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When this item is no longer needed by the department, it should be returned to the Acquisition Department, University Library. ILLINOIS NATURAL HISTORY SURVEY ale? tog i * oo BIOLOGICAL NOTES NO. 101 ILLINOIS NATURAL HISTORY SURVEY Urbana, Illinois — June 1977 A Bibliography of the Northern Corn Rootworm and the Western Corn Rootworm: An Updating through 1976 Bonnie J. Irwin STATE OF ILLINOIS Department of Registration and Education Natural History Survey Division A Bibliography of the Northern Corn Rootworm and the Western Corn Rootworm: An Updating through 1976 THE CONTINUING RESEARCH and publication of arti- cles on the northern corn rootworm, Diabrotica longi- cornis (Say), and the western corn rootworm, D. virgifera LeConte, have prompted this updating of Illinois Natural History Survey Biological Notes No. 90. Current works are included as well as older arti- cles that have been located since the April 1974 publi- cation of the original bibliography. Except for those few citations preceded by the sym- bol #, reprints or copies were obtained of each paper. These are on file at SIRIC (Soybean Insect Research Information Center, 163 Natural Resources Building, Urbana). The contents of all articles have been coded for entry into the SIRIC system, as northern and west- ern corn rootworm adults readily invade fields of soy- beans and feed on the foliage. SIRIC is a computer- ized information storage and retrieval system which deals with the literature on arthropods associated with soybeans. A “Listing of References by Rootworm Species” and a list of periodical abbreviations have again been included. The collaboration of these people is gratefully ac- knowledged: Kathy Wood for general assistance and proofreading, Mary Rose for typing, and R. M. Ze- wadski, editor, Illinois Natural History Survey, for editing. This bibliography is a contribution of the Illinois Natural History Survey and the Illinois Agricultural Experiment Station in cooperation with a multistate USEPA project, “Bionomics and Management of Soil Arthropod Pests 802547-5.” Cooperating institutions and state investigators in this project are: Missour1 —M. L. Fairchild, Principal Investigator, USEPA Soil Arthropod Project A. J. Keaster INDIANA -—E. E. Ortman, Coordinator Corn Soil Insects subproject F. T. Turpin Ittinois —W. H. Luckmann IOWA —Jon Tollefson NEBRASKA—Z. B. Mayo OHIO —R. W. Rings This paper is published by authority of the State of Illinois, IRS Ch. 127, Par. 58.12, and is a contribution from the Section of Economic En- tomology of the Illinois Natural History Survey, where B. Irwin is a Re- search Assistant. #1. no 16. . ALVAREZ, C. G. . ANONYMOUS. . ARIZONA AGRICULTURAL EXPERIMENT STATION. . Berry, P. A., and M. SALAZAR VAQUERO. ' 7 Bonnie J. Irwin. BIBLIOGRAPHY AJANI, A., and J. H. Lonnquist. 1976. Biological re- sistance to corn rootworm. Can. J. Plant Sci. 56 (2): 429. | . ALLEN, W. A. 1975. The biology and distribution of the northern corn rootworm (Diabrotica longicornis) — —a new pest in Virginia. Va. J. Sci. 26 (2) :40. Refs. 1975. Corn rootworm control with Counter. Proc. N. Cent. Br. Entomol. Soc. Amer. 30:82. 1975. The rootworm. Agrichem. Age 18 (5) :8-9. Illus. . Apple, J. W. 1949. What is new in the control of in- sect enemies of corn. Proc. Annu. Hybrid Corn Ind. Res. Conf. 4:45-57. Refs. . 