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Some Factors Affecting the Insectidal Action of Pyrethrum Extracts on the Beet Leafhopper


Author:
Harries, F.H., DeCoursey, J.D., and Hofmaster, R.N.
Source:
USDA
Year:
1945
Format:
p. 553-565.
Language:
English
Collection:
USDA publications
Permanent URL:
http://handle.nal.usda.gov/10113/IND43969972