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Sensitivity of Tenebrio molitor1 and T. obscurus1 to Gamma Irradiation2

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Effects of gamma irradiation doses between 5 and 100 krad on all stages of Tenebrio molitor L. and T. obscurus F. appeared to be similar although T. molitor was more radio-sensitive. Development of adults from eggs and larvae was prevented by 2.5 and 5 had, respectively, but some adult T. obscurus emerged from pupae treated with doses as high As 30 krad, and some T. molitor at doses of 50 krad. Adult females of both species were more sensitive than males to the sterilizing effects of gamma irradiation, but sterility was complete at doses of 15 had and above. Control of these 2 species appears feasible with the levels of irradiation currently approved for treatment of stored-grain insects in wheat and wheat flour.

Document Type: Research Article

Publication date: October 1, 1973

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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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