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The metabolism and associated residues following intramuscular injection and oral feeding of seven sheep were determined with p32-labcled dimethoate. Degradation of dimethoate was rapid and almost quantitative for all sheep, and appeared not to be significantly affected by the route of administration. Only trace residues were found in tissues of sheep sacrificed 2 and 4 weeks posttreatment. Cleavage occurred at several sites on the dimethoate molecule, but to the greatest extent, initially, at the carbonyl-nitrogen bond. Evidence is presented for the occurrence of a previously unreported desalkyl derivative of dimethoate.
Document Type: Research Article
Publication date: August 1, 1961
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Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.