1971. Response of corn to granular insecti-— ' cides applied to the row at planting. J. Econ. Ento- mol. 64 (5) :1208-1211. Illus. 1971. Insect control in field corn, sorghum, and small grains” 1971-72. Ariz. Agr. Exp. Sta. Ariz. Coop. Ext. Serv. Folder 146. 5 p. | . ARMENTA, S. C. 1974. Population fluctuations of cer- tain soybean pests and their control in the Fuerte Val-— ley, Sinaloa, Mexico. Folia Entomol. Mex. 29:65-66. . ARNOLD, E. W., and J. W. Apple. 1960. Survey to esti- mate soil insect damage to corn. Proc. N. Cent. Br. Entomol. Soc. Amer. 15:81—-83. Illus. Refs. . Batt, H. J. 1956. Effect of insecticides to corn root | growth. J. Econ. Entomol. 49 (2) :230-233. Illus. Refs. , C. A. Staetz, and G. L. Rotorson. 1975. Negative phototactic activity used to determine larval toxicity of insecticides to Diabrotica virgifera. J. Econ. Entomol. 68 (3) :293-294. Illus. Refs. . Barre, H. W., and A. F. Conrapi. 1909. Treatment of plant diseases and injurious insects in South Car-— olina. S. C. Agr. Exp. Sta. Bull. 141. 52 p. : . BarreTT, J. R., F. W. Harwoop, and H. O. Deay. 1972. Functional association of light trap catches to- emission of blacklight fluorescent lamps. Environ. En-— tomol. | (3) :285-290. Illus. Refs. 1957. Lista de insectos clasificados de El Salvador (List of classi-— fied insects of El Salvador). El Salvador Min. Agr. Ganad. Bol. Tec. 21. 134 p. . Bram, B. D., G. J. Musick, W. E. Lyon, R. E. TREECE, | D. L. Goteman, and A. C. WALDRON. 1970. Suggested guide for the use of insecticides to control insects af- fecting field corn, small grains and soybeans. Ohio- Coop. Ext. Serv. Bull. 495. 8 p. BLATCHLEY, W. S. 1910. An illustrated descriptive cat- alogue of the Coleoptera or beetles (exclusive of the Rhynchophora) known to occur in Indiana. Indiana_ Dep. Geol. Natur. Res. Bull. 1. 1386 p. (see p. 1172). Illus. Maps. #19. wae 25. 26. 28. 29. 30. 31. Bo. Be. . Bocanecra, S., and J. E. Simon F. BLICKENSTAFF, C. C., and J. L. Huccans. 1962. bean insects and related arthropods in Missouri. Agr. Exp. Sta. Res. Bull. 803. 51 p. Illus. Refs. 1958. Resultados de un experimento comparativo de insecticidas contra los insectos del maiz para grano (Results of a compar- ative experiment of insecticides against the insects of grain corn). Rev. Peru. Entomol. Agr. 1 (1) :66-—69. Illus. BonneFIL, L. 1973. Goals and means for protecting Phaseolus vulgaris in the tropics. CIAT Ser. Semin. 2¢:229-232. Soy- Mo. . Branson, T. F. 1974. Early egg hatch in an unchilled population of western corn rootworms. Proc. N. Cent. Br. Entomol. Soc. Amer. 29:195. 1976. The selection of a non-diapause strain of Diabrotica virgifera (Coleoptera: Chrysomel- idae). Entomol. Exp. Appl. 19:148—154. Illus. Refs. 1976. Viability and hatching pattern of eggs of the western corn rootworm exposed to chill periods of different durations. Entomol. Exp. Appl. 19 (1) :77-81. Illus. Refs. SS, Pp. L: Guss, J. L. Krysan, and G. R. SUTTLER. 1975. Corn rootworms: Laboratory rearing and ma- nipulation. U. S. Dep. Agr. Agr. Res. Serv. NC 28:1- 17. Illus. Refs. Brown, A. W. A. 1968. Insecticide resistance comes of age. Bull. Entomol. Soc. Amer. 14 (1) :3-9. Illus. Refs. CuHacnon, G. 1938. Contribution a l'étude des Colé- optéres de la province de Québec (A contribution to the study of the Coleoptera of Quebec Province). Na- tur. Can. 65:13-23. Illus. Cuianc, H. C. 1974. Temperature effects on hatching of eggs of the western corn rootworm, Diabrotica vir- gifera: Factual and theoretical interpretations. Ento- mol. Exp. Appl. 17:149-156. Illus. Refs. , J. A. Mim, and M. B. Winpets. 