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The bollworm or corn earworm


Author:
Bishopp, F. C. (Fred Corry)
Source:
Farmers' bulletin (United States. Dept. of Agriculture) ; no. 872 1917
Year:
1917
Subject:
life cycle (organisms), Heliothis armigera -- Control, insect pests, seasonal development, tillage, control methods, cultural control, spraying, trap crops, and Helicoverpa zea
Format:
16 p. : ill., 1 map ; 23 cm.
Language:
English
Publisher:
U.S. Dept. of Agriculture
Collection:
Organic Roots Collection