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Significance of the Urogomphal Abnormality as a Criterion in the Test Method for Susceptibility to JH Mimics in Tribolium confusum

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Abstract:

A test method was developed to measure susceptibility of the confused flour beetle to JH mimics in terms of EC50, based on treating larvae and examining surviving adults. Persistence of the larval urogomphi is the principal adult abnormality used as a criterion of effect. This was found to be a valid indicator of the reproductive ability of the affected adults. This inhibition seems to be due to a combination of mechanical interference with the mating process and gonadal deficiencies which restrict fertilization.

Document Type: Research Article

Publication date: June 1, 1977

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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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