1974. Fur- ther observations on temperature effects on hatching of northern and western corn rootworm eggs. Proc. N. Cent. Br. Entomol. Soc. Amer. 29:138-141. Illus. Refs. , W. W. Netson, and R. Gorper. 1971. Dis- tribution of northern corn rootworm individuals in the soil. Proc. N. Cent. Br. Entomol. Soc. Amer. 26 (1-2) :89. _______, M. B. Winpbets, J. A. Mino, D. E. RAsMus- sEN, and L. K. Frencu. 1975. Methods of mass pro- duction of corn rootworm eggs in the laboratory and artificial field infestation techniques. Proc. N. Cent. Br. Entomol. Soc. Amer. 30:37-40. Illus. Refs. Curarappa, L., ed. 1971. Crop loss assessment meth- ods. FAO manual on the evaluation and prevention of losses by pests, diseases and weeds. Commonwealth Agricultural Bureau, Oxford. One vol. Loose leaf. Illus. CockErELL, T. D. A. 1961. Sunflower insects in Cal- ifornia and South Africa. Can. Entomol. 48 (3) :76—79. . Craic, W. S., J. L. Huceans, L. L. PETErs, and G. W. Tuomas, compilers. 1972. 1972 Missouri insect con- trol recommendations for use in 1972 only. Mo. Coop. Ext. Serv. Handb. 153 p. Illus. Daums, R. G. 1960. Use of resistant varieties—the ideal way to control insects. Plants Gard. 16 (3) :82-87. Illus. Daruincton, W. A., G. F. Lupvix, and R. M. SACHER. 1972. MON-0856: A promising new selective insecti- cide. J. Econ. Entomol. 65 (1) :48-50. Illus. Refs. 39. 40. 41. oye 43% 44. #46. 47. 48. 51. Or no Hot bas NiGRAnaAnt, le Re and! He Dp» share: . GUAGLIUMI, P. 3 . Davis, J. J., 1947. Insects of Indiana for 1946. Proc. Indiana Acad. Sci. 56:147-153. Illus. 1950. Insects of Indiana for 1950. Proc. Indiana Acad. Sci. 60:178-182. 1956. Insects of Indiana in 1956. Proc. In- diana Acad. Sci. 66:104-107. . Daynarp, T. B., C. R. Extis, B. Botwyn, and R. L. MIsENER. 1975. Effects of carbofuran on grain yield of corn. Can. J. Plant Sci. 55:637-639. Illus. Refs. Maps. Dicks, F. F. 1975. The role of insects in some dis- eases of maize. Iowa State J. Res. 49 (4, part 2) :553— 558. Refs. Esau, K. L., and D. C. Peters. 1975. Carabidae col- lected in pitfall traps in Iowa cornfields, fencerows, and prairies. Environ. Entomol. 4 (3) :509-513. Illus. Refs. Fiores, F. R., and O. F. DELL VALLEs. 1973. Eficacia de cyolane y cytrolane, insecticidas sistémicos en el control del gusano soldado Spodoptera exigua (Hiib- ner) atacando alfalfa en Torreén, Coah. (Efficiency of cyolane and cytrolane, systemic insecticides in the con- trol of Spodoptera exigua (Hiibner) attacking alfalfa in Torreon, Coah.). Folia Entomol. Mex. 25-26:62-63. Footr, W. H. 1975. Effects of granular systemic in- secticides on populations of the corn leaf aphid and yields of field corn in southwestern Ontario. Proc. En- tomol. Soc. Ont. 1974. 105:75-79. Illus. Refs. Forses, S. A. 1904. The more important insect in- juries to Indian corn. Ill. Agr. Exp. Sta. Bull. 95:329- 399. Illus. Refs. Maps. , and C. A. Harr. 1900. The economic ento- mology of the sugar beet. Ill. Agr. Exp. Sta. Bull. 60: 397-532. Illus. Refs. 5. Futton, J. P., H. A. Scott, and R. Gamez. 