvae.
 Parrott, W.L.; Jenkins, J.N.; Mulrooney, J.E.; McCarty, J.C. Jr;
 Shepherd, R.L.
 Lanham, Md. : Entomological Society of America; 1989 Apr.
 Journal of economic entomology v. 82 (2): p. 589-592. ill; 1989
 Apr.  Includes
 references.
 
 Language:  English
 
 Descriptors: Mississippi; Gossypium hirsutum; Cultivars; Lines;
 Pest resistance; Heliothis virescens; Larvae; Feeding behavior;
 Glands (plant); Gossypol; Plant secretions
 
 Abstract:  Young tobacco budworm, Heliothis virescens (F.), larvae
 prefer to feed along the margin area of the calyx crown of cotton
 (Gossypium hirsutum L.) squares. This area is devoid of gossypol
 glands. On resistant cotton lines, which contain glands in the
 calyx crown, the larvae feed sporadically on the tissue and avoid
 the gossypol glands. The numbers of gossypol glands on bracts of
 small squares, calyx crown, bract mid-rib, and the entire calyx
 differed significantly between a susceptible and three resistant
 cotton lines. When young larvae were placed on squares for 12 d,
 the lines with greater than 80 glands per small square bract or 30
 glands per calyx crown produced larvae
 significantly smaller than did lines with fewer glands.
 
 
 359                          NAL Call. No.: 64.8 C883
 Relationship between resistance to Hessian fly and powdery mildew
 in soft
 white spring wheat PI 468960.
 Sunderman, D.W.; Hatchett, J.H.
 Madison, Wis. : Crop Science Society of America; 1986 Sep.
 Crop science v. 26 (5): p. 1071-1072; 1986 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Mayetiola destructor; Erysiphe
 graminis; Mildews; Pest resistance; Disease resistance; Plant
 breeding; Pest control; Disease control; Biological control; Genes;
 Recombination
 
 
 360                          NAL Call. No.: SB599.J69
 Relationship of European corn borer resistance in sorghum to HCN-p
 and DIMBOA
 content in leaf and sheath-collar tissue.
 Guthrie, W.D.; Haskins, F.A.; Gorz, H.J.
 Clemson, S.C. : South Carolina Entomological Society; 1988 Jan.
 Journal of agricultural entomology v. 5 (1): p. 21-28. ill; 1988
 Jan.
 Includes references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Genotypes; Resistance; Ostrinia
 nubilalis; Leaves; Tissues; Chemical analysis; Hydrocyanic acid;
 Relationships
 
 
 361                         NAL Call. No.: QL461.E532
 Relationship of maize tissue pH and resistance to whorl leaf
 feeding and stalk
 tunneling by the European corn borer (Lepidoptera: Pyralidae).
 Byrne, P.F.; Darrah, L.L.; Simpson, K.B.; Keaster, A.J.; Barry,
 B.D.; Zuber, M.S.
 Lanham, Md. : Entomological Society of America; 1990 Aug.
 Environmental entomology v. 19 (4): p. 1091-1096; 1990 Aug. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Ostrinia nubilalis; Tissues; Ph;
 Resistance to injurious factors; Inbreeding; Genotypes
 
 Abstract:  A study was conducted to investigate whether pH values
 of selected maize, Zea mays (L.), tissues could serve as useful
 screening criteria for resistance to whorl leaf feeding and stalk
 tunneling by the European corn borer, Ostrinia nubilalis
 (Hubner). Inbred line CI31A displayed the highest whorl leaf pH and
 had the least leaf feeding. Over all six maize genotypes, however,
 only a low level of correlation (P < 0.05, r = -0.35) between whorl
 leaf ph and whorl leaf feeding was observed.
 Similarly, in a study of four inbred lines, correlations of leaf
 sheath and stalk pith pH with amount of stalk tunneling were
 inconsistent and of low magnitude. When whorl leaf, leaf sheath,
 and stalk pith pH were determined in four cycles of selection of a
 maize population which had undergone recurrent selection for
 resistance to both generations of European corn borer, no
 significant relationships between pH and cycle of selection were
 observed. Measurement of pH of these plant parts apparently would
 not be a useful technique to select genotypes resistant to
 European corn borer.
 
 
 362                           NAL Call. No.: 420 IN23
 Relative loss of seed cotton yield by jassid and bollworms in some
 cotton
 genotypes (Gossypium hirsutum L.).
 Bhat, M.G.; Joshi, A.B.; Singh, M.
 New Delhi : Entomological Society of India; 1984 Jun.
 Indian journal of entomology v. 46 (pt. 2): p. 169-173; 1984 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: India; Gossypium hirsutum; Genotypes; Earias;
 Heliothis; Pectinophora gossypiella; Pest resistance; Yield losses
 
 
 363                          NAL Call. No.: 64.8 C883
 Relative resistance of cotton lines to pink bollworm.
 Wilson, F.D.
 Madison, Wis. : Crop Science Society of America; 1990 May.
 Crop science v. 30 (3): p. 500-504; 1990 May.  Includes
 references.
 
 Language:  English
 
 Descriptors: Gossypium hirsutum; Lines; Pest resistance;
 Pectinophora gossypiella; Diallel analysis; F1 hybrids; Specific
 combining ability; General combining ability; Reciprocal effects
 
 Abstract:  Pink bollworm (PBW), Pectinophora gossypiella
 Saunders, is a serious insect pest of cotton, Gossypium hirsutum
 L., in the irrigated deserts of the southwestern USA. Several
 sources of resistance to PBW have been identified in cotton. The
 objectives of this study were to determine whether certain other
 sources are equal or superior to a resistance standard, AET-5 (as
 shown by the amount of seed damage sustained by the plants), and
 whether F1 hybrids show higher levels of resistance than expected
 based on parental response. A series of diallel and generation-mean
 experiments was grown in the field at Tempe and Maricopa, AZ, from
 1982 to 1987. No insecticide was applied. The diallel analyses
 revealed significant general and specific combining ability (GCA
 and SCA) and reciprocal effects, as well as year X GCA and year X
 SCA interactions, which complicated the
 interpretation of the data. However, it was clear that of the 13
 lines evaluated, only Stoneville 7A okra leaf was equal to AET-5 as
 a source of PBW resistance. The line 7203-14-104, while
 showing some PBW resistance, was inferior to AET-5. Furthermore
 generation-mean analysis of AET-5 X 7203-14-104 data revealed large
 nonadditive genetic effects, which would make it difficult to
 combine or transfer resistance. Texas 39C-1-L behaved
 inconsistently with respect to PBW resistance; however, this line
 has a higher yield potential than AET-5 and, from this
 standpoint, deserves continued evaluation. No F1 hybrid and only
 one F1 reciprocal hybrid had significantly lower seed damage than
 that of the lowest parent.
 
 
 364                           NAL Call. No.: QL461.G4
 Relative resistance of three soybean plant introductions to the
 soybean looper
 and velvetbean caterpillar in Georgia.
 Beach, R.M.; Todd, J.W.; Boerma, H.R.
 Tifton, Ga. : The Entomological Science Society; 1988 Oct.
 Journal of entomological science v. 23 (4): p. 399-401; 1988 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Georgia; Glycine max; Pseudoplusia includens;
 Anticarsia gemmatalis; Resistance; Plant breeding
 
 
 365                           NAL Call. No.: 420 IN23
 Relative resistance of wheat varieties to Rhizopertha dominica
 Fabricius.
 Singh, B.; Pandey, S.; Prasad, J.; Singh, Y.P.
 New Delhi : Entomological Society of India; 1986-1988.
 Indian journal of entomology v. 48 (pt.1): p. 77-81; 1986-1988. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Varieties; Pest resistance;
 Coleoptera
 
 
 366                           NAL Call. No.: 420 IN23
 Relative susceptibility of some bean genotypes to aphid, Aphis
 craccivora
 Koch.
 Gupta, R.N.; Pandey, R.C.; Katiyar, R.R.
 New Delhi : Entomological Society of India; 1985 Sep.
 Indian journal of entomology v. 47 (pt.3): p. 274-277; 1985 Sep. 
 Includes
 statistical data.  Includes references.
 
 Language:  English
 
 Descriptors: India; Beans (phaseolus); Genotypes; Susceptibility;
 Aphis craccivora; Pest resistance
 
 
 367                           NAL Call. No.: 421 J822
 Reproduction and damage by Russian wheat aphid (Homoptera: 
 Aphididae) as
 influenced by fungal endophytes and cool-season turfgrasses.
 Kindler, S.D.; Breen, J.P.; Springer, T.L.
 Lanham, Md. : Entomological Society of America; 1991 Apr.
 Journal of economic entomology v. 84 (2): p. 685-692; 1991 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: U.S.A.; Grasses; Lawns and turf; Genotypes; Pest
 resistance; Screening; Crop damage; Diuraphis noxia; Endophytes;
 Fungi; Interactions; Reproduction; Seasonal variation
 
 Abstract:  In the Pacific Northwest of the United States, certain
 cool-season turfgrasses grown for seed are colonized by Russian
 wheat aphid, Diuraphis noxia (Mordvilko). The objectives of our
 study were to determine which turf grass species are colonized and
 damaged by the aphid, to determine if genetic resistance occurs
 within genotypes of the same species, and to determine if fungal
 endophytes enhance aphid resistance in turfgrasses.
 Compared with cereal species and intermediate wheatgrass
 (Elytrigia intermedia (Host) Nevski subsp. intermedia), turfgrass
 species were not as susceptible to Russian wheat aphid. Festuca
 spp. were better hosts than other grass species. Perennial
 ryegrass (Lolium perenne L. 'Repell' and 'Regal') had resistance 6
 wk after infestation. Redtop (Agrostis alba L. 'Streaker'), sheep
 fescue (Festuca ovina L. 'Azay'), slender creeping red fescue (F.
 rubra subsp. litoralis 'Logro'), and tall fescue (F. arundinacea
 Screb. 'Mustang,' 'Apache,' and 'Rebel') had
 intermediate resistance to Russian wheat aphid feeding. 'Repell'
 and 'Regal' were infected with a fungal endophyte, Acremonium lolii
 Latch, Christenson, & Samuels. 'Mustang' was infected with
 Acremonium coenophialum Morgan-Jones & Gams, and 'Wrangler' was
 infected with an unidentified species of Acremonium. Sheep fescue
 'Bighorn' and strong creeping fed fescue (F. rubra L. subsp. rubra,
 'Ruby') were infected with Epichloe typhina (Pers. ex Fr.) Tul.
 'Repell' and 'Regal' showed the greatest resistance to aphid
 feeding, suggesting that plant resistance may have been enhanced by
 the presence of fungal endophytes. Observations suggest that
 Russian wheat aphid survival was better on isogenic lines of
 endophyte-free tall fescue and that nymphs were more sensitive to
 the presence of fungal endophyte than adults. Researchers in the
 areas of plant resistance and germplasm screening for genetic
 resistance to aphids must be cognizant of fungal endophyte and its
 effect on aphid biology.
 
 
 368                         NAL Call. No.: QL461.E532
 Reproduction of Schizaphis graminum (Homoptera: Aphididae) on
 resistant and
 susceptible wheat genotypes during simulated drought stress induced
 with
 polyethylene glycol.
 Sumner, L.C.; Dorschner, K.W.; Ryan, J.D.; Eikenbary, R.D.;
 Johnson, R.C.; McNew, R.W.
 College Park, Md. : Entomological Society of America; 1986 Jun.
 Environmental entomology v. 15 (3): p. 756-762; 1986 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Genotypes; Schizaphis graminum;
 Pest resistance; Susceptibility; Drought; Stress conditions;
 Reproduction; Population dynamics
 
 
 369                           NAL Call. No.: 421 J822
 Reproduction of the chinch bug (Heteroptera: Lygaeidae) on new
 resistance
 sources in grain sorghum.
 Mize, T.W.; Wilde, G.
 College Park, Md. : Entomological Society of America; 1986 Jun.
 Journal of economic entomology v. 79 (3): p. 664-667; 1986 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Genotypes; Pest resistance; Blissus
 leucopterus; Reproduction; Fecundity; Screening
 
 
 370                      NAL Call. No.:  SB950.3.M3J68
 Resistance and yield responses of rice cultivars to the black bug
 Scotinophara
 coarctata (F.) (Hemiptera: Pentatomidae).
 Heinrichs, E.A.; Domingo, I.T.; Castillo, E.H.
 Kuala Lumpur : The Malaysian Plant Protection Society; 1987 Jun.
 Journal of plant protection in the tropics v. 4 (1): p. 55-64; 1987
 Jun. Includes references.
 
 Language:  English
 
 Descriptors: Philippines; Oryza sativa; Cultivars; Resistance;
 Scotinophara; Yield response functions; Crop damage; Yield
 losses; Economic evaluation
 
 
 371                           NAL Call. No.: SB599.C8
 Resistance breeding in root and tuber crops at the International
 Institute of
 Tropical Agriculture (IITA), Ibadan, Nigeria.
 Hahn, S.K.; Isoba, J.C.G.; Ikotun, T.
 Guildford : Butterworths; 1989 Jun.
 Crop protection v. 8 (3): p. 147-168; 1989 Jun.  Literature review. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Nigeria; Manihot esculenta; Ipomoea batatas;
 Colocasia esculenta; Dioscorea; Xanthosoma sagittifolium; Disease
 resistance; Pest resistance; Breeding programs; Screening tests;
 Cassava mosaic virus; Xanthomonas campestris; Mononychellus
 tanajoa; Hemiptera; Cylas; Plant viruses; Pythium myriotylum; Plant
 parasitic nematodes
 
 
 372                        NAL Call. No.: SB950.A2B74
 Resistance in maize to the African armyworm, Spodoptera exempta
 (Walker)
 (Lepidoptera: Noctuidae).
 Okello-Ekochu, E.J.; Wilkins, R.M.
 London : British Crop Protection Council; 1988.
 Proceedings of the ... British Crop Protection Conference-Pests and
 Diseases
 v. 3: p. 1161-1166; 1988.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Insect pests; Spodoptera exempta; Age
 differences; Varieties; Resistance; Breeding aims
 
 
 373                           NAL Call. No.: 420 F662 Resistance in
 peanut to major arthropod pests.
 Lynch, R.E.
 Gainesville, Fla. : Florida Entomological Society; 1990 Sep.
 Florida entomologist v. 73 (3): p. 422-445; 1990 Sep.  Literature
 review.
 Includes references.
 
