Authors: YOUNGER, R. L.; RADELEFF, R. D.; JACKSON, J. B.

Source: Journal of Economic Entomology, Volume 56, Number 6, December 1963 , pp. 757-759(3)

Publisher: Entomological Society of America

Abstract:

Carbophenothion suspension sprays were toxic to dairy calves at 0.05% and higher concentrations whereas Methyl Trithion^® (S-(p-chlorophenylthio)methyl O,O-dimethyl phosphorodithioate) emulsion sprays produced no signs of toxicosis in dairy calves at 0.25% and 0.5% concentrations but with moderate cholinesterase depression. Dairy calves were poisoned with a Methyl Trithion drench at 25 mg./kg. with marked cholinesterase depression.

Cattle were safely sprayed with 0.05% and 0.1% suspension sprays of carbophenothion and 0.5% emulsion sprays of Methyl Trithion with slight to no cholinesterase depression, but 1.0% suspension sprays of carbophenothion were toxic to cattle. Goats were safely dipped in a 0.1% emulsion of Methyl Trithion with moderate cholinesterase depression.

Sheep were poisoned with carbophenothion as a drench at 25 mg./kg. but tolerated carbophenothion given as 1 drench at 10 mg./kg., with marked depression of cholinesterase activity. Sheep tolerated Methyl Trithion given as a drench at 25 mg./kg. with moderate depression of cholinesterase activity.

Document Type: Research article

Publication date: 1963-12-01

More about this publication?

• 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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