1975. Beetle transmission of legume viruses. Pages 123-131 in J. Bird and K. Maramorosch, eds., Tropical diseases of legumes. Academic Press, N. Y. Illus. Refs. Gamez, R. 1973. Goals and means for protecting Phaseolus vulgaris in the tropics. CIAT Ser. Semin. 2c:233-236. GarMaNn, H. 1897. Notes on several tobacco insects and on two imperfectly known diseases of tobacco. Ky. Agr. Exp. Sta. Bull. 66:33-39. Gos.e, H. W. 1970. Insects of the season 1970 related to fruit, vegetables, field crops and ornamentals. Proc. Entomol. Soc. Ont. 101:7-8. . Goutp, G. E. 1944. Insect pests of cucurbit crops in Proc Indiana Acad. Sci. 53:165-171. 1944. Corn root- worm. Nebr. Agr. Exp. Sta. Annu. Rep. 1943. 57:57— 58. 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Diabrotica longicornis (Say) (Coleoptera:Chrysomeli- dae) in Quebec). Ann. Soc. Entomol. Quebec 21 (1): 49-51. Illus. Refs. . Guss, P. L. 1976. The sex pheromone of the western corn rootworm (Diabrotica virgifera). Environ. En- tomol. 5 (2) :219-223. Illus. Refs. , T. F. Branson, and J. L. Krysan. 1974. De- velopments in large scale rearing of corn rootworms. 2. Adult considerations. Proc. N. Cent. Br. Entomol. Soc. Amer. 29:195-196. Set he Sand 1976. Adaptation of a dry diet for adults of the western corn rootworm. J. Econ. Entomol. 69 (4) :503-505. Illus. Refs. Gyrisco, G. G., and E. J. Armsrust. 1966. 1966 for- age and cereal insect recommendations. N. Y. (Cor- nell) Coll. Agr. Misc. Bull. 71. 8 p. Illus. 1894. Notes on a few Canadian Coleop- tera. Entomol. Soc. Ont. Annu. Rep. 25:47—-49. 1930. Studies on the insect fauna of Iowa prairies. Iowa State Coll. J. Sci. 4 (2) :49-179. Illus. Refs. 1975. Mating, oviposition patterns, fe- cundity and longevity of the western corn rootworm. J. Econ. Entomol. 68 (3) :311-315. Illus. Refs. , and Z. B. Mayo. 1974. “Trap corn” as an aid to corn rootworm control. Proc. N. Cent. Br. En- tomol. Soc. Amer. 29:194—-195. , and 1974. Trap-corn to control corn rootworms. J. Econ. Entomol. 67 (6) :748—750. G. Lovety. 1972. Application equipment and techniques used in the evaluation of granular insecticides for control of western corn root- worm larvae. J. Econ. Entomol. 65 (4) :1116-1119. Illus. Hopkins, A. D., and W. E. Rumsey. 1896. Practical entomology. W. Va. Agr. Exp. Sta. Bull. 44:245-324. Refs. Howe, W. L., and A. M. Ruopes. 1976. Phytophagous insect associations with Cucurbita in Illinois. Environ. Entomol. 5 (4) :747-751. Illus. Refs. ______, J. R. Sansorn, and A. M. Ruopes. 1976. Western corn -rootworm adult and spotted cucumber beetle associations with Cucurbita and Cucurbitacins. Environ. Entomol. 5 (6) :1043-1048. Illus. Refs. Huser, R. T., and J. V. Osmun. 1966. Insects and other arthropods of economic importance in Indiana during 1966. Proc. Indiana Acad. Sci. 76:291-307. Illus. 1944. List of Chrysomelidae (Coleop- tera) known to occur in Ohio. Ohio J. Sci. 44 (3): 129-142. Refs. 1891. Injurious insects of Nebraska. Insect Life 4 (3-4) :132-133. 1927. A monthly survey report form. J. Econ. Entomol. 20 (5) :717-725. Ilus. 1965. Insect control for field crops. Ill. Agr. Ext. Serv. Circ. 899. 7 p. Illus. . Jupp, W. W. 1970. Insects associated with flowering wild carrot, Daucus carota L., in southern Ontario. Proc. Entomol. Soc. Ont. 1969. 