 Language:  English
 
 Descriptors: U.S.A.; Arachis hypogaea; Insect pests; Pest
 resistance; Literature reviews
 
 
 374                         NAL Call. No.: S542.A8A34
 Resistance in peas, Pisum sativum L., against pea leaf miner,
 Chromatomyia
 horticola.
 Sehgal, V.K.; Sen, A.; Singh, K.V.
 Canberra : Australian Centre for International Agricultural
 Research; 1987.
 ACIAR proceedings series (18): p. 299; 1987.  In the series
 analytic: Food
 legume improvement for Asian farming systems / edited by E.S.
 Wallis and D.E.
 Byth. Proceedings of international workshop held on September 1-5,
 1986, Khon
 Kaen, Thailand.
 
 Language:  English
 
 Descriptors: India; Pisum sativum; Diptera; Cultivars; Pest
 resistance; Insect control
 
 
 375                          NAL Call. No.: QL461.I57
 Resistance in sorghum to the shootfly, Atherigona soccata
 Rondani.
 Singh, B.U.; Rana, B.S.
 Oxford, Eng. : Pergamon Press; 1986.
 Insect science and its application v. 7 (5): p. 577-587; 1986. 
 Literature
 review.  Includes references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Atherigona soccata; Cultivars; Pest
 resistance; Plant breeding; Seedlings; Trichomes; Screening;
 Inheritance; Stability
 
 
 376                          NAL Call. No.: 100 N813B
 Resistance in sunflower to head infesting insects.
 Brewer, G.J.; Charlet, L.D.
 Fargo, N.D. : The Station; 1989 Mar.
 North Dakota farm research - North Dakota, Agricultural
 Experiment Station v.
 46 (5): p. 23-24; 1989 Mar.  Includes references.
 
 Language:  English
 
 Descriptors: Helianthus annuus; Germplasm; Resistance; Insect pests
 
 
 377                          NAL Call. No.: 421 EN895
 Resistance in the wild crop relatives Avena macrostachya and
 Hordeum bogdani
 to the aphid Rhopalosiphum padi.
 Weibull, J.
 Dordrecht : Kluwer Academic Publishers; 1988 Oct.
 Entomologia experimentalis et applicata v. 48 (3): p. 225-232; 1988
 Oct.
 Includes references.
 
 Language:  English
 
 Descriptors: Avena; Hordeum; Wild plants; Genetic resources; Pest
 resistance; Rhopalosiphum padi; Amino acids; Growth; Avena
 sativa; Hordeum vulgare; Plant anatomy
 
 
 378                           NAL Call. No.: 421 J822
 Resistance in triticale to the Russian wheat aphid (Homoptera:
 Aphididae).
 Webster, J.A.
 Lanham, Md. : Entomological Society of America; 1990 Jun.
 Journal of economic entomology v. 83 (3): p. 1091-1095; 1990 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: U.S.A.; Triticale; Cultivars; Lines; Pest
 resistance; Hemiptera
 
 Abstract:  The Russian wheat aphid, Diuraphis noxia (Mordvilko),
 has become a serious threat to wheat, Triticum spp., production in
 the western United States. The use of resistant wheat
 cultivars as a management strategy, for this pest is highly,
 desirable. Thus, several collections of wheat and related species
 have been tested to locate sources of resistance. The USDA-ARS
 National Triticale Collection, consisting of 731 lines, was one of
 the collections tested. Initial mass screening tests were done in
 greenhouse flats in environmental chambers. Seven triticale,
 xTriticosecale Wittmack, lines with varying degrees of resistance
 were identified. Four lines from Russia (PI 386148, PI 386149, PI
 386150, and PI 386156) and one line from California (Cl 82) were
 the most resistant in the screening tests. Additional tests were
 done with all seven lines to determine the mechanisms of
 resistance. Antibiosis appeared to be the most discernible
 mechanism of resistance, with significantly lower reproduction
 occurring on the triticales than on 'TAM W-101' wheat, Triticum
 aestivum L., or 'Snoopy' rye, Secale cereale L. Greater levels of
 resistance in the triticales over 'TAM W-101' were observed also in
 antixenosis and tolerance tests. The Russian triticales have been
 incorporated into the wheat breeding program for development of
 germplasm resistant to D. noxia.
 
 
 379                         NAL Call. No.: SB189.A1C4
 Resistance in Triticum species to the Russian wheat aphid,
 Diuraphis noxia
 (Mordvilko) (Hemiptera : Aphididae).
 Du Toit, F.; Van Niekerk, H.A.
 Szeged : Cereal Research Institute; 1985.
 Cereal research communications v. 13 (4): p. 371-378; 1985. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum monococcum; Triticum durum; Triticum
 aestivum; Resistance; Insect pests; Hemiptera
 
 
 380                            NAL Call. No.: QD1.A45 Resistance of
 cereal crops to aphids: role of allelochemicals. Corcuera, L.J.;
 Argandona, V.H.; Zuniga, G.E.
 Washington, D.C. : The Society; 1987.
 ACS Symposium series - American Chemical Society (330): p.
 129-135; 1987.
 Includes references.
 
 Language:  English
 
 Descriptors: Cereals; Pest resistance; Agricultural chemicals;
 Hemiptera
 
 
 381                          NAL Call. No.: QL461.S65
 Resistance of cotton varieties to Heliothis zea.
 Mshiu, E.P.; Young, J.H.; Willson, L.J.; Mussett, K.S.
 College Station, Tex. : Southwestern Entomological Society; 1987
 Sep.
 The Southwestern entomologist v. 12 (3): p. 183-189; 1987 Sep. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Oklahoma; Gossypium hirsutum; Varieties; Heliothis
 zea; Pest resistance; Screening; Yield losses
 
 
 382                          NAL Call. No.: S16.F5J68
 Resistance of cruciferous crops to turnip root fly.
 Ruuth, P.
 Helsinki : The Scientific Agricultural Society of Finland; 1988.
 Journal of agricultural science in Finland : 
 Maataloustieteellinen
 aikakauskirja v. 60 (4): p. 269-279; 1988.  Includes references.
 
 Language:  English
 
 Descriptors: Sweden; Cruciferae; Cultivars; Crop damage; Plant
 breeding; Pest resistance; Delia floralis; Symptoms; Wilting
 
 
 383                           NAL Call. No.: 420 EN86
 Resistance of maize genotypes to the maize stalk borer, Busseola
 fusca
 (Fuller) (Lepidoptera: Noctuidae).
 Van Rensburg, J.B.J.; Malan, C.
 Pretoria : The Society; 1990 Mar.
 Journal of the Entomological Society of Southern Africa v. 53 (1):
 p. 49-55; 1990 Mar.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Busseola fusca; Larvae; Genotypes; Pest
 resistance; Inbreeding; Antibiosis
 
 
 384                           NAL Call. No.: 470 C16C
 Resistance of maize germ plasm to European corn borer, Ostrinia
 nubilalis, as
 related to geographical origin.
 Reid, L.; Arnason, J.T.; Nozzolillo, C.; Hamilton, R.
 Ottawa, Ont. : National Research Council of Canada; 1990 Feb.
 Canadian journal of botany; Journal canadien de botanique v. 68
 (2): p.
 311-316; 1990 Feb.  Includes references.
 
 Language:  English
 
 Descriptors: Canada; Mexico; Netherlands; Switzerland; Poland;
 German federal republic; Zea mays; Ostrinia nubilalis; Insect
 pests; Pest resistance; Geographical races; Genetic variation;
 Altitude; Latitude; Plant breeding
 
 
 385                            NAL Call. No.: 500 K41
 Resistance of pepper, Capsicum annum L. to European corn borer,
 Ostrinia
 nubilalis (Hubner).
 Ajlan, A.A.; Knavel, D.E.; Rodriguez, J.G.
 Louisville, K.Y. : The Academy; 1985 Oct.
 Transactions of the Kentucky Academy of Science v. 46 (3/4): p.
 99-103; 1985
 Oct.  Includes references.
 
 Language:  English
 
 Descriptors: Kentucky; Ostrinia nubilalis; Capsicum annuum;
 Cultivars; Pest resistance; Breeding aims
 
 
 386                                       NAL Call. No.: 30 AD9
 Resistance of plants to insects.
 Maxwell, F.G.; Jenkins, J.N.; Parrott, W.L.
 San Diego, Calif. : Academic Press; 1972. Advances in agronomy v.
 24: p. 187-230; 1972.  Literature review.
 
 Language:  English
 
 Descriptors: Crops; Forest trees; Insect pests; Plant breeding;
 Pest resistance; Problem analysis; Resistance mechanisms;
 Varietal resistance; Literature reviews
 
 
 387                            NAL Call. No.: 500 K41
 Resistance of selected soybean genotypes to the twospotted spider
 mite
 Tetranychus urticae Koch (Arcarina: Tetranychidae).
 Mohammad, A.A.A.; Rodriguez, J.G.
 Louisville, K.Y. : The Academy; 1985 Oct.
 Transactions of the Kentucky Academy of Science v. 46 (3/4): p.
 92-98; 1985
 Oct.  Includes references.
 
 Language:  English
 
 Descriptors: Kentucky; Glycine max; Genotypes; Pest resistance;
 Tetranychus urticae; Testing
 
 
 388                          NAL Call. No.: SB599.J69
 Resistance of sorghum genotypes to leaf feeding by
 first-generation European
 corn borer larvae compared with maize genotypes.
 Guthrie, W.D.; Dharmalingam, S.; Jarvis, J.L.; Kindler, D.; Atkins,
 R.E.; Tseng, C.T.; Zhou, D.
 Clemson, S.C. : South Carolina Entomological Society; 1985 Apr.
 Journal of agricultural entomology v. 2 (2): p. 175-184; 1985 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Genotypes; Ostrinia nubilalis; Zea
 mays; Pest resistance
 
 
 389                          NAL Call. No.: SB599.J69
 Resistance of the soybean breeding line GatIR 81-296 to foliar
 feeding by
 three Spodoptera sp. Beach, R.M.; Todd, J.W.
 Clemson, S.C. : South Carolina Entomological Society; 1987 Jul.
 Journal of agricultural entomology v. 4 (3): p. 193-199; 1987 Jul. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Plant breeding; Pest resistance;
 Testing; Foliage; Feeding; Spodoptera frugiperda; Spodoptera
 ornithogalli; Spodoptera eridania; Laboratory tests; Bioassays
 
 
 390                           NAL Call. No.: 100 T31P
 Resistance to biotype E greenbug among sorghum hybrids in a state
 performance
 test.
 Teetes, G.L.; Peterson, G.C.; Miller, F.R.; Thindwa, H.; Pietsch,
 D.R.
 College Station, Tex. : The Station; 1989 Apr.
 PR - Texas Agricultural Experiment Station (4655): 6 p.; 1989 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Texas; Sorghum; Schizaphis graminum; Hybrids;
 Variety trials; Insect control; Irrigated stands; Crop yield;
 Lodging
 
 
 391                          NAL Call. No.: 64.8 C883
 Resistance to colonization by the wheat curl mite in Aegilops
 squarrosa and
 its inheritance after transfer to common wheat.
 Thomas, J.B.; Conner, R.L.
 Madison, Wis. : Crop Science Society of America; 1986 May.
 Crop science v. 26 (3): p. 527-530. ill; 1986 May.  Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Aegilops squarrosa; Eriophyes;
 Aceria tulipae; Wheat streak mosaic virus; Pest resistance;
 Heritability; Plant breeding
 
 
 392                    NAL Call. No.: SB191.W5I5 1988 Resistance to
 colonization by the wheat curl mite in
 Triticum-Agropyron
 hybrids and Robertsonian translocations.
 Whelan, E.D.P.; Thomas, J.B.
 Cambridge : Published by the Institute of Plant Science Research,
 Cambridge
 Laboratory; 1988.
 Proceedings of the Seventh International Wheat Genetics Symposium
 / edited by
 T.E. Miller and R.M.D. Koebner. p. 913-916; 1988.  Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Spring wheat; Cultivars; Elymus
 elongatus; Hybrids; Resistance; Eriophyes; Disease vectors; Wheat
 streak mosaic virus; Chromosome addition; Chromosome
 substitution; Monosomics; Chromosome translocation
 
 
 393                           NAL Call. No.: 420 F662
 Resistance to fall armyworm in converted sorghums.
 Diawara, M.M.; Wiseman, B.R.; Isenhour, D.J.; Lovell, G.R.
 Gainesville, Fla. : Florida Entomological Society; 1990 Mar.
 Florida entomologist v. 73 (1): p. 111-117; 1990 Mar.  Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Spodoptera frugiperda; Cultivars;
 Pest resistance; Genotypes
 
 
 394                            NAL Call. No.: 420 K13
 Resistance to first-generation European corn borer (Lepidoptera:
 Pyralidae)
 and DIMBOA concentration in midwhorl leaves of the BS9 maize
 synthetic.
 Grombacher, A.W.; Russell, W.A.; Guthrie, W.D.
 Lawrence, Kan. : The Society; 1989 Jan.
 Journal of the Kansas Entomological Society v. 62 (1): p.
 103-107; 1989 Jan.
 Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Inbred lines; Hybrids; Pest resistance;
 Ostrinia nubilalis
 
 
 395                          NAL Call. No.: 64.8 C883
 Resistance to Hessian fly from North African durum wheat
 germplasm.
 Amri, A.; Hatchett, J.H.; Cox, T.S.; Bouhssini, M.E.; Sears, R.G.
 Madison, Wis. : Crop Science Society of America; 1990 Mar15. Crop
 science v. 30 (2): p. 378-381; 1990 Mar15.  Includes
 references.
 
 Language:  English
 
 Descriptors: Tunisia; Morocco; Triticum turgidum; Triticum durum;
 Germplasm; Screening tests; Pest resistance; Mayetiola
 destructor; Biotypes; Crossing; Controlling genes; Dominant genes;
 Inheritance; Varietal susceptibility
 
 Abstract:  The development of new virulent biotypes continuously
 forces entomologists and breeders to search for new sources of
 resistance to protect common wheat (Triticum aestivum L.) from the
 Hessian fly, [Mayetiola destructor (Say)]. Two hundred and
 seventeen durum wheats (T. turgidum L. var. durum) from Tunisia
 were evaluated in a greenhouse for resistance to biotypes of GP, D,
 and L of Hessian fly. Of these, 88, 86, and 59% were
 considered potential sources of resistance to biotypes GP, D, and
 L, respectively. Twenty-five durum wheats from Morocco also were
 tested for resistance to biotypes D and L, and 60% were resistant
 to one or both biotypes. Four resistant Moroccan durum wheats, land
 races Oued Zenati and BD 1026 and cultivars Jori and Hajj Mouline,
 were intercrossed and crossed to either or both of the susceptible
 checks 'Zeramek S' and 'ACSAD 65'. Results from testing F2
 populations, F2:3 families, and testcross F1:2
 families to biotype D showed that Oued Zenati possesses two
 independent dominant genes for resistance. The other land race, BD
 0126, has a single dominant gene apparently allelic or closely
 linked to one of the genes in Oued Zenati. Resistance in Jori and
 Hajj Mouline is controlled by the same single dominant gene,
 independent of the genes in Oued Zenati and BD 0126 and of the H9
 and H1O genes in the durum wheat 'Elva'. Thus, the three genes in
 the Morocco durum wheats appear to be different from the
 previously designated genes H1 through H13, based on species of
 origin and reactions to biotypes D and L and to populations of
 Hessian fly in Morocco. The identification of a large number of
 Hessian fly-resistant durum wheats from Tunisia and Morocco, along
 with the presence of three independent genes in a sample of only
 four durum wheats from Morocco, indicates that North African durum
 germplasm is a rich source of new genes for resistance to Hessian
 fly in the USA.
 
