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The corn earworm : its ravages on field corn and suggestions for control
- Phillips, W. J. (William Jeter) and King, Kenneth M. (Kenneth Marion)
- Farmers' bulletin (United States. Dept. of Agriculture) ; no. 1310 1923
- life cycle (organisms), Corn -- Diseases and pests, Heliothis zea -- Control, insect pests, seasonal development, tillage, control methods, cultural control, planting date, spraying, biological control, natural enemies, and Helicoverpa zea
- 18 p. : ill. ; 23 cm.
- U.S. Dept. of Agriculture
- Organic Roots Collection