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How to detect outbreaks of insects and save the grain crops


Author:
Walton, William Randolph
Source:
USDA
Year:
1920
Subject:
Grain, Diseases and pests, grain crops, crop entomology, and plant pests
Language:
English
Publisher:
United States Department of Agriculture
Series:
Farmers' bulletin (United States. Department of Agriculture) ; no. 835
Collection:
Organic Roots Collection
Permanent URL:
http://handle.nal.usda.gov/10113/46040