 
 396                          NAL Call. No.: QL461.I57
 Resistance to insect pest damage in four cotton varieties in
 Ludhiana.
 Chakravarthy, A.K.; Sidhu, A.S.
 Oxford, Eng. : Pergamon Press; 1986.
 Insect science and its application v. 7 (5): p. 647-652; 1986. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Indian punjab; Gossypium arboreum; Gossypium
 hirsutum; Varieties; Insect pests; Pest resistance; Plant damage;
 Amrasca; Aphis gossypii; Earias; Pectinophora
 
 
 397                           NAL Call. No.: 421 J822
 Resistance to leaf-feeding by the fall armyworm (Lepidoptera:
 Noctuidae) in
 tissue culture derived sorghums.
 Isenhour, D.J.; Duncan, R.R.; Miller, D.R.; Waskom, R.M.;
 Hanning, G.E.; Wiseman, B.R.; Nabors, M.W.
 Lanham, Md. : Entomological Society of America; 1991 Apr.
 Journal of economic entomology v. 84 (2): p. 680-684; 1991 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Somaclonal variation; Genotypes;
 Lines; Pest resistance; Screening; Susceptibility; Crop damage;
 Spodoptera frugiperda; Feeding preferences
 
 Abstract:  Sorghum (Sorghum bicolor (L.) Moench) genotypes
 regenerated from tissue culture were evaluated under field and
 laboratory conditions for resistance to leaf-feeding by the fall
 armyworm, Spodoptera frugiperda (J. E. Smith). Two regenerated
 lines were identified as having a significantly higher level of
 resistance to fall armyworm feeding as compared with the non-
 regenerated and susceptible parent, 'Hegari'. Laboratory studies
 measuring growth and development of fall armyworm were conducted
 with meridic diets containing dried sorghum foliage from
 regenerated or non-regenerated plant material. Significant
 reductions in larval weights were detected for two R3 lines
 compared with the nonregenerated parent, suggesting that
 antibiosis may be involved. Free-choice studies revealed a
 significant degree of non-preference for the R3 line that had shown
 the greatest adverse effect on fall armyworm growth in the
 developmental studies. These results indicate that tissue
 culture-induced variations can be a viable means of generating new
 sources of genetic diversity for use in crop improvement.
 
 
 398                           NAL Call. No.: 421 J822
 Resistance to Russian wheat aphid (Homoptera: Aphididae) in barley
 genotypes.
 Robinson, J.; Vivar, H.E.; Burnett, P.A.; Calhoun, D.S.
 Lanham, Md. : Entomological Society of America; 1991 Apr.
 Journal of economic entomology v. 84 (2): p. 674-679; 1991 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Hordeum vulgare; Genotypes; Pest resistance;
 Screening; Susceptibility; Diuraphis noxia; Avena sativa; Host
 preferences
 
 Abstract:  Experiments were carried out to determine the relative
 levels of antibiosis, tolerance, and antixenosis in four barley
 (Hordeum vulgare L.) genotypes, S12 (ASE/2CM/ /B.7.6.B.B.), S13
 (Gloria/Come), S16 ('Esperanza') and S17 ('Shyri') to the Russian
 wheat aphid, Diuraphis noxia (Mordvilko). Oats (Avena sativa L.
 var. 'Paramo') were used as a resistant check. From field
 screenings, S12 and S13 were selected as resistant to D. noxia and
 S16 and S17 susceptible. S12 and S13, in comparison with S16 and
 S17, showed high levels of antibiosis, demonstrated by low rates of
 nymph production on whole plants and on excised leaves. S13 showed
 higher tolerance than the other genotypes; mature plant height was
 reduced slightly by D. noxia feeding, and dry mass foliage loss per
 unit of aphid mass produced was relatively low. No antixenosis was
 demonstrated for the barley genotypes. Overall, S12 and S13 were
 more resistant to D. noxia in terms of antibiosis and tolerance
 than S16 and S17. S13 is a widely
 tested, high-yielding barley genotype with multiple disease
 resistance and represents for breeders a useful source of
 resistance to D. noxia in a superior genetic background.
 
 
 399                          NAL Call. No.: 64.8 C883
 Resistance to Russian wheat apid in wild Hordeum species.
 Kindler, S.D.; Springer, T.L.
 Madison, Wis. : Crop Science Society of America; 1991 Jan.
 Crop science v. 31 (1): p. 94-97; 1991 Jan.  Includes references.
 
 Language:  English
 
 Descriptors: Ussr; Iran; Turkey; Iraq; Israel; Greece; Cyprus;
 German federal republic; Diuraphis noxia; Hordeum bulbosum;
 Hordeum; Hordeum vulgare; Hordeum jubatum; Hordeum murinum subsp.
 leporinum; Hordeum murinum; Wild plants; Genetic resistance; Pest
 resistance; Species differences; Genotypes; Germplasm; Screening;
 Plant introduction
 
 Abstract:  The Russian wheat aphid, Diuraphis noxia (Mordvilko), is
 a serious pest of cultivated barley, Hordeum vulgare L., grown
 where the aphid is endemic. Russian wheat aphid resistance
 identified in several wild Hordeum spp. may provide genetic
 variation necessary to breed Russian wheat aphid-resistant
 cultivated barleys. Eighty-four accessions representing seven
 species and four subspecies of wild Hordeum were screened to
 identify resistance to the Russian wheat aphid. Resistance was
 measured by plant damage, aphid reproduction, and aphid survival
 when confined to the plant for 14 d. Thirty-six of the 84
 accessions were killed in the initial screening. Of the remaining
 48 accessions, the damage rating scores (1 = no injury, 9 = dead
 plants) ranged from 1.33 to 7.67. There were intra -and
 interspecific differences among accessions, with the highest levels
 of resistance in H. bulbosum L. and H. brevisubulatum (Trin.) Link
 subsp. violaceum Boiss. & Hohen. One accession of H. bogdani Wil.
 had an intermediate level of resistance. Several accessions of H.
 bulbosum and one accession of H. brevisubulatum subsp. violaceum
 had low damage ratings, low aphid reproduction, and low leaf-
 curling ratings compared with other wild Hordeum accessions and the
 cereal cheeks. Broadening the genetic base of cultivated barley by
 the introduction of resistant alien genes may provide additional
 protection from new virulent strains or biotypes of the Russian
 wheat aphid.
 
 
 400                         NAL Call. No.: QL461.E532
 Resistance to the bird cherry-oat aphid, Rhopalosiphum padi L.
 (Homoptera:  Aphididae), in perennial gramineae and wheat X
 perennial
 gramineae hybrids.
 Tremblay, C.; Cloutier, C.; Comeau, A.
 Lanham, Md. : Entomological Society of America; 1989 Dec.
 Environmental entomology v. 18 (6): p. 921-932; 1989 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Elymus elongatus; Elymus hispidus; Elymus repens;
 Elymus angustus; Triticum aestivum; Hybrids; Rhopalosiphum padi;
 Resistance
 
 Abstract:  The potential for resistance to Rhopalosiphum padi (L.)
 was evaluated in seedlings of Agropyron elongatum (Host.) Beauv.,
 Agropyron intermedium (Host.) Beauv., Agropyron repens L. Beauv.,
 Elymus angustus Trin., and hybrids obtained from crosses between
 these perennial Gramineae and cultivated wheat, Triticum aestivum
 L. Binary choice tests designed to detect antixenosis showed that
 A. repens and the hybrid wheat x A. repens were less attractive
 than the two parental wheat varieties used to produce the hybrid (P
 < 0.05). Parameters of aphid performance, including reproductive
 rate, duration of prereproductive period, adult fresh weight, and
 aphid biomass, also allowed the detection of various levels of
 antibiosis in the four perennial grasses and hybrids tested.
 Results showed that natural resistance found in Agropyron and
 Elymus spp. can be successfully transmitted to hybrids produced
 from their crosses with cultivated wheat.
 
 
 401                          NAL Call. No.: SB599.J69
 Resistance to the fall armyworm in sorghum seedlings from
 Ethiopia and Yemen.
 Wiseman, B.R.; Lovell, G.R.
 Clemson, S.C. : South Carolina Entomological Society; 1988 Jan.
 Journal of agricultural entomology v. 5 (1): p. 17-20; 1988 Jan. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Ethiopia; Yemen democratic republic; Sorghum
 bicolor; Plant collections; Resistance; Spodoptera frugiperda;
 Seedlings; Screening tests
 
 
 402                           NAL Call. No.: 421 J822
 Resistance to the spotted alfalfa aphid (Homoptera: Aphididae) in
 simple-haired alfalfa plant introductions.
 Carter, M.R.; Manglitz, G.R.; Sorensen, E.L.
 Lanham, Md. : Entomological Society of America; 1988 Dec.
 Journal of economic entomology v. 81 (6): p. 1760-1764; 1988 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Medicago sativa; Cultivars; Plant hairs; Pest
 resistance; Therioaphis; Fecundity
 
 
 403                      NAL Call. No.:  aS21.A8U5/ARS
 Resistance to two aphid species in alfalfa introductions.
 Manglitz, G.R.; Carter, M.R.
 Washington, D.C. : The Service; 1988.
 Reprints - U.S. Department of Agriculture, Agricultural Research
 Service
 [239]: p. 36; 1988.  Includes references.
 
 Language:  English
 
 Descriptors: Nebraska; Medicago sativa; Plant introduction; Pest
 resistance; Acyrthosiphon pisum; Therioaphis
 
 
 404                           NAL Call. No.: SB599.C8
 Resistance to whitefly (Bemisia tabaci) in cotton (Gossypium
 hirsutum) in the
 Sudan.
 Sippell, D.W.; Bindra, O.S.; Khalifa, H.
 Guildford, Eng. : Butterworths; 1987 Jun.
 Crop protection v. 6 (3): p. 171-178; 1987 Jun.  Includes
 references.
 
 Language:  English
 
 Descriptors: Sudan; Gossypium hirsutum; Breeding programs;
 Resistance; Bemisia tabaci; Leaves; Morphology; Correlated traits
 
 
 405                          NAL Call. No.: 64.8 C883
 Resistance-susceptibility of maize genotypes to artificial
 infestations by
 twospotted spider mites.
 Kamali, K.; Dicke, F.F.; Guthrie, W.D.
 Madison, Wis. : Crop Science Society of America; 1989 Jul.
 Crop science v. 29 (4): p. 936-938. ill; 1989 Jul.  Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Inbred lines; Genotypes; Pest resistance;
 Tetranychus urticae; Screening tests; Susceptibility; Rating
 scales; Plant damage; Population density
 
 Abstract:  Twospotted spider mites, Tetranychus urticae K., are
 pests of maize, Zea mays L., in some areas of the USA. Resistant
 genotypes are needed to reduce plant damage caused by this pest.
 Two laboratory and three field experiments were conducted in 1986
 to determine the resistance-susceptibility of maize genotypes to an
 artificial infestation by the twospotted spider mite. Inbred line
 41:2504B was highly resistant to the twospotted spider mite in both
 laboratory and field tests. This inbred exhibited a high degree of
 antibiosis against the mite; few mites survived, and little leaf
 damage resulted from the artificial infestation. This inbred also
 is highly resistant to the European corn borer, Ostrinia nubilalis
 Hubner, and has been used as a nonrecurrent parent to develop
 several genotypes of maize resistant to this pest. Our data show
 that 41:2504B also could be used to develop genotypes of maize
 resistant to twospotted spider mites. Nine other genotypes had
 intermediate or susceptible reactions to twospotted spider mites,
 with Mo17 being the most susceptible.
 
 
 406                           NAL Call. No.: 421 J822
 Response of nectariless cotton genotypes to cotton fleahopper
 (Heteroptera:  Miridae) infestation.
 Lidell, M.C.; Niles, G.A.; Walker, J.K.
 College Park, Md. : Entomological Society of America; 1986 Oct.
 Journal of economic entomology v. 79 (5): p. 1372-1376; 1986 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Texas; Gossypium hirsutum; Genotypes; Psallus
 seriatus; Pest resistance; Lines; Cultivars; Nectar; Population
 density; Yield losses
 
 
 407                           NAL Call. No.: 421 J822
 Response of two maize synthetics to recurrent selection for
 resistance to
 first-generation European corn borer (Lepidoptera: Pyralidae) and
 Diplodia
 stalk rot.
 Nyhus, K.A.; Russell, W.A.; Guthrie, W.D.
 Lanham, Md. : Entomological Society of America; 1988 Dec.
 Journal of economic entomology v. 81 (6): p. 1792-1798; 1988 Dec. 
 Includes
 statistical data.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Crosses; Ostrinia nubilalis; Pest
 resistance; Recurrent selection; Diplodia maydis; Disease
 resistance; Statistical analysis
 
 
 408                           NAL Call. No.: 420 IN23
 Response of varieties to insecticidal treatment against major
 insect pests in
 cotton.
 Agarwal, R.A.; Gupta, G.P.; Katiyar, K.N.
 New Delhi : Entomological Society of India; 1983 Dec.
 Indian journal of entomology v. 45 (pt.4): p. 338-341; 1983 Dec.
 
 Language:  English
 
 Descriptors: Delhi; Gossypium; Varieties; Pest resistance;
 Heliothis; Hemiptera; Insect pests; Monocrotophos; Spraying
 
 
 409                          NAL Call. No.: QL461.I57
 Responses of Chilo partellus to material obtained from
 susceptible and
 resistant maize cultivars: electrophysiology and behaviour.
 Waladde, S.M.; Kahaoro, H.M.; Dokwaro, E.; Chimtawi, M.
 Oxford, Eng. : Pergamon Press; 1985.
 Insect science and its application v. 6 (3): p. 341-347. ill; 1985. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Chilo partellus; Pest resistance;
 Susceptibility; Genotypes; Stimulation
 
 
 410                          NAL Call. No.: 421 EN895
 The responses of the spotted alfalfa aphid to variation between
 plants of an
 aphid-resistant lucerne cultivar.
 Hughes, R.D.; Hughes, M.A.
 Dordrecht : Dr W. Junk Publishers; 1987 Jul.
 Entomologia experimentalis et applicata v. 44 (2): p. 177-185; 1987
 Jul.
 Includes references.
 
