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Effects of Insecticides on the Scorpion Centruroides vittatus1

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The scorpion Centruroides vittatus (Say) was exposed to various insecticides in the laboratory. Chlordane, at 76 milligrams per square foot, gave 100% kill to 2 to 24 hours. Doubling these rates three times did not greatly reduce the exposure time required to give 100% kill. Malathion was ineffective at 11, 21, and 43 milligrams per square foot. At 86 milligrams per square foot 100% kill was obtained in 72 to 96 hours, and at 172 milligrams per square foot the exposure time was reduced to 24 to 48 hours. At double this rate of application the exposure time required to give 100% kill was not reduced. In tests in which scorpions were exposed to chlordane, lindane, or malathion at 100 milligrams per square foot, lindane gave 100% kills 20 times quicker than chlordane and 180 times quicker than malathion.

Document Type: Research Article

Publication date: October 1, 1962

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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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