Persistence of O,O-Dimethyl O-4-nitro-m-tolyl phosphorothioate, Its Oxygen Analogue, and Its Cresol in Corn and Grass Forage1

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Abstract:

Coastal bermudagrass and corn treated with an emulsifiable concentrate of O,O-dimethyl O-4-nitro- m -tolyl phosphorothioate at I, 2, and 3 Ib/acre and sampled 0, 1, 7. 14, 21, and 28 days posttreatment were analyzed for residues of the parent compound, its oxygen analogue, and its cresol. The residues of the parent compound diminished rapidly, those of the analogue were low (none were detected in the 21- and 28-day samples) , and those of the cresol were highest in the 1- and 7-day samples. All residues on both crops diminished to less than 1 ppm in 28 days. In contrast, residues of the parent compound and its analogue in corn ensiled in glass jars were relatively stable and diminished at a much lower rate, and the residues of the cresol increased significantly.

Document Type: Research Article

Publication date: December 1, 1969

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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.
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