 Language:  English
 
 Descriptors: U.S.A.; Medicago sativa; Bioassays; Cultivars; Pest
 resistance; Therioaphis trifolii; Varieties
 
 
 411                  NAL Call. No.:  SB192.A33E17 1974
 Review of sorghum improvement and production in Uganda.
 Kwaje, S.L.
 Zomba, Malawi : Govt. Printer, [1974?]; 1974.
 Proceedings of the Fifth Eastern African Cereals Research
 Conference / edited
 by D. R. B. Manda. p. 208-218; 1974.  Includes references.
 
 Language:  English
 
 Descriptors: Uganda; Sorghum; Plant breeding; Breeding programs;
 Breeding aims; Pest resistance; Disease resistance; Crop yield
 
 
 412                          NAL Call. No.: SB931.E57
 Rice insect pests and agricultural change.
 Loevinsohn, M.A.; Litsinger, J.A.; Heinrichs, E.A.
 Boulder : Westview Press; 1988.
 The Entomology of indigenous and naturalized sysems in
 agriculture / edited by
 Marvin K. Harris and Charles E. Rogers. p. 161-182. maps; 1988.
 (Westview
 studies in insect biology).  Includes references.
 
 Language:  English
 
 Descriptors: Oryza; Oryza sativa; Varieties; Wild plants; Crop
 loss; Insect pests; Light traps; Pest resistance; Screening
 
 
 413                          NAL Call. No.: 100 AR42F
 The role genetic engineering crop pest control. Stewart, J.M.
 Fayetteville, Ark. : The Station; 1990 May.
 Arkansas farm research - Arkansas Agricultural Experiment Station
 v. 39 (3):  p. 10. ill; 1990 May.
 
 Language:  English
 
 Descriptors: Gossypium; Genetic engineering; Plant breeding;
 Breeding aims; Resistance; Insect pests
 
 
 414                         NAL Call. No.: 442.8 AN72
 The role of awns in the resistance of cereals to the grain aphid,
 Sitobion
 avenae.
 Acreman, T.M.; Dixon, A.F.G.
 Warwick : Association of Applied Biologists; 1986 Oct.
 Annals of applied biology v. 109 (2): p. 375-381; 1986 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Cereals; Awns; Resistance; Sitobion avenae;
 Genotypes
 
 
 415                            NAL Call. No.: QL1.I48
 Role of chemical components of resistant and susceptible
 genotypes of cotton
 and okra in ovipositional preference of cotton leafhopper.
 Singh, R.; Agarwal, R.A.
 Bangalore : The Academy; 1988 Nov.
 Proceedings : Animal sciences - Indian Academy of Sciences v. 97
 (6): p.
 545-550; 1988 Nov.  Includes references.
 
 Language:  English
 
 Descriptors: India; Gossypium hirsutum; Hibiscus abelmoschus;
 Amrasca; Oviposition; Chemical constituents of plants;
 Nutritional intervention; Genotypes; Variety trials; Pest
 resistance; Susceptibility
 
 
 416                            NAL Call. No.: 421 B87
 The role of host plant resistance in insect pest mis-management.
 Van Emden, H.F. London : Commonwealth Agricultural Bureaux
 International; 1991 Jun.
 Bulletin of entomological research v. 81 (2): p. 123-126; 1991 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Crops; Insect pests; Interactions; Pest management;
 Pest resistance; Problem analysis; Transgenics; Varietal
 resistance; Yield losses
 
 
 417                            NAL Call. No.: 450 C16
 Russian wheat aphid (Diuraphis noxia) resistance in wheat and
 related species.
 Nkongolo, K.K.; Quick, J.S.; Limin, A.E.; Fowler, D.B.; Peairs,
 F.B.; Meyer, W.L.
 Ottawa : Agricultural Institute of Canada; 1990 Jul.
 Canadian journal of plant science; Revue canadienne de
 phytotechnie v. 70 (3):  p. 691-698; 1990 Jul.  Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum; Triticum turgidum; Triticum aestivum;
 Hemiptera; Insect pests; Plant breeding; Pest resistance;
 Cultivars; Genetic analysis; Gene expression; Hybrids;
 Hexaploids; Geographical races; Interspecific hybridization
 
 
 418                    NAL Call. No.:  SB945.A5R8 1987
 Russian wheat aphid plant resistance research in Oklahoma.
 Webster, J.A.; Merkle, O.G.; Burton, R.L.
 Stillwater, Okla. : Cooperative Ext Service, Div of Agriculture,
 Oklahoma
 State Univ, [1987?]; 1987.
 Proceedings of the first Russian Wheat Aphid Conference,
 September 23, 1987, Guymon, Oklahoma / edited by Stan Coppock and
 Bill Massey. p. 46-47; 1987.
 Includes references.
 
 Language:  English
 
 Descriptors: Oklahoma; Insect pests; Hemiptera; Cereals; Breeding
 aims; Resistance
 
 
 419                   NAL Call. No.:  SB608.M2I57 1987
 Screening and breeding maize for resistance to Sesamia calamistis
 and Eldana
 saccharina.
 Bosque-Perez, N.A.; Mareck, J.H.; Dabrowski, Z.T.; Everett, L.;
 Kim, S.K.; Efron, Y.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 163-169; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Nigeria; Zea mays; Breeding programs; Screening;
 Techniques; Resistance; Sesamia calamistis; Eldana saccharina;
 Genetic resources; Identification
 
 
 420                          NAL Call. No.: SB599.J69
 Screening cereal cultivars for resistance to early-instar
 grasshoppers.
 Hinks, C.F.; Olfert, O.O.; Westcott, N.D.
 Clemson, S.C. : South Carolina Entomological Society; 1987 Oct.
 Journal of agricultural entomology v. 4 (4): p. 315-319; 1987 Oct. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum; Avena sativa; Hordeum vulgare; Secale
 cereale; Cultivars; Screening; Resistance; Melanoplus sanguinipes
 
 
 421                          NAL Call. No.: 64.8 C883
 Screening for resistance to Russian wheat aphid in triticale.
 Scott, R.A.; Worrall, W.D.; Frank, W.A.
 Madison, Wis. : Crop Science Society of America; 1991 Jan.
 Crop science v. 31 (1): p. 32-36; 1991 Jan.  Includes references.
 
 Language:  English
 
 Descriptors: Diuraphis noxia; Triticale; Genetic resistance;
 Antibiosis; Lines; Screening; Tolerance; Feeding preferences
 
 Abstract:  Resistance to Russian wheat aphid (Diuraphis noxia
 Mordvilko) (RWA) remains scarce in hexaploid wheat (Triticum
 aestivum L. em. Thell.) and has been identified only in unadapted
 wheats. Introduction of resistance from related species is a viable
 alternative. A greenhouse study was conducted to identify possible
 sources of resistance to RWA, and to examine RWA
 screening techniques. After screening 133 triticale (X
 Triticosecale Wittmack) lines in replicated flat screening tests,
 11 resistant lines were identified and evaluated along with 3
 susceptible lines and 1 susceptible wheat for antibiosis,
 antixenosis, and tolerance. In preliminary screening trials,
 correlations of 0.50 (P less than or equal to 0.05) to 0.58 (P less
 than or equal to 0.01) were found between plant damage ratings and
 plant heights. Plant damage ratings and antibiosis values also were
 correlated (r = 0.55, P less than or equal to 0.05). Antixenosis
 time periods of 24, 48, and 72 h were
 compared. There were significant differences between resistant and
 susceptible lines for antibiosis and tolerance, but not for
 antixenosis. Number of nymphs per adult ranged from 0 to 9 in
 antibiosis tests. Plant stunting ranged from 0 to 16.5 cm among
 resistant tines and from 8 to 21.5 an among susceptible lines in
 tolerance tests. Correlations among all three antixenosis
 evaluation times were significant. We concluded that excellent
 sources of RWA resistance exist in triticale, and that resistance
 is expressed primarily as antibiosis and tolerance.
 
 
 422                           NAL Call. No.: 421 J822
 Screening for sorghum line and hybrid resistance to chinch bug
 (Hemiptera:  Lygaeidae) in the greenhouse and growth chamber.
 Meehan, M.; Wilde, G. Lanham, Md. : Entomological Society of
 America; 1989 Apr.
 Journal of economic entomology v. 82 (2): p. 616-620; 1989 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Hybrids; Lines; Mortality; Pest
 resistance; Screening; Blissus leucopterus; Greenhouse
 experimentation; Growth chambers
 
 Abstract:  To test methods to screen for resistance, commercial
 sorghum hybrids and lines were subjected to nymphs and adults of
 the chinch bug, Blissus leucopterus leucopterus (Say), at the
 seedling stage in the greenhouse. A hybrid or line that had
 significantly higher plant mortality in a choice feeding test did
 not always show the same reaction in a no-choice test. 'KS 71' died
 in fewer days than 'KS 72' or 'BCK 60' in choice feeding tests, but
 the three hybrids did not differ in no-choice tests. Hybrids and
 lines tested in no-choice multiple-plant experiments tended to
 react to chinch bugs in a manner similar to previously reported
 field tests. Screening methods in the greenhouse were also compared
 with those in the growth chamber. Generally, days from infestation
 to plant death of chinch bug-infested sorghum hybrids or lines did
 not differ significantly in a greenhouse or growth chamber. Five of
 29 hybrid and line comparisons differed significantly from others
 in the growth chamber and not in the greenhouse, or vice versa.
 Differences did not tend to occur in one environment and not in the
 other. Days from investation to plant death of lines and hybrids,
 in greenhouse versus growth chamber tests agreed with those
 obtained in field tests. All lines and hybrids were eventually
 killed by the high chinch bug populations used in the experiments.
 Greenhouse or growth chamber experiments are equally effective to
 test for resistance.
 
 
 423                          NAL Call. No.: QL461.I57
 Screening maize genotypes for multiple resistance to stem-borers.
 Omolo, E.O.; Reddy, K.V.S.
 Oxford, Eng. : Pergamon Press; 1985.
 Insect science and its application v. 6 (3): p. 405-408; 1985. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Chilo partellus; Eldana saccharina;
 Sesamia calamistis; Pest resistance; Genotypes; Screening tests
 
 
 424                   NAL Call. No.:  SB608.M2I57 1987
 Screening methodologies for maize resistance to Chilo partellus
 (Lepidoptera:  Pyralidae).
 Ampofo, J.K.O.; Saxena, K.N.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 170-177.
 ill., maps; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding programs; Screening; Techniques;
 Resistance; Chilo partellus; Biology; Behavior; Plants; Damage;
 Developmental stages; Evaluation
 
 
 425                        NAL Call. No.: aSB205.S7S6
 Screening of some soybean varieties for resistance to whitefly
 (Bemisia tabaci
 Genn.).
 Arioglu, H.H.
 Ames, Iowa : The Service; 1987 Apr.
 Soybean genetics newsletter - United States, Agricultural
 Research Service v.
 14: p. 136-139; 1987 Apr.  Includes references.
 
 Language:  English
 
 Descriptors: Turkey; Glycine max; Varieties; Resistance; Insect
 pests; Bemisia tabaci; Screening tests
 
 
 426                          NAL Call. No.: 64.8 C883
 Screening soybean genotypes in the greenhouse for resistance to
 insects.
 All, J.N.; Boerma, H.R.; Todd, J.W.
 Madison, Wis. : Crop Science Society of America; 1989 Sep.
 Crop science v. 29 (5): p. 1156-1159; 1989 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Glycine max; Genotypes; Pest resistance; Screening
 tests; Heliothis zea; Heliothis virescens; Pseudoplusia
 includens; Anticarsia gemmatalis; Plathypena scabra; Spodoptera
 exigua; Spodoptera frugiperda; Defoliation; Greenhouse
 experimentation
 
 Abstract:  Insect resistance in soybean, Glycine max (L.) Merr.,
 cultivars would reduce the use of chemical insecticides,
 resulting in less risk to the environment and increased grower
 profits. The objectives of this research were to develop an
 effective greenhouse screening procedure to identify soybean
 genotypes with resistance to defoliating insects and provide
 information on the number of replications required to obtain
 desired levels of precision for the procedure. Neonate larvae were
 placed on 12- to 16-d-old potted plants. Insects had free choice
 among plants for 14 d within replicates, but larval
 movement away from a replicate was prevented by maintaining the
 potted plants in stainless steel pans containing 2 cm of water.
 Replicate blocks were separated so that leaves did not
 intermingle. Several hundred soybean genotypes were evaluated at
 one time. Defoliation of test plants by the corn earworm,
 Heliothis zea (Boddie), in the greenhouse screening system
 correlated (r = 0.60; P less than 0.01) to insect defoliation of
 soybean plants in field nurseries. The ranking of the genotypes
 based on defoliation by the corn earworm; tobacco budworm, H.
 virescens (Fabricius); soybean looper, Pseudoplusia includens
 (Walker); velvetbean caterpillar, Anticarsia gemmatalis Hubner,
 green cloverworm, Plathypena scabra (Fabricius); beet armyworm,
 Spodoptera exigua (Hubner); and fall armyworm, S. frugiperda (J.E.
 Smith), was similar in greenhouse tests. For example, feeding by
 all insect species was inbibited by Plant Introduction 229358 and
 GatIR81-296, genotypes with known multiple insect resistance. Of
 seven insect species tested, the corn earworm was the easiest to
 work with in the greenhouse screening program and required fewer
 replications than most other species to
 demonstrate stipulated levels of resistance. For example, a
 difference of 40% in the overall mean of the experiment between two
 genotypes required seven replicates with corn earworm and 18
 replicates with soybean loope
 
 
 427                         NAL Call. No.: QL483.I4J6
 Search of sources for resistance amongst newly developed early and
 medium
 maturing maize composites subjected to manual infestation of the
 stalk borer, Chilo partellus (Swinehoe).
 Siddiqui, K.H.; Marwaha, K.K.; Sarup, P.; Prakash Singh, J. New
 Delhi : Malhotra Publishing House; 1986 Dec.
 Journal of entomological research v. 10 (2): p. 155-160. ill; 1986
 Dec.
 Includes references.
 
