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Influence of the Mode of Administration of Benzylphenols and Benzyl-1, 3 Benzodioxoles- on Screwworm Fertility

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Inhibition of egg hatchability of Cochliomyia hominivorax (Coquerel) induced by topical treatments with the chemosterilants 2,4-bis(1, 1-dimethylethyl)-6-(phenylmethyl)phenol (A 13-29183); 2,4-bis(1,1-dimethylethyl)-6-(4-methoxyphenylmethyl) phenol (A13-70691); 2,4-bis(1,1-dimethylethyl)-6-(1-phenylethyl)phenol (A13-70736); 5-ethoxy-6-(4-methoxyphenylmethyl)-1,3-benzodioxole (A13-53024); and 5-(2-propenyl)-6-(4-methoxyphenylmethyl)-1,3-benzodioxole (A13-70714) was dose related. The benzylphenol A13-70691 was the most efficient compound tested in inhibiting egg hatchability and was >55 times more potent than the benzodioxoles A13-53024 and A13-707l4. A13-29l83 and A13-7069l also were effective via tarsal treatments, and their potency was greater in the more mature insects.

Treatments via the larval rearing medium, although permitting pupation, prevented ec1osion from the pupa only at the highest levels assessed (200 ppm) of A13-70714 and A13-53024. Treatments with all other compounds permitted emergence of adults, but egg hatchability was reduced in the following generation proportional to dosage levels.

Document Type: Research Article

Publication date: April 1, 1981

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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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