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Radioautographic Study of the Diffusion of Topically Applied DDT-C14into the House Fly and Its Distribution in Internal Organs1

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Freeze-drying and radioautographic techniques have been used to study the diffusion of topically applied DDT-C13, into Musca domestica L. and its distribution in the internal organs. Soon after topical application, the insecticide spread over the entire insect body, possibly through the wax mono layer. It did not diffuse through the U1licle, but penetrated into the body through memo areas. The cuticle absorbed the insecticide slowly. apparently from the wax mono layer. Inside the body the maximum concentration of radio activity took place in the alimentary canal, which acquired radio- activity within 15 minutes after topical application. In the midget, radioactivity was concentrated between the gut wall and the peri trophic membrane only. External washings of the fly contained 95% DDT and 5? DDE (1,1-dichloro-2,2.bis(p-chloroprene) ethylene.) Fly extracts contained only DDE.

Document Type: Research Article

Publication date: October 1, 1969

More about this publication?
  • 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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