 Language:  English
 
 Descriptors: India; Zea mays; Chilo partellus; Pest resistance;
 Germplasm
 
 
 428                            NAL Call. No.: 421 C16
 Seasonal occurrence of the pea aphid, Acyrthosiphon pisum
 (Harris) (Homoptera:  Aphididae), on cultivars of field peas in
 Manitoba and its
 effects on pea
 growth and yield.
 Soroka, J.J.; Mackay, P.A.
 Ottawa : Entomological Society of Canada; 1990 May.
 The Canadian entomologist v. 122 (5/6): p. 503-513; 1990 May. 
 Includes references.
 
 Language:  English
 
 Descriptors: Manitoba; Pisum sativum; Cultivars; Pest resistance;
 Acyrthosiphon pisum; Population density; Seed weight; Yield
 components
 
 
 429                         NAL Call. No.: QL483.I4J6
 Selection for the shoot fly, Atherigona soccata Rondani
 resistance in high
 yielding varieties of sorghum.
 Kishore, P.; Rana, B.S.; Agarwal, K.N.
 New Delhi : Malhotra Publishing House; 1985 Dec.
 Journal of entomological research v. 9 (2): p. 188-194; 1985 Dec. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Atherigona soccata; Pest
 resistance; Plant breeding; Selection; High yielding varieties
 
 
 430                         NAL Call. No.: SB299.S9A1
 Selection in sunflowers for resistance to rutherglen bug (Nysius
 vinitor).
 Downes, R.W.; Tonnet, M.L.
 Memphis, Tenn. : International Sunflower Congress; 1982 Mar14.
 Proceedings of the ... International Sunflower Conference. p.
 261-264; 1982
 Mar14.  Paper presented at the "10th International Sunflower
 Conference,"
 March 14-18, 1982, Surfers Paradise, Australia.  Includes 13
 references.
 
 Language:  English
 
 Descriptors: Australia; Helianthus annuus; Hybridization;
 Breeding aims; Pest resistance; Nysius vinitor; Elites;
 Germination; Oils; Composition
 
 
 431                           NAL Call. No.: QK1.N434
 Selection of sorghum cultivars for stem borer resistance and
 stability of
 grain yield.
 Kishore, P.; Solomon, S.; Govil, J.N. New Delhi : Today &
 Tomorrow's Printers & Publishers; 1988 Apr. New botanist v. 15
 (2/3): p. 107-112; 1988 Apr.  Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Chilo partellus; Cultivars; Plant
 pests; Insect pests; Pest resistance; Plant breeding; Selection;
 Crop yield
 
 
 432                          NAL Call. No.: 64.8 C883
 Selection-induced differences among strains of Iowa stiff stalk
 synthetic
 maize.
 Oyervides-Garcia, M.; Hallauer, A.R.
 Madison, Wis. : Crop Science Society of America; 1986 May.
 Crop science v. 26 (3): p. 506-511; 1986 May.  Includes
 references.
 
 Language:  English
 
 Descriptors: Zea mays; Synthetic varieties; Recurrent selection;
 Selection methods; Pest resistance; Yield increases; Genetic
 differences; Diallel crossing
 
 
 433                           NAL Call. No.: 60.9 AL2
 Self- and cross-fertility in alfalfa populations before and after
 selection
 for pest resistance.
 Rodriguez, J.A.; Kehr, W.R.
 s.l. : U.S. Department of Agriculture, Agricultural Research
 Service; 1981
 May.
 Report of the Alfalfa Improvement Conference (27th): p. 60; 1981
 May.  Meeting
 held July 8-10, 1980, Madison, Wisconsin.  Includes abstract.
 
 Language:  English
 
 Descriptors: Medicago sativa; Pest resistance; Selection
 criteria; Selfing; Crossing
 
 
 434                  NAL Call. No.:  SB351.S25E93 1984
 Similarities in partial resistance of lettuce to Bremia lactucae
 and leaf aphids.
 Eenink, A.H.
 Versailles : INRA; 1985.
 Colloque Eucarpia sur les legumes a feuilles : Versailles, 28-29
 fevrier, ler-2 mars 1984 : communications; Eucarpia Meeting on
 Leafy Vegetables :  Versailles, 1984 : proceedings. p. 75-86; 1985. 
 Paper presented at the
 "Eucarpia Meeting on Leafy Vegetables," February 28-March 2, 1984,
 Versailles, France.  Includes references.
 
 Language:  English
 
 Descriptors: Lactuca sativa; Bremia lactucae; Disease resistance;
 Pest resistance; Nasonovia ribisnigri; Myzus persicae;
 Macrosiphum euphorbiae; Genotypes; Varietal effects; Inheritance
 
 
 435                         NAL Call. No.: QL461.E532
 Simulation models for predicting durability of insect-resistant
 germ plasm:  Hessian fly (Diptera: Cecidomyiidae)-resistant winter
 wheat. Gould, F.
 College Park, Md. : Entomological Society of America; 1986 Feb.
 Environmental entomology v. 15 (1): p. 11-23; 1986 Feb.  Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Mayetiola destructor; Germplasm;
 Pest resistance; Adaptation; Simulation models; Cultivars;
 Biotypes
 
 
 436                           NAL Call. No.: S601.A34
 Simulations of bird cherry-oat aphid population dynamics: a tool
 for
 developing strategies for breeding aphid-resistant plants.
 Wiktelius, S.; Pettersson, J.
 Amsterdam : Elsevier; 1985 Dec.
 Agriculture ecosystems & environment v. 14 (3/4): p. 159-170. ill;
 1985 Dec.
 Includes references.
 
 Language:  English
 
 Descriptors: Sweden; Prunus padus; Cereals; Rhopalosiphum padi;
 Pest control; Biological control; Plant breeding; Pest
 resistance; Hosts of plant diseases; Simulation models;
 Population dynamics
 
 
 437                           NAL Call. No.: 421 J822
 Smoothleaf and hirsute cottons: response to insect pests and yield
 in Arizona.
 Wilson, F.D.; George, B.W.
 College Park, Md. : Entomological Society of America; 1986 Feb.
 Journal of economic entomology v. 79 (1): p. 229-232; 1986 Feb. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Arizona; Gossypium hirsutum; Cultivars; Insect pests;
 Pest resistance; Crop damage; Crop yield
 
 
 438                  NAL Call. No.:  SB192.A33E17 1974
 Sorghum and its resistance to insects.
 Barry, D.
 Zomba, Malawi : Govt. Printer, [1974?]; 1974.
 Proceedings of the Fifth Eastern African Cereals Research
 Conference / edited
 by D. R. B. Manda. p. 238-240; 1974.
 
 Language:  English
 
 Descriptors: Nigeria; Sorghum; Plant breeding; Breeding aims;
 Resistance; Insect pests
 
 
 439                           NAL Call. No.: 421 J822
 Sorghum midge (Diptera: Cecidomyiidae) adult ovipositional
 behavior on
 resistant and susceptible sorghum hybrids.
 Waquil, J.M.; Teetes, G.L.; Peterson, G.C.
 College Park, Md. : Entomological Society of America; 1986 Apr.
 Journal of economic entomology v. 79 (2): p. 530-532; 1986 Apr. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Texas; Sorghum bicolor; Hybrids; Pest resistance;
 Susceptibility; Contarinia sorghicola; Oviposition; Field
 experimentation
 
 
 440                     NAL Call. No.:  SB123.A88 1988
 Sorghum midge resistance breeding in Queensland.
 Henzell, R.G.; Brengman, R.L.
 Wagga Wagga, N.S.W., Australia : Organising Committee,
 Agricultural Research
 Institute, 1988? :.; 1988.
 Ninth Australian Plant Breeding Conference, Wagga Wagga, 27th
 June-1st July, 1988 / [edited by K.S. McWhirter, R.W. Downes, B.J.
 Read]. p. 225-226; 1988.
 
 Language:  English
 
 Descriptors: Queensland; Sorghum; Pest resistance; Contarinia
 sorghicola; Breeding aims
 
 
 441                           NAL Call. No.: 420 IN23
 Sorghum species resistant to shootfly.
 Mote, U.N.
 New Delhi : Entomological Society of India; 1984 Jun.
 Indian journal of entomology v. 46 (pt. 2): p. 241-243; 1984 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: India; Sorghum; High yielding varieties; Hybrids;
 Atherigona soccata; Carbofuran; Chemical control; Incidence; Pest
 resistance
 
 
 442                            NAL Call. No.: 450 C16
 Sources and inheritance of resistance to Russian wheat aphid in
 Triticum
 species amphiploids and Triticum tauschii.
 Nkongolo, K.K.; Quick, J.S.; Limin, A.E.; Fowler, D.B.
 Ottawa : Agricultural Institute of Canada; 1991 Jul.
 Canadian journal of plant science; Revue canadienne de
 phytotechnie v. 71 (3):  p. 703-708; 1991 Jul.  Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Triticum turgidum; Triticum;
 Genotypes; Diuraphis noxia; Plant pests; Pest resistance; Genetic
 resistance; Inheritance; Plant breeding
 
 
 443                          NAL Call. No.: 64.8 C883
 Soybean cultivar resistance to defoliating insects.
 Rowan, G.B.; Boerma, H.R.; All, J.N.; Todd, J.
 Madison, Wis. : Crop Science Society of America; 1991 May.
 Crop science v. 31 (3): p. 678-682; 1991 May.  Includes
 references.
 
 Language:  English
 
 Descriptors: Georgia; Glycine max; Cultivars; Pest resistance;
 Helicoverpa zea; Chrysodeixis includens; Anticarsia gemmatalis;
 Spodoptera exigua; Genotypes; Maturity groups; Screening; Genetic
 resistance; Varietal susceptibility
 
 Abstract:  Utilization of soybean, Glycine max (L). Merr.,
 cultivars with moderate levels of insect resistance can increase
 grower profits by reducing the use of insecticides and reduce the
 risk of insecticidal residues in the human food chain. Research was
 conducted to determine soybean cultivar variation for
 resistance to defoliation by corn earworm (CEW), Heliothis zea
 (Boddie); soybean looper (SBL), Pseudoplusia includens (Walker);
 velvetbean caterpillar (VBC), Anticarsia gemmatalis (Hubner); and
 beet armyworm (BAW), Spodoptera exigua (Hubner). Fifty-six
 Maturity Group (MG) V, VI, VII, and VIII genotypes, consisting of
 46 cultivars and 10 insect-resistant checks, were evaluated in the
 greenhouse and field. Greenhouse experiments were conducted by
 infesting 14-d-old plants with neonate larvae of CEW, SBL, or VBC.
 Amount of defoliation was visually determined 14 d after
 infestation. Field experiments were conducted at Athens, CA, by
 infesting plants in a cage with eggs or neonate larvae of CEW and
 at Midville, GA, with natural populations of BAW. Two visual
 estimates of amount of defoliation were made st Athens and three at
 Midville. There were no differences for levels of defoliation among
 the cultivars in MG V. There were significant (P < 0.05)
 differences among the cultivars in MG VI, VII, and VIII. 'Coker
 686' and 'Deltapine 566' (MG VI), 'Braxton' (MG VII), and 'Coker
 6738' (MG VIII) were the most resistant to defoliating insects in
 the greenhouse and field. These cultivars showed 50% of the
 resistance of insect-resistant checks. Partial correlation
 coefficients, after removing the effect of maturity, indicated the
 mean greenhouse ratings of the 56 genotypes were positively
 associated with the Athens field cage (r = 0.72 ) and Midville
 field (r = 0.72 ) ratings (significant at P = 0.01).
 
 
 444                           NAL Call. No.: 421 J822
 Stability of resistance in sorghum to Calocoris angustatus
 (Hemiptera:  Miridae).
 Sharma, H.C.; Lopez, V.F.
 Lanham, Md. : Entomological Society of America; 1991 Jun.
 Journal of economic entomology v. 84 (3): p. 1088-1094; 1991 Jun. 
 Includes
 references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Crop damage; Crop losses;
 Cultivars; Genotypes; Pest resistance; Stability; Calocoris
 angustatus; Population growth; Seed germination
 
 Abstract:  Eight sorghum genotypes were evaluated for resistance to
 Calocoris angustatus Lethiery (Hemiptera: Miridae) at three
 infestation levels (5, 10, and 15 pairs of adult bugs per
 panicle) over six seasons (1984-1987) under no-choice conditions in
 the head cage. 'IS 17610', and 'IS 17645' had significantly lower
 bug population increase as compared with the susceptible controls
 'CSH 1', 'CSH 5,' and 'CSH 9'. These genotypes also suffered less
 grain damage and percentage loss in grain mass and showed higher
 seed germination than the susceptible controls. 'IS 2761' and 'IS
 9692' generally had lower bug numbers, but suffered higher grain
 damage. Descriptors: Gossypium hirsutum; Cultivars; Pest
 resistance; Integrated pest management; Anthonomus grandis;
 Heliothis virescens; Pectinophora gossypiella; Meloidogyne
 incognita; Disease resistance
 
 
 447                   NAL Call. No.:  SB608.M2I57 1987
 The status of maize insect pests and the role of host plant
 resistance in
 Thailand.
 Jamornmarn, S.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987.
 Toward insect resistant maize for the Third World : proc of the
 International
 Symposium on Methodologies for Developing Host Plant
 Resistantance to Maize
 Insects, CIMMYT, Mexico, 9-14 March 1987 / sponsored by CIMMYT. p.
 275-276; 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Thailand; Zea mays; Insect pests; Hosts of plant
 pests; Resistance; Crop damage; Insect control; Control methods;
 Varietal resistance
 
 
 448                   NAL Call. No.:  SB191.R5U64 1982
 Stem borer incidence in rice exosystems in Kenya, East Africa. Ho,
 D.T.
 Los Banos, Philippines : International Rice Research Institute;
 1984.
 An overview of upland rice research : proceedings of the 1982
 Bouake, Ivory
 Coast, Upland Rice Workshop. p. 307-320; 1984.  Includes
 references.
 
 Language:  English
 
 Descriptors: Kenya; Oryza sativa; Stems; Varieties; Pest
 resistance; Boring insects; Diptera; Chilo partellus;
 Lepidoptera; Sesamia calamistis; Incidence; Population dynamics;
 Yield losses
 
 
 449                           NAL Call. No.: 421 J822
 Stibadium spumosum (Lepidoptera: Noctuidae): a potential pest of
 sunflower in Arkansas.
 Burleigh, J.G.; Katayama, R.W.; Posey, A.F.; Porter, O.A.
 College Park, Md. : Entomological Society of America; 1988 Apr.
 Journal of economic entomology v. 81 (2): p. 527-530; 1988 Apr. 
 Includes references.
 