100:176-181. Refs. KeitH, D. L., and W. Gary. 1974. Nebraska pilot pest management project on insects and weeds in corn. Proc. N. Cent. Br. Entomol. Soc. Amer. 29:46—47. Illus. , and A. Martin. 1975. Insecticide use patterns by pest management cooperators and non- 76. 77. 78. 79. 80. 81. 83. 84. 85. 86. 87. 88. 89. 90. Ohl. 92) . Kocan, M. cooperators in south central Nebraska. Proc. N. Cent. Br. Entomol. Soc. Amer. 30:65—67. Illus. Kinc,.D. R., J. A. Harpine, and B. C. LANGLEY. Peanut insects in Texas. Tex. Agr. Exp. Sta. Misc. Publ. 550. 14 p. Illus. Refs. Kirk, V. M. 1973. Biology of a ground beetle, Har- palus erraticus. Proc. N. Cent. Br. Entomol. Soc, Amer. 28:208. . 1973. Biology of a ground beetle, Harpalus pensylvanicus. Ann. Entomol. Soc. Amer. 66 (3) :513- 518. Illus. Refs. 1961. . 1974. Biology of a ground beetle, Harpalus erraticus. Ann. Entomol. Soc. Amer. 67 (1) :24-28. Illus. Refs. 1975. Concentration of rainwater by corn plants makes site suitable for oviposition by corn root- worms. Proc. N. Cent. Br. Entomol. Soc. Amer. 30:83. . 1975. Suitable oviposition site for corn root- worms (Coleoptera, Chrysomelidae) resulting from concentration of rainwater by corn plant. Agr. Me- teorol. 15:113-116. Illus. Refs. 1974. Insect pests in soybeans. Pages 124— 133 in Proceedings of the workshop on soybeans for tropical and subtropical conditions. 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Northern corn rootworm, Diabrotica longicornis (Say) 2, 5, 6, 9, 13, 16, 17, 23, 24, 25, 27, 28, 29, 30, 32, 33, 35, 36, 37, 38, 39, 42, 43, 44, 48, 49, 50, 51, 54, 55, 58, 59, 60, 62, 63, 65, 66, 68, 69, 70, 71, 72, 73, 74, 79, 81, 82, 85, 86, 88, 89, 91, 92, 93, 94, 95, 96, 99, 100, 101, 102, 103, 104, 106, 107, 108, 109, 110, 112, 113, 114, 116, 117, 118, 119, 120, 121, 123, 126, 127, 128, 129, 130, 135, 136, 137, 143, 144, 146, 148, 149, 150, 152, 156, 157, 158, 159, 162, 163, 164, 165, 166, 169, 170, 172, 174, 175, 176, 177, 179, 180, 181, 184, 187, 188, 189, 190, 192, 193, Western corn LeConte 6, 11, 20, 21, 22, 23, 24, 26, 27, 29, 30, 32, 34, 40, 45, 55, 56, 57, 61, 62, 63, 64, 66, 67, 74, 78, 79, 81, 82, 84, 91, 92, 94, 95, 103, 104, 106, 108, 109, 111, 115, 125, 126, 130, 131, 133, 138, 139, 143, 144, 147, 149, 152, 154, 155, 156, 161, 162, 163, 165, 169, 171, 172, 178, 179, 182, 184, 185, 186, 189, 190, 192, 193. rootworm, Diabrotica virgifera Diabrotica spp. ch Ga Uy ty HOS bes Ve Gs IE UIE Gi, Gal, ca, cir Ge, Gah, 7a, 76, 77, 80, 83, 87, 90, 97, 98, 105, 122, 124, 133, 134, 140, 141, 142, 145, 151, 153, 160, 167, 168, 173, 183, 191. PERIODICAL ABBREVIATIONS Meteorol.—Agricultural Meteorology. Agrichem. Age—Agrichemical Age. Agron. Glas—Agronomski Glasnik. Ann. Entomol. Soc. Amer.—Annals of the Entomological Society of America. Ann. Soc. Entomol. Quebec—Annales de la Societe Entomolo- gique de Quebec. Annu. Rey. Entomol.—Annual Review of Entomology. Ariz. Agr. Exp. Sta., Ariz. Coop. Ext. Sery. Folder—Arizona Agri- Ark. Arq cultural Experiment Station and Arizona Cooperative Exten- sion Service Folder. Agr. Exp. Sta. Ext. Serv. Circ.—Arkansas Agricultural Ex- periment Station Extension Service Circular. . Inst. Biol. Sao Paulo—Arquivos do Instituto Biologico Sao Paulo. Biochim. Biophys. Acta—Biochimica et Biophysica Acta. Bol. Tec. Inst. Agron. Norte (Brazil) —Boletin Tecnico do Insti- tuto Agronomico do Norte (Brazil) . Bull. Entomol. Soc. Amer.