Residues of chlorpyrifos and its pyridinol metabolite in apples, on twig bark, and in undertree debris
By: [J.F. Howell and D.A. George].
Contributors: George, D. A.; United States. Agricultural Research Service.
Series: ARS -- 9.; ARS (Series) (United States. Agricultural Research Service) -- 9.
Publisher: U.S. Dept. of Agriculture, Agricultural Research Service; National Technical Information Service [distributor]
Published: 1984
Place of publication: Beltsville, Md; Springfield, VA
Language: eng
Number of pages: 10
Subjects: Insecticides -- Toxicology.; Apples.; Bark.; Forest litter.
Notes: "August 1984."

Bibliography: p. 9-10.