 Language:  English
 
 Descriptors: Arkansas; Helianthus annuus; Varieties; Pest
 resistance; Lepidoptera; Larvae
 
 
 450                           NAL Call. No.: 421 J822
 Sticky-tape method to measure cultivar effect on wheat curl mite
 (Acari: Eriophyidae) populations in wheat spikes.
 Harvey, T.L.; Martin, T.J.
 College Park, Md. : Entomological Society of America; 1988 Apr.
 Journal of economic entomology v. 81 (2): p. 731-734. ill; 1988
 Apr.  Includes references.
 
 Language:  English
 
 Descriptors: Kansas; Triticum; Cultivars; Pest resistance;
 Spikes; Eriophyes; Disease vectors; Mosaic
 
 
 451                   NAL Call. No.: SB608.M2I57 1987 Studies of a
 bioassay technique for resistance evaluation of maize to the Asian
 corn borer, Ostrinia furnacalis.
 Darong, Z.; Caiceng, C.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987. Toward insect resistant maize for the Third World :
 proc of the International Symposium on Methodologies for
 Developing Host Plant Resistantance to Maize Insects, CIMMYT,
 Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 295; 1987.
 
 Language:  English
 
 Descriptors: China; Zea mays; Bioassays; Techniques; Resistance;
 Ostrinia furnacalis; Evaluation
 
 
 452                         NAL Call. No.: SB950.A1P3 Studies of
 loss estimation and relative susceptibility of genotypes of sorghum
 to earhead caterpillar (Heliothis armigera Huebner). Mote, U.N.;
 Murthy, D.K.
 London : Taylor & Francis; 1990 Apr.
 Tropical pest management v. 36 (2): p. 108-113; 1990 Apr. 
 Includes references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Genotypes; Hybrids; Varieties; Pest
 resistance; Varietal susceptibility; Heliothis armigera; Crop
 yield; Yield losses; Grain; Crop growth stage; Insecticide
 application; Hch; Insecticides; Insect control
 
 
 453                          NAL Call. No.: QL461.I57 Studies on
 the mechanism of resistance in sorghum accessions to the grain
 midge, Contarinia sorghicola Coquillet.
 Natarajan, K.; Chelliah, S.
 Oxford, Eng. : Pergamon Press; 1986.
 Insect science and its application v. 7 (6): p. 751-755; 1986. 
 Includes references.
 
 Language:  English
 
 Descriptors: Tamil nadu; Sorghum bicolor; Cultivars; Contarinia
 sorghicola; Pest resistance; Screening; Plant damage;
 Oviposition; Emergence; Development
 
 
 454                         NAL Call. No.: SB950.A1P3 Suitability
 of maize varieties for the oviposition and development of Plodia
 interpunctella (Hubner) (Lepidoptera: Pyralidae).
 Mbata, G.N.
 London : Taylor & Francis; 1990 Apr.
 Tropical pest management v. 36 (2): p. 122-127; 1990 Apr. 
 Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Hybrid varieties; Varietal susceptibility;
 Plodia interpunctella; Oviposition; Host specificity; Laboratory
 rearing; Pest resistance; Yield losses; Kernels
 
 
 455                         NAL Call. No.: QL461.E532 Sunflower
 (Helianthus) resistance to a stem weevil, Cylindrocopturus
 adspersus (Coleoptera: Curculionidae).
 Rogers, C.E.; Seiler, G.J.
 College Park, Md. : Entomological Society of America; 1985 Oct.
 Environmental entomology v. 14 (5): p. 624-628; 1985 Oct. 
 Includes references.
 
 Language:  English
 
 Descriptors: Helianthus annuus; Species; Pest resistance;
 Coleoptera
 
 
 456                           NAL Call. No.: 421 J822 Survival,
 growth, and development of southwestern corn borer (Lepidoptera:
 Pyralidae) on resistant and susceptible maize hybrids.
 Davis, F.M.; Williams, W.P.
 College Park, Md. : Entomological Society of America; 1986 Jun.
 Journal of economic entomology v. 79 (3): p. 847-850; 1986 Jun. 
 Includes references.
 
 Language:  English
 
 Descriptors: Mississippi; Zea mays; Hybrids; Diatraea
 grandiosella; Pest resistance; Survival; Growth; Development
 
 
 457                           NAL Call. No.: 421 J822 Survival,
 growth, and reproduction of the fall armyworm (Lepidoptera:
 Noctuidae) as affected by resistant corn genotypes.
 Ng, S.S.; Davis, F.M.; Williams, W.P.
 College Park, Md. : Entomological Society of America; 1985 Aug.
 Journal of economic entomology v. 78 (4): p. 967-971. ill; 1985
 Aug.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Genotypes; Pest resistance; Spodoptera
 frugiperda; Survival; Growth; Reproduction
 
 
 458                           NAL Call. No.: SB599.C8
 Survivorship of the cassava whiteflies Aleurotrachelus socialis and
 Trialeurodes variabilis (Homoptera: Aleyrodidae) under
 different cropping systems in Colombia.
 Gold, C.S.; Altieri, M.A.; Bellotti, A.C.
 Guildford : Butterworths; 1991 Aug.
 Crop protection v. 10 (4): p. 305-309; 1991 Aug.  Includes
 references.
 
 Language:  English
 
 Descriptors: Colombia; Manihot esculenta; Vigna unguiculata; Zea
 mays; Monoculture; Intercropping; Cultivars; Varietal
 susceptibility; Pest resistance; Aleyrodidae; Trialeurodes;
 Developmental stages; Survival; Population dynamics; Natural
 enemies; Parasites of insect pests; Predators of insect pests
 
 
 459                           NAL Call. No.: 421 J822
 Susceptibility of early season cotton floral bud types to thrips
 (Thysanoptera: Thripidae) damage.
 Terry, L.I.; Barstow, B.B.
 Lanham, Md. : Entomological Society of America; 1988 Dec.
 Journal of economic entomology v. 81 (6): p. 1785-1791; 1988 Dec. 
 Includes references.
 
 Language:  English
 
 Descriptors: Arizona; Gossypium hirsutum; Cultivars;
 Frankliniella; Incidence; Pest resistance; Susceptibility
 
 
 460                         NAL Call. No.: QL461.E532
 Susceptibility of 'largo' wheat to biotype B greenbug (Homoptera:
 Aphididae). Webster, J.A.; Inayatullah, C.; Merkle, O.G.
 College Park, Md. : Entomological Society of America; 1986 Jun.
 Environmental entomology v. 15 (3): p. 700-702; 1986 Jun. 
 Includes references.
 
 Language:  English
 
 Descriptors: Triticum turgidum; Crosses; Schizaphis graminum;
 Biotypes; Susceptibility; Pest resistance
 
 
 461                            NAL Call. No.: 421 C16
 Susceptibility of low- and high-glucosinolate oilseed rapes to
 damage by flea beetles, Phyllotreta spp. (Coleoptera:
 Chrysomelidae).
 Lamb, R.J.
 Ottawa : Entomological Society of Canada; 1988 Feb.
 The Canadian entomologist v. 120 (2): p. 195-196; 1988 Feb. 
 Includes references.
 
 Language:  English
 
 Descriptors: Brassica campestris; Brassica napus; Glucosinolates;
 Cultivars; Crop damage; Phyllotreta; Phyllotreta cruciferae; Pest
 resistance
 
 
 462                         NAL Call. No.: SB950.A1P3
 Susceptibility of varieties of sorghum (Sorghum bicolor Moench.)
 grain to different geographical strains of Sitophilus oryzae L.
 Holloway, G.J.
 London : Taylor & Francis; 1988 Oct.
 Tropical pest management v. 34 (4): p. 423-425, 468, 471; 1988 Oct. 
 Includes references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Varieties; Sitophilus oryzae; Plant
 pests; Pest resistance; Plant breeding; Insect control;
 Biological control; Geographical races; Susceptibility
 
 
 463                             NAL Call. No.: S51.E2
 Susceptibility of winter wheat and triticale to the Hessian fly.
 Buntin, G.D.; Raymer, P.L.
 Athens, Ga. : The Stations; 1989 Dec.
 Research bulletin - University of Georgia, Agricultural
 Experiment Stations (389): 12 p.; 1989 Dec.  Includes references.
 
 Language:  English
 
 Descriptors: Georgia; Triticum aestivum; Winter wheat; Triticale;
 Breeding aims; Resistance; Mayetiola destructor; Variety trials;
 Genotypes; Varietal susceptibility
 
 
 464                           NAL Call. No.: QL461.G4 Tarnished
 plant bug (Heteroptera: Miridae) populations on a susceptible and
 a resistant soybean.
 Lambert, L.; Snodgrass, G.L.
 Tifton, Ga. : Georgia Entomological Society; 1989 Jul.
 Journal of entomological science v. 24 (3): p. 378-380; 1989 Jul. 
 Includes references.
 
 Language:  English
 
 Descriptors: Mississippi; Glycine max; Lygus lineolaris;
 Population density; Susceptibility; Resistance; Sampling
 
 
 465                   NAL Call. No.: SB608.M2I57 1987 Techniques
 for screening maize for resistance to mites.
 Archer, T.L.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987. Toward insect resistant maize for the Third World :
 proc of the International Symposium on Methodologies for
 Developing Host Plant Resistantance to Maize Insects, CIMMYT,
 Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 178-183. ill;
 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding programs; Screening; Techniques;
 Resistance; Oligonychus pratensis; Host plants; Hosts of plant
 pests; Host parasite relationships; Evaluation
 
 
 466                   NAL Call. No.: SB608.M2I57 1987
 Technological advances for determining resistance in maize to
 Heliothis zea. Wiseman, B.R.
 Mexico, D.F., Mexico : International Maize and Wheat Improvement
 Center; 1987. Toward insect resistant maize for the Third World :
 proc of the International Symposium on Methodologies for
 Developing Host Plant Resistantance to Maize Insects, CIMMYT,
 Mexico, 9-14 March 1987 / sponsored by CIMMYT. p. 94-100. ill;
 1987.  Includes references.
 
 Language:  English
 
 Descriptors: Zea mays; Breeding programs; Resistance; Helicoverpa
 zea; Screening; Techniques
 
 
 467                          NAL Call. No.: 421 EN895 Temporary
 loss of antibiosis in plants of a lucerne cultivar selected for
 resistance to spotted alfalfa aphid.
 Hughes, R.D.; Hughes, M.A.
 Dordrecht : Kluwer Academic Publishers; 1988 Nov.
 Entomologia experimentalis et applicata v. 49 (1/2): p. 75-82; 1988
 Nov. Includes references.
 
 Language:  English
 
 Descriptors: Australian capital territory; Medicago sativa;
 Cultivars; Pest resistance; Therioaphis trifolii; Incidence;
 Temperature; Bioassays
 
 
 468                          NAL Call. No.: 64.8 C883 Terpenoid
 aldehydes in upland cottons. II. Genotypes-environment
 interactions. Altman, D.W.; Stipanovic, R.D.; Benedict, J.H.
 Madison, Wis. : Crop Science Society of America; 1989 Nov.
 Crop science v. 29 (6): p. 1451-1456; 1989 Nov.  Includes
 statistical data. Includes references.
 
 Language:  English
 
 Descriptors: Texas; Gossypium hirsutum; Genotypes; Pest
 resistance; Terpenoids; Aldehydes; Leaves; Buds; Chemical
 constituents of plants; Heritability; Genotype environment
 interaction; Stability; Genetic variation; Provenance
 
 Abstract:  Cotton (Gossypium hirsutum L.) has unique secondary
 natural products, sesqui- and sesterterpenoid aldehydes, that have
 the potential to control phytophagous insect pests, but information
 on their inheritance has been limited to only one compound,
 gossypol (G). The objective of this study was to
 determine genetic and environmental variances and interactions,
 heritability, and genotypic stability for the major nonvolatile
 terpenoids in foliar pigment glands. A genotype-by-environment
 experiment, which included 14 genotypes having from normal to very
 elevated terpenoid content, was conducted at five diverse Texas
 locations over 2 yr. Flower buds at the third-grown square stage
 and first nonglossy terminal leaves were sampled 3 wk after first
 bloom and analyzed by high performance liquid
 chromatography (HPLC) for G,p-hemigossypol quinone (HGQ), and the
 heliocides H1, H2, H3, and H4. Aniline-reation measurements were
 made for total flower bud terpenoids. The HPLC data for location
 means showed differences between the high and low values ranging
 from eightfold for leaf HGQ to less than twofold for flower bud H2.
 Genetic X environment variance components were less than genetic
 variance components in all instances and were generally very small.
 Error variance exceeded genetic variance only for HGQ, G, and H4 in
 leaves and for H4 in flower buds. Broad-sense heritabilities
 averaged 0.46, 0.94. 0.61, and 0.93 for leaves on a plot-basis,
 leaves on an entry mean-basis, flower buds on a plot-basis, and
 flowers buds on an entry mean-basis,
 respectively. Stability analyses gave regression coefficients from
 0.05 to 2.11 (1.00 defined a stable genotype.) for high-terpenoid
 lines, whereas commercial cultivars had values from 0.11 to 1.05.
 Our results indicated that plant breeders and geneticists can
 select for higher terpernoid levels if this goal is considered
 desirable in the broad context of increasing cotton host-plant
 resistance.
 
 
 469                          NAL Call. No.: 442.8 AM3 Terpenoids in
 foliar pigment glands of A, D, and AD genome cottons:
 introgression potential for pest resistance.
 Altman, D.W.; Stipanovic, R.D.; Bell, A.A.
 New York, N.Y. : Oxford University Press; 1990 Nov.
 The Journal of heredity v. 81 (6): p. 447-454. ill; 1990 Nov. 
 Includes references.
 
 Language:  English
 
 Descriptors: Gossypium; Gossypium hirsutum; Genomes; Terpenoids;
 Plant pigments; Plant glands; Plant morphology; Introgression;
 Interspecific hybridization; Leaves; Buds; Seeds; Insect pests;
 Pest resistance
 
 Abstract:  High-performance liquid chromatographic analyses showed
 that leaves of 58 accessions of 18 species of Gossypium exhibited
 relatively consistent differences in terpenoids among species.
 Cotton terpenoids, such as gossypol, are economically important
 secondary metabolites that accumulate primarily in gland structures
 throughout the plant. Color and other
 morphological characters associated with foliar pigment glands also
 were distinctive in this germplasm and could be important for
 taxonomic and evolutionary studies. Upland cotton (G.
 hirsutum) was crossed with G. raimondii, a species that produces
 the unique terpenoid, raimondal. In the interspecific hybrids, we
 detected raimondal concentrations in leaves and flower buds that
 averaged 9% and 12.3%, respectively, of the level in G.
 raimondii. Large reductions occurred in the quantity of para-
 oxidation terpenoids in the hybrids in comparison to the
 cultivated cotton parents; these reductions were not associated
 with major changes in the number or size of the glands. Thus,
 terpenoid introgression for profile shifts are possible but will
 require careful progeny selection to maximize expression.
 