—Bulletin of the Entomological Society of America. 8 Bull. Environ. Contam. Toxicol—Bulletin of Environmental Contamination and Toxicology. CIAT Ser. Semin—CIAT (Centro International de Agricultura Tropical) Serie Seminario. Calif. Dep. Agr. Bull.—California Department of Agriculture Bulletin. Can. Dep. Agr. Publ.—Canada Department of Agriculture Pub- lication. Can. Entomol.—Canadian Eniomologist. Can. J. Plant Scii—Canadian Journal of Plant Science. Crop Sci.—Crop Science. Crops Soils Mag.—Crops and Soils Magazine. Dairy Herd Manage.—Dairy Herd Management. El Salvador Min. Agr. Ganad. Bol. Tec.—El ‘ alvador Ministerio de Agricultura y Ganaderia Boletin Tecnico. Entomol. Exp. Appl.—Entomologia Experimentalis et Applicata. Entomol. Soc. Ont. Annu. Rep.—Entomological Society of On- tario Annual Report. Environ. Entomol.—Environmental Entomology. Folia Entomol. Mex.—Folia Entomologica Mexicana. Ill. Agr. Econ.—Illinois Agricultural Economics. Ill. Agr. Exp. Sta. Bull.—IIlinois Agricultural Experiment Station Bulletin. Ill. Agr. Ext. Serv. Circ.—IIlinois Agricultural Extension Service Circular. Ill. Coop. Ext. Sery. Ill. Coll. Agr. Il. Natur. Hist. Surv.—Illinois Cooperative Extension Service, Ilinois College of Agricul- ture, Illinois Natural History Survey. Ill. Natur. Hist. Surv. Biol. Notes—Illinois Natural History Sur- vey Biological Notes. Ill. Natur. Hist. Surv. Bull.—Illinois Natural History Survey Bulletin. 4 Ill. Natur. Hist. Surv. Circ.—Illinois Natural History Survey Circular. Indiana Agr. Exp. Sta. Res. Bull.—Indiana Agricultural Experi- ment Station Research Bulletin. Indiana Dep. Geol. Natur. Res. Bull—Indiana Department of Geology and Natural Resources Bulletin. Iowa Agr. Exp. Sta. Bull—Iowa Agricultural Experiment Station Bulletin. Iowa Coop. Ext. Serv.—Iowa Cooperative Extension Service. Iowa State Coll. J. Sci—Iowa State College Journal of Science. Iowa State J. Res.—Iowa State Journal of Research. Iowa State Univ. Coop. Ext. Serv.—Iowa State University Cooper- ative Exiension Service. J. Econ. Entomol.—Journal of Economic Entomology. J. Kans. Entomol. Soc.—Journal of the Kansas Entomological Society. J. N. Y. Entomol. Soc.—Journal of the New York Entomological Society. Kans. Acad. Sci—Kansas Academy of Science. Kans. Agr. Exp. Sta. Bull—Kansas Agricultural Experiment Sta- tion Bulletin. Kans. State Bd. Agr. Rep.—Kansas State Board of Agriculture Report. Ky. Agr. Exp. Sta. Bull.—Kentucky Agricultural Experiment Sta- tion Bulletin. Ky. Coop. Ext. Serv. Misc. Publ.—Kentucky Cooperative Exten- sion Service Miscellaneous Publication. La Molina Estac. Exp. Agr. Biol.La Molina Estacion Experi- mental Agricola Boletin. Mich. Agr. Exp. Sta. Res. Rep.—Michigan Agricultural Experi- ment Station Research Report. Mich. State Univ. Coop. Ext. Serv. Ext. Bull.—Michigan State University Cooperative Extension Service Extension Bulletin. Mo. Agr. Exp. Sta. Bull.—Missouri Agricultural Experiment Sta- tion Bulletin. Mo. Agr. Exp. Sta. Res. Bull.—Missouri Agricultural Experiment Station Research Bulletin. Mo. Coop. Ext. Serv. Handb.—Missouri Cooperative Extension Service Handbook. N. C. Agr. Exp. Sta. Annu. Rep.—North Carolina Agricultural Experiment Station Annual Report. US ISSN 0073-490X N. Y. (Cornell) Coll. Agr. Misc. Bull_—New York (Cornell) Col- lege of Agriculture Miscellaneous Bulletin. N. Dak. Coop. Ext. Serv.