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Start Over You searched for: Publish Year Decade 1940 - 1949 Remove constraint Publish Year Decade: 1940 - 1949 Sudoc Stem A 77.302 Remove constraint Sudoc Stem: A 77.302

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21. DDT (insecticide). DDT for control of Japanese beetle.

23. DDT (insecticide). Recommendations or suggestions on use of DDT for apple spraying in 1946; by State agencies, Entomological Branch, Canadian Department of Agriculture, and Bureau of Entomology and Plant Quarantine, Agricultural Research Administration, United States Department of Agriculture.

25. Cabbage aphid control in California; by Roy E. Campbell.

28. Pests. Use of aircraft in control of crop pests.