 
 470                           NAL Call. No.: 100 L936 Total seed
 gossypol in bullworm-tobacco budworm resistant experimental cotton
 strains.
 Jones, J.E.; Dickson, J.I.; Bartkiewicz, S.A.
 Baton Rouge, La. : The Department; 1989.
 Report of projects - Louisiana Agricultural Experiment Station,
 Department of Agronomy. p. 22-25; 1989.  Includes references.
 
 Language:  English
 
 Descriptors: Gossypium; Strains; Resistance; Helicoverpa zea;
 Heliothis virescens; Seeds; Gossypol
 
 
 471                   NAL Call. No.: SB608.M2I57 1987 Toward insect
 resistant maize for the Third World proceedings of the
 International Symposium on Methodologies for Developing Host Plant
 Resistance to Maize Insects, CIMMYT, Mexico, 9-14 March 1987.
 Keyser, Janet; Russell, Nathan
 International Maize and Wheat Improvement Center
 International Symposium on Methodologies for Developing Host Plant
 Resistance to Maize Insects 1987 : International Maize and Wheat
 Improvement Center. Mexico, D.F., Mexico : International Maize and
 Wheat Improvement Center,; 1989.
 vii, 327 p. : ill. ; 30 cm.  Abstracts also in French and
 Spanish.  Edited by Janet Keyser and Nathan Russell.  Includes
 bibliographical references.
 
 Language:  English
 
 Descriptors: Corn; Disease and pest resistance; Developing
 countries; Congresses; Corn; Disease and pest resistance;
 Developing countries; Genetic aspects; Congresses; Corn;
 Developing countries; Breeding; Congresses
 
 
 472                           NAL Call. No.: 442.8 Z8 Transfer of
 Hessian fly resistance from 'Chaupon' rye to hexaploid wheat via a
 2BS/2RL wheat-rye chromosome translocation.
 Friebe, B.; Hatchett, J.H.; Sears, R.G.; Gill, B.S.
 Berlin, W. Ger. : Springer International; 1990.
 Theoretical and applied genetics v. 79 (3): p. 385-389. ill; 1990. 
 Includes references.
 
 Language:  English
 
 Descriptors: Secale cereale; Triticum aestivum; Mayetiola
 destructor; Intergeneric hybridization; Chromosome translocation;
 Addition lines; Translocation lines; C bands; Polyploidy; Genetic
 resistance; Antibiosis; Larvae; Mortality
 
 
 473                 NAL Call. No.: 100 K13S (4) no.49
 Transference of Hessian fly resistance and other characteristics of
 Marquillo spring wheat to winter wheat.
 Painter, Reginald H.
 Manhattan, Kan. : Agricultural Experiment Station, Kansas State
 College of Agriculture and Applied Science,; 1940.
 55 p. : ill. ; 23 cm. (Technical bulletin (Kansas Agricultural
 Experiment Station) ; 49.).  Cover title.  Bibliography: p. 53-54.
 
 Language:  English
 
 Descriptors: Hessian flies; Winter wheat
 
 
 474                         NAL Call. No.: SB327.A1B5
 Transferring genes for arcelin protein from wild to cultivated
 beans: implications for bruchid resistance.
 Harmsen, R.; Bliss, F.A.; Cardona, C.; Posso, C.E.; Osborn, T.C.
 Geneva, N.Y. : Bean Improvement Cooperative; 1988.
 Annual report of the Bean Improvement Cooperative v. 31: p. 54-55;
 1988. Includes references.
 
 Language:  English
 
 Descriptors: Phaseolus vulgaris; Genes; Transfers; Proteins;
 Resistance; Insect pests; Zabrotes subfasciatus
 
 
 475                             NAL Call. No.: 10 OU8
 Transforming plants as a means of crop protection against
 insects. Hilder, V.A.; Gatehouse, A.M.R.
 Oxon : C.A.B. International; 1990 Sep.
 Outlook on agriculture v. 19 (3): p. 179-183. ill; 1990 Sep. 
 Literature review.  Includes references.
 
 Language:  English
 
 Descriptors: Plant protection; Genetic engineering; Genetic
 transformation; Insect control; Pest resistance; Amino acid
 sequences; Literature reviews
 
 
 476                            NAL Call. No.: QD1.A45 Transgenic
 crop varieties resistant to insects.
 Vaeck, M.; Reynaerts, A.; Hofte, H.; Mellaert, H. van
 Washington, D.C. : The Society; 1988.
 ACS Symposium series - American Chemical Society (379): p.
 280-283; 1988. Includes references.
 
 Language:  English
 
 Descriptors: Crops; Molecular genetics; Varieties; Insect
 control; Toxins; Inheritance
 
 
 477                           NAL Call. No.: S601.A34 Trends
 affecting research strategies in plant resistance to insects.
 Smith, C.M.
 Amsterdam : Elsevier; 1986 Oct.
 Agriculture, ecosystems and environment v. 18 (1): p. 1-7; 1986
 Oct.  Includes references.
 
 Language:  English
 
 Descriptors: Developing countries; Crops; Insect pests; Pest
 resistance; Germplasm; Genetic resources; Bioassays; Insect control
 
 
 478                            NAL Call. No.: 472 N21 Tritrophic
 effects of a simple architectural mutation in pea plants.
 Kareiva, P.; Sahakian, R.
 London : Macmillan Magazines Ltd; 1990 May31.
 Nature v. 345 (6274): p. 433-434; 1990 May31.  Includes
 references.
 
 Language:  English
 
 Descriptors: Pisum sativum; Acyrthosiphon pisum; Coccinella
 septempunctata; Adonia variegata; Genetics; Morphology;
 Resistance; Predators of insect pests
 
 Abstract:  When studying interactions between trophic levels,
 ecologists often restrict their attention to two levels as a means
 of simplifying the analysis; unfortunately, this
 simplification can be misleading if tritrophic interactions (such
 as plant-herbivore-predator) cannot be understood by simply adding
 together pairwise interactions (plant-herbivore plus herbivore-
 predator, for example). We examined the significance of tritrophic
 interactions by asking how the morphology of the common pea (Pisum
 sativum) influences the population growth of pea aphids
 (Acyrthosiphon pisum) in the presence and in the absence of a third
 trophic level. We found significant
 interactions between the first trophic level (peas) and the third
 trophic level (ladybird beetles) in determining aphid population
 growth. Our results point out how simple genetic changes can yield
 morphological variants in plants that differ dramatically in their
 resistance to herbivores due to the effects of plant architecture
 on enemies of the herbivore.
 
 
 479                          NAL Call. No.: 64.8 C883 Turkish
 alfalfa cultivars screened for alfalfa weevil resistance.
 Ratcliffe, R.H.; Elgin, J.H. Jr
 Madison, Wis. : Crop Science Society of America; 1990 Sep.
 Crop science v. 30 (5): p. 994-996; 1990 Sep.  Includes
 references.
 
 Language:  English
 
 Descriptors: Turkey; Medicago sativa; Cultivars; Provenance;
 Genetic variation; Screening; Antibiosis; Nonpreference; Hypera
 postica; Larvae; Survival; Weight
 
 Abstract:  Alfalfa (Medicago sativa L.) cultivars have been
 developed with tolerance to the alfalfa weevil [Hypera postica
 (Gyllenhal)], but not antibiosis or nonpreference. This study
 evaluated 28 Turkish alfalfa cultivars as sources of resistance
 expressed as antibiosis or feeding nonpreference. One hundred
 plants of each cultivar were tested in the laboratory to
 characterize resistance. Resistance was evaluated by caging 10
 neonate alfalfa weevil larvae on plants for 8 d. Mean larval
 survival and weight after 8 d feeding was compared with that on the
 susceptible cultivar Ranger. Plants selected for resistance were
 vegetatively propagated and re-evaluated in replicated tests.
 Larval survival and development on Turkish cultivars did no differ
 from that on Ranger although larval survival was lower on three
 selected clones in one experiment. These clones did not demonstrate
 resistance when retested approximately 2 mo later. None of the
 Turkish cultivars appeared to be promising sources of antibiosis or
 nonpreference.
 
 
 480                          NAL Call. No.: 100 M69MI Two new
 cotton germplasm lines Miscot 7813 and Miscot 7841. Mississippi
 State, Miss. : The Station; 1986 Jun.
 MAFES research highlights - Mississippi Agricultural & Forestry
 Experiment Station v. 49 (6): p. 2. ill; 1986 Jun.
 
 Language:  English
 
 Descriptors: Mississippi; Gossypium; Lines; Crosses; Heliothis
 virescens; Pest resistance
 
 
 481                           NAL Call. No.: 421 J822 Twospotted
 spider mite (Acari: Tetranychidae) infestations on soybeans: effect
 on composition and growth of susceptible and resistant cultivars.
 Hildebrand, D.F.; Rodriguez, J.G.; Brown, G.C.;
 Volden, C.S. College Park, Md. : Entomological Society of
 America; 1986 Aug. Journal of economic entomology v. 79 (4): p.
 915-921; 1986 Aug.  Includes references.
 
 Language:  English
 
 Descriptors: Glycine max; Cultivars; Pest resistance; Tetranychus
 urticae; Plant damage; Growth; Dry matter accumulation;
 Chlorophyll; Carotenoids; Chemical constituents of plants; Seeds
 
 
 482                          NAL Call. No.: 64.8 C883 Use of
 greenbug biotype mixtures in evaluating wheat seedlings for
 resistance. Tyler, J.M.; Webster, J.A.; Merkle, O.G.
 Madison, Wis. : Crop Science Society of America; 1987 Mar.
 Crop science v. 27 (2): p. 350-351; 1987 Mar.  Includes
 references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Resistance to parasites;
 Schizaphis graminum; Biotypes; Mixtures; Screening tests;
 Genotypes; Plant breeding methods
 
 Abstract:  Currently, no single source of greenbug [Schizaphis
 graminum (Rondani)] resistance in wheat (Triticum aestivum L.)
 germplasm available to wheat breeders provides resistance to all
 known greenbug biotypes in the field. Therefore, two sources of
 resistance are being combined in several wheat breeding programs.
 This requires the evaluation of progeny for reaction to two
 greenbug biotypes instead of one. Our objective was to test the
 efficacy of infesting seedlings in the greenhouse with greenbugs of
 two biotypes simultaneously. Such a procedure, if feasible, could
 economize breeding protocols. OK81322, resistant to
 biotypes B and C, a 'Largo' derivative, resistant to biotypes C and
 E, and F1 and F2 progeny from the crosses of these genotypes were
 infested with a 1:1 mixture of biotypes B and E greenbugs. All
 plants of both parental genotypes were susceptible, all F1 plants
 were resistant, and the population of F2 plants segregated for
 greenbug resistance. Results indicated that evaluation of breeding
 material with mixed greenbug populations is reliable, and this
 technique should be more efficient than conducting separate biotype
 tests.
 
 
 483                           NAL Call. No.: 60.9 AL2 Use of strain
 crosses in breeding multiple pest resistant alfalfa. Elgin, J.H. Jr
 s.l. : U.S. Department of Agriculture, Agricultural Research
 Service; 1981 May.
 Report of the Alfalfa Improvement Conference (27th): p. 58; 1981
 May.  Meeting held July 8-10, 1980, Madison, Wisconsin.  Includes
 abstract.
 
 Language:  English
 
 Descriptors: Medicago; Pest resistance; Breeding aims; Strain
 differences; Crosses
 
 
 484                           NAL Call. No.: 421 J822 Variation
 among green and wax beans in survival of larvae of a bivoltine-E
 race of the European corn borer (Lepidoptera: Pyralidae).
 Webb, D.R.; Eckenrode, C.J.; Dickson, M.H.
 College Park, Md. : Entomological Society of America; 1987 Apr.
 Journal of economic entomology v. 80 (2): p. 521-524; 1987 Apr. 
 Includes references.
 
 Language:  English
 
 Descriptors: New York; Phaseolus vulgaris; Lines; Cultivars;
 Ostrinia nubilalis; Races; Pest resistance; Larvae; Survival
 
 
 485                           NAL Call. No.: 421 J822 Variations in
 damage to wheat caused by Russian wheat aphid (Homoptera:
 Aphididae) in Texas.
 Bush, L.; Slosser, J.E.; Worrall, W.D.
 Lanham, Md. : Entomological Society of America; 1989 Apr.
 Journal of economic entomology v. 82 (2): p. 466-471; 1989 Apr. 
 Includes references.
 
 Language:  English
 
 Descriptors: Texas; Triticum aestivum; Crop damage; Hemiptera; Pest
 resistance; Varietal susceptibility
 
 Abstract:  The Russian wheat aphid, Diuraphis noxia (Mordvilko),
 was discovered in Texas on wheat, Triticum aestivum L., in 1986,
 and 17 collections from 11 Texas counties were made that same year.
 Two Russian wheat aphid collections, designated as the Randall 2290
 colony and the Swisher colony, were tested on four wheat varieties
 with three infestation levels to differentiate suseptible and
 resistant plants. Two aphids per plant were the best initial
 infestation level because higher levels caused too much damage and
 masked differences between the wheat varieties. Plant height,
 expressed as a percentage of an uninfested check, was a
 nonsubjective measure of plant response to Russian wheat aphid. In
 a second test, all 17 collections were tested on
 TX78V2290-36-1 (TXGH2290) and 'TAM 107' with an initial
 infestation level of two aphids per plant. The results from the
 second test indicated that there were significant variations in
 damage between aphid cultures, and differences between colonies
 occurred within counties and between counties. Reproductive
 capacity of Russian wheat aphid was affected by variety and was
 highest overall on TXGH2290. We suggest that TXGH2290 could be used
 as a susceptible standard in future host plant resistant studies,
 and this breeding line has been recommended for release. These
 findings indicate that there are important genetic
 differences within Russian wheat aphid.
 
 
 486                         NAL Call. No.: QL461.E532 Variations in
 feeding behavior, fecundity, and damage of biotypes B and E of
 Schizaphis graminum (Homoptera: Aphididae) on three wheat
 genotypes. Niassy, A.; Ryan, J.D.; Peters, D.C.
 College Park, Md. : Entomological Society of America; 1987 Oct.
 Environmental entomology v. 16 (5): p. 1163-1168; 1987 Oct. 
 Includes references.
 