—North Dakota Cooperative Extension Service. Natur. Can.—Nature Canada (Le Naturaliste Canadien) . Nebr. Agr. Exp. Sta. Annu. Rep.—Nebraska Agricultural Exper- iment Station Annual Report. Nebr. Agr. Exp. Sta. SB—Nebraska Agricultural Experiment Sta- tion SB. Nebr. Agr. Ext. Serv. Ext. Circ.—Nebraska Agricultural Exten- sion Service Extension Circular. Nebr. State Bd. Agr. Annu. Rep.—Nebraska State Board of Agri- culture Annual Report. Ohio Agr. Exp. Sta. Bull.—Ohio Agricultural Experiment Station Bulle.in. Ohio Agr. Res. Devel. Center Res. Summ.—Ohio Agricultural Research and Development Center Research Summary. Ohio Biol. Sury. Bull.—Ohio Biological Survey Bulletin. Ohio Coop. Ext. Serv. Bull.—Ohio Cooperative Extension Ser- vice Bulletin. Ohio J. Sci.—Ohio Journal of Science. Ohio Rep. Res. Devel.—Ohio Report on Research and Develop- ment. Ohio State Univ. Coop. Ext. Serv._Ohio State University Co- operative Extension Service. Ohio State Univ. Coop. Ext. Serv. Bull—Ohio State University Cooperative Ex.ension Lervice Bulletin. Ont. Min. Agr. Food Publ.—Ontario Ministry of Agriculture and Food Publication. Pestic. Inst. News—The Pesticide Institute News. Plants Gard.—Plants and Gardens. Proc. Annu. Hybrid Corn Ind. Res. Conf.—Proceedings of the Annual Hybrid Corn Industry Research Conference (Amer- ican Seed Trade Association) . Proc. Entomol. Soc. Ont.—Proceedings of the Entomological So- ciety of Ontario. Proc. Indiana Acad. Sci.—Proceedings of the Indiana Academy of Science. Proc. N. Cent. Br. Entomol. Soc. Amer.—Proceedings of the North Central Branch of the Entomological Society of America. Proc. Tall Timbers Conf. Ecol. Animal Contr. Habitat Manage.— Proceedings of the Tall Timbers Conference on Ecological Animal Control by Habitat Management. Rev. Agr. (Mexico) —Revista de Agricultura (Mexico) . Rev. Peru. Entomol. Agr.—Revista Peruana de Entomologia Agricole. Riv. Agr. Subtrop. Trop.—Rivista de Agricolture, Subtropical et Tropical. S. C. Agr. Exp. Sta. Bull—South Carolina Agricultural Exper- iment Station Bulletin. S. Dak. Agr. Exp. Sta. Annu. Rep.—South Dakota Agricultural Experiment Station Annual Report. Tex. Agr. Exp. Sta. Misc. Publ.—Texas Agricultural Experiment Station Miscellaneous Publication. U. S. Dep. Agr. Agr. Handb.—United States Department of Agri- culture, Agriculture Handbook. U. S. Dep. Agr. Agr. Res. Serv. NC—United States Department of Agriculture, Agricultural Research Service NC. U. S. Dep. Agr. Bur. Entomol. Rep. Entomol.—United States De- partment of Agriculture, Bureau of Entomology, Report of the Entomologist. . S. Dep. Agr. Div. Entomol. Bull.—United States Department of Agriculture, Division of Entomology Bulletin. . S. Dep. Agr. Farmers’ Bull.—United States Department of Ag- riculture Farmers’ Bulletin. . §. Dep. Agr. Misc. Publ.—United States Department of Agri- culture Miscellaneous Publication. . S. Dep. Agr. Prod. Res. Rep.—United States Department of Agriculture Product Research Report. U. S. Dep. Agr. Yearb. Agr.—United States Department of Agri- culture, Yearbook of Agriculture. Va. J. Sci.—Virginia Journal of Science. W. Va. Agr. Exp. Sta. Bull.—West Virginia Agricultural Exper- iment Station Bulletin. 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