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Low-volume and Ultralow-volume Sprays of Malathion and Methyl Parathion for Control of Three Lepidopterous Cotton Pests

Dan A. Wolfenbarger

出版	Agricultural Research Service, U.S. Department of Agriculture, 1971
URL	http://books.google.com.hk/books?id=-CZ_AjF39cwC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN