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Residues of Dursban® (O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate) and its oxygen analog (diethyl 3,5,6-trichloro-2-pyridyl phosphate) present in the body tissues of cattle and the rate of elimination were determined after single spray treatments with 0.25 or 0.05% emulsions, a single dip with a 0.05% emulsion, and multiple dips with a 0.05% emulsion. The residues of Dursban were preponderant in the fatty tissues, and the low residues found in other tissues could be attributed to the small amount of fat present. Average residues in the fat of treated cattle 1 week after a single dip were about twice those resulting from a single spray treatment; average residue in the fat 1 week after the multiple dips was about 6 times that in the fat of cattle dipped once. The oxygen analog was found only in fat samples containing the higher residues of Dursban; they amounted to about 1% of the residue of Dursban.
Document Type: Research Article
Publication date: August 1, 1968
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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.