Abstract

Studies were conducted to provide data on the extent of residues of Dursban®insecticide (O, O-diethyl 0-(3,5,6- trichloro-2-pyridyl) phosphorothioate) in turkey tissues following confinement on soil treated with either an emulsify able, granular, or wet table powder formulation of the insecticide at 4.5 pounds active chemical per acre. Electron-capture gas chromatography with silicic acid cleanup was used for analysis of samples. Low-level residues of the insecticide were detectable in the skin and fat tissue samples at each sacrificing interval, ranging from 0.01-0.07 ppm at 7 days, and dropping to <0.01-0.02 ppm after 14 days. Residues in mixed muscle and liver tissues were less than 0.01 ppm, the sensitivity level, at each sampling period from turkeys confined on each treated soil.

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