 Language:  English
 
 Descriptors: Triticum aestivum; Genotypes; Schizaphis graminum;
 Biotypes; Feeding behavior; Pest resistance; Fecundity; Plant
 damage
 
 
 487                          NAL Call. No.: QL461.I57 Varietal
 resistance in sorghum to midge, Contarinia sorghicola Coquillett
 (Diptera: Cecidomyiidae).
 Singh, B.U.
 Oxford, Eng. : Pergamon Press; 1987.
 Insect science and its application v. 8 (2): p. 129-144; 1987. 
 Literature review.  Includes references.
 
 Language:  English
 
 Descriptors: Sorghum bicolor; Varieties; Contarinia sorghicola;
 Pest resistance; Screening; Tannins; Inheritance; Genetics
 
 
 488                          NAL Call. No.: QL461.I57 Varietal
 resistance in sorghum to spotted stem borer, Chilo partellus
 (Swinhoe).
 Singh, B.U.; Rana, B.S.
 Nairobi, Kenya : ICIPE Science Press; 1989.
 Insect science and its application v. 10 (1): p. 3-27; 1989. 
 Literature review.  Includes references.
 
 Language:  English
 
 Descriptors: India; Sorghum; Chilo partellus; Varietal
 resistance; Antibiosis; Breeding; Tolerance
 
 
 489                          NAL Call. No.: 64.8 C883 Volatile
 monoterpenes collected from the air surrounding flower buds of
 seven cotton genotypes.
 Chang, J.F.; Benedict, J.H.; Payne, T.L.; Camp, B.J.
 Madison, Wis. : Crop Science Society of America; 1988 Jul.
 Crop science v. 28 (4): p. 685-688; 1988 Jul.  Includes
 references.
 
 Language:  English
 
 Descriptors: Texas; Gossypium hirsutum; Genotypes; Anthonomus
 grandis; Monoterpenes; Insect pests; Pest resistance; Chemical
 composition; Volatile compounds
 
 Abstract:  Some volatile monoterpenes released by cotton
 (Gossypium hirsutum L.) are olfactory cues to boll weevils
 (Anthonomous grandis Boheman) and some parasites. However,
 literature examined showed no studies that described or compared
 the monoterpene odor of different cotton genotypes at different
 stages of growth or in different environments. The objective of our
 study was to determine the monoterpene composition of the air
 surrounding flower buds of five cotton genotypes ('CAMD-E',
 'SP-37', STV-213', STV-213 glandless, RDC-102 glandless, HG-1, and
 LEBO) grown under normal agronomic practices at College Station and
 Corpus Christi, TX. The monoterpenes were collected from the air
 surrounding excised buds of each genotype with a Porap ak Q
 effluvial collection system. The quantity of each monoterpene was
 determined with capillary column gas
 chromatography utilizing purified standards. The most abundant
 monoterpenes collected were alpha-pinene, beta-pinene, beta-
 myrcene, d-limonene, and beta-ocimene. The total quantity of these
 five monoterpenes was greater for buds of glanded genotypes than
 for buds of glandless genotypes. Ratios of the five
 monoterpenes provided a relatively characteristic chemical
 profile for each genotype. Quantities and ratios of the five
 monoterpenes collected from buds were dynamic in that they
 fluctuated with the age of the cotton plant and the environment in
 which the plants were grown. These results indicate that the five
 monoterpenes composing, in part, the odor of commercial upland
 cotton, may differ spatially, temporally, and genetically. This
 suggests that researchers attempting to identify attractive plant
 odors should simultaneously compare insect responses and plant odor
 composition.
 
 
 490                           NAL Call. No.: 421 J822 Weed
 management to minimize black cutworm (Lepidoptera: Noctuidae)
 damage in no-till corn.
 Engelken, L.K.; Showers, W.B.; Taylor, S.E.
 Lanham, Md. : Entomological Society of America; 1990 Jun.
 Journal of economic entomology v. 83 (3): p. 1058-1063; 1990 Jun. 
 Includes references.
 
 Language:  English
 
 Descriptors: Iowa; Zea mays; Seedlings; Crop damage; Hybrids;
 Lines; Pest resistance; Agrotis ipsilon; Crop weed competition;
 Insect control; Weed control
 
 Abstract:  Field studies were conducted in 1984 and 1985 to
 evaluate the interaction between black cutworm, Agrotis ipsilon
 (Hufnagel), damage and weed competition on no-till corn (Zea mays
 L.) growth and yields. Corn seedling damage by A. ipsilon
 introduced as third instars 5 d before planting was most severe
 when weeds were removed at the coleoptile stage and larvae were
 predicted to be fifth to sixth instars. Delaying weed removal until
 plants had attained the two-leaf stage significantly
 decreased the percentage of corn plants damaged by A. ipsilon
 larvae. A. ipsilon larvae introduced as second instars or a
 combination of neonate, second, and third instars 5 d before
 planting damaged more corn plants when weed removal was performed
 at two-leaf stage corn and larvae were predicted to be fifth to
 sixth instars. A significant relationship between the number of
 corn seedlings cut and weed population occurred for these
 introduced smaller instars when weed removal occurred at two-leaf
 stage corn. Delaying weed removal until four-leaf stage corn
 resulted in significant grain yield reductions from both weed
 competition and A. ipsilon damage in 1984 and only from weed
 competition in 1985.
 
 
 491                          NAL Call. No.: 64.8 C883 Wheat curl
 mite and wheat streak mosaic in moderate trichome density wheat
 cultivars.
 Harvey, T.L.; Martin, T.J.; Seifers, D.L.
 Madison, Wis. : Crop Science Society of America; 1990 May.
 Crop science v. 30 (3): p. 534-536; 1990 May.  Includes
 references.
 
 Language:  English
 
 Descriptors: Kansas; Triticum aestivum; Cultivars; Disease
 resistance; Wheat streak mosaic virus; Pest resistance;
 Eriophyes; Disease vectors; Plant hairs; Trichomes; Density;
 Varietal susceptibility
 
 Abstract:  The landing efficiency of the wheat curl mite (WCM),
 Eriophyes tulipae, is increased on wheat (Triticum aestivum L.)
 cultivars that have high densities of leaf trichomes. This
 results in a higher incidence of wheat streak mosaic (WSM), which
 is caused by whey streak mosaic virus (WSMV) and vectored by the
 WCM. This study was conducted to determine if moderate levels of
 leaf trichomes, found on many commonly grown cultivars, can have a
 significant effect on a cultivar's susceptibility to WSMV. Cultivar
 trichome density was assessed on greenhouse-grown
 plants. The relative ability of WCM to land on the cultivars was
 tested in the greenhouse by exposing the plants to airborne WCM and
 making WCM counts before reproduction occurred. The incidence of
 WSM in the field was assessed by the presence or absence of visual
 symptoms and numbers of WCM in spikes were measured during the 1987
 and 1988 crop years, at Hays, KS. 'Arkan' and 'TAM 108' had
 moderate trichome densities on leaves two, four, and six (three-
 leaf mean = 28.4 and 22.8 mm-2, respectively) and were more heavily
 infested by WCM in greenhouse and field tests when compared to
 cultivars (Century, TAM 107, Larned, and Newton) that have low
 trichome densities (6.0, 8.6, 5.0 and 5.7 trichomes mm-2,
 respectively). The cultivars with moderate levels of leaf trichomes
 also had more plants with WSM in both years. Cultivars (Century and
 TAM 107) with the rye (Secale cereale L.)-derived WCM resistance
 and few trichomes had the lowest incidence of WSM. Some cultivars
 now widely grown in Kansas may have sufficient pubescence to
 significantly increase their susceptibility to WSMV. New cultivars
 developed for areas where WSMV is a
 production constraint would probably benefit from having leaves
 with low trichome density.
 
 
 492                           NAL Call. No.: 421 J822 Wheat genes
 conditioning resistance to the Hessian fly (Diptera:
 Cecidoymiidae) in Morocco.
 El Bouhssini, M.; Amri, A.; Hatchett, J.H.
 College Park, Md. : Entomological Society of America; 1988 Apr.
 Journal of economic entomology v. 81 (2): p. 709-712; 1988 Apr. 
 Includes references.
 
 Language:  English
 
 Descriptors: Morocco; Triticum aestivum; Cultivars; Lines; Pest
 resistance; Mayetiola destructor; Larvae
 
 
 493                          NAL Call. No.: QL461.I57 Winter wheat
 resistance to the grain aphid Sitobion avenae (Fabr.) (Homoptera,
 Aphididae).
 Leszczynski, B.
 Oxford, Eng. : Pergamon Press; 1987.
 Insect science and its application v. 8 (2): p. 251-254; 1987. 
 Includes references.
 
 Language:  English
 
 Descriptors: Poland; Triticum aestivum; Cultivars; Sitobion avenae;
 Pest resistance; Fecundity; Population dynamics
 
 
 494                         NAL Call. No.: QL461.E532
 Within-plant patterns of Therioaphis maculata on resistant,
 tolerant, and susceptible alfalfa plants.
 Berberet, R.C.; McNew, R.W.; Dillwith, J.W.; Caddel, J.L.
 Lanham, Md. : Entomological Society of America; 1991 Apr.
 Environmental entomology v. 20 (2): p. 551-555; 1991 Apr. 
 Includes references.
 
 Language:  English
 
 Descriptors: Medicago sativa; Therioaphis trifolii form maculata;
 Pest resistance; Cultivars; Antibiosis; Varietal susceptibility
 
 Abstract:  Plant lines with resistance (antibiosis or antixenosis
 or both), tolerance, or susceptibility to the spotted alfalfa
 aphid, Therioaphis maculata (Buckton), were selected from the
 cultivar OK08 for use in studies to describe the within-plant
 pattern of the aphid in the foliar canopy of alfalfa. Aphid counts
 and damage ratings were analyzed for each node (from the crown),
 and profiles of averages per node for each alfalfa line were
 prepared to illustrate within-plant patterns. Numbers of spotted
 aphids per node or per stem on susceptible and tolerant plants were
 significantly higher than on resistant plants. After 10 d of
 infestation, damage ratings averaged over nodes were significantly
 higher for susceptible plants than for those with resistance or
 tolerance. On all three lines, the spotted alfalfa aphid showed a
 clear preference for leaf blades over petioles or stems, and the
 greatest numbers were consistently found on nodes nearest the plant
 crowns. Little upward movement on stems was evident until damage to
 leaf blades of lower nodes had resulted in necrosis and leaf drop.
 
 
 495                           NAL Call. No.: 421 J822
 Yellow sugarcane aphid (Homoptera: Aphididae): detection and
 mechanisms of resistance among Ethiopian sorghum lines.
 Webster, J.A.
 Lanham, Md. : Entomological Society of America; 1990 Jun.
 Journal of economic entomology v. 83 (3): p. 1053-1057; 1990 Jun. 
 Includes references.
 
 Language:  English
 
 Descriptors: Ethiopia; Oklahoma; Sorghum; Lines; Pest resistance;
 Sipha flava
 
 Abstract:  More than 5,000 Ethiopia lines of sorghum were
 evaluated for yellow sugarcane aphid, Sipha flava (Forbes),
 resistance. Three lines (PI 453951, PI 457709, and PI 457715) were
 moderately resistant as determined by visual damage ratings of
 seedlings in greenhouse flat tests. These lines were then subjected
 to additional tests to determine the components or mechanisms of
 resistance. All three lines exhibited antibiosis, with an average
 of 19.0, 22.3, and 25.0 nymphs per adult on PI 453951, PI 457715,
 and PI 457709, respectively, compared with 62.3 nymphs per adult on
 PI 264453, a widely used source of resistance to greenbug
 (Schizaphis graminum (Rondani)).
 Antixenosis (nonpreference) did not appear to be a resistance
 mechanism of these lines. In the tolerance test, growth of plants
 infested with yellow sugarcane aphid ranged from 77% of the
 uninfested plants of PI 457715 to 36% in PI 264453. Although the
 level of yellow sugarcane aphid resistance is not as high as the
 greenbug resistance that has been incorporated into many sorghum
 hybrids, these lines appear to be the best sources currently
 available. Thus, field tests and inheritance studies with the three
 lines are justified.
 
 
 496                          NAL Call. No.: 64.8 C883
 Yield, earliness, and fiber properties of cotton carrying
 combined traits for pink bollworm resistance.
 Wilson, F.D.
 Madison, Wis. : Crop Science Society of America; 1989 Jan.
 Crop science v. 29 (1): p. 7-12; 1989 Jan.  Includes references.
 
 Language:  English
 
 Descriptors: Arizona; California; Gossypium hirsutum; Lines;
 AMorphology; Resistance to injurious factors; Pectinophora
 gossypiella; Plant damage; Seeds; Crop yield; Lint; Fiber
 quality; Early maturation; Germplasm; Cultivars; Agronomic
 characteristics
 
 Abstract:  The nectariless (N) and okra-leaf (L) traits confer low
 levels of resistance in cotton, Gossypium hirsutum L., to pink
 bollworm (PBW), Pectinophora gossypiella (Saunders). The semi-
 smoothleaf (SS) trait reduces the amount of leaf trash in
 mechanically harvested seed-cotton. The main objective of this
 study was to compare NL (or NSSL) isolines with N (or NSS)
 isolines and with check cultivars for resistance to PBW, lint
 yield, earliness, and fiber properties. The experiments were grown
 at three locations: Tempe, AZ; Maricopa, AZ; and Brawley, CA. In
 three experiments grown without the use of insecticide, two of the
 six NL (or NSSL isolines (DES 56NL and DES 24NSSL) had
 significantly less seed damage caused by PBW, did not yield
 significantly less lint, were significantly earlier, and had
 deficient to comparable fiber properties when compared with the N
 counterpart isolines. The Stoneville 825 NL isolines yielded
 significantly more lint and had fiber properties comparable to the
 N isoline, but was not earlier and did not have less seed damage.
 All N, NL, NSS, and NSSL lines that were compared with nectaried,
 regular-leaf cultivars sustained less seed damage, and most were
 equal in lint yield and earliness. In a fourth,
 insecticide-treated experiment, DES 56NL required fewer
 insecticide applications, had significantly less seed damage, and
 was earlier maturing than the nectaried, regular-leaf Deltapine 61'
 (DPL-61) at two locations, and yielded more lint at one location.
 Fiber of DES 56NL was shorter, weaker, and coarser, but had
 elongation strength equal to that of DPL-61. In three of the four
 experiments, some year X cotton and location X cotton
 interaction effects were significant. Thus, in spite of some
 deficiencies in properties and performance, cotton germplasm lines
 are becoming available that combine PBW resistance with yield
 potential, earliness, and fiber properties that approach or equal
 those traits in cultivars.
 
 

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