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Susceptibility of Various Stages of Drosophila melanogaster1 to Gamma Radiation2

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All stages of Drosophila melanogaster Meigen were exposed to gamma radiation from a cobalt-60 source. The sensitivity, in descending order, was: eggs, 1-day-old larvae, 1-day-old pupae, 3-day-old larvae, 3-day-old pupae, and adults.

Exposure of eggs to 0.9 kr or more caused a high mor- tality rate in the egg and larval stages after exposure to 0.4 or 0.6 kr; death occurred in the pupal stage. Irradiation of larvae resulted in a high rate of pupal mortality.

Adult females exposed to as much as 35 kr lived as long as untreated females. