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Effects of a High Vacuum on Insect Mortality1

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The Madeira cockroach, Leucophaea maderae (F.); the Mexican bean beetle, Epilachna varivestis Mulsant; the house fly, Musca domestica L.; the confused flour beetle, Tribolium confusum Jacquelin duVal; and the Japanese beetle, Popillia Japonica Newman, were exposed to pressures of 0.05 to 0.03 min of mercury for periods of 2 to 64 min. A high mortality occurred for all species at the 64-min exposure level. Weight loss ranged from 14% to 47%. A drop in internal temperature from 26°C to about 10°C was observed in the Madeira cockroach and the Japanese beetle during the 64-min exposure period.

Document Type: Research Article

Publication date: December 1, 1964

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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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