Susceptibility of Mature and Newly Emerged Face Flies to Chemosterilization with Apholate1

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Newly emerged and sexually mature face flies, Musca autumnalis De Geer, were fed 0.5% of apholate in their diet for 1 day. Complete sexual sterility resulted from feeding this dosage to sexually mature female flies; only 78% net sterility resulted when mature males received the same amount of apholate. This concentration of sterilant produced 86 and 82% net sterility, respectively, in newly emerged face flies, both male and female.

In further tests 9.1 µg of actual apholate imbibed as a food additive was effective in producing complete sexual sterility in mature females and 10.4 Iµg imbibed were only 52.0% effective in controlling reproduction in newly emerged females.

Topical applications of apholate to newly emerged and sexually mature females indicated little difference in the susceptibility of the 2 groups to the sterilant.

Quantitative measurements of food consumption indicated that mature females consumed approximately twice as much food as newly emerged females.

Document Type: Research Article

Publication date: April 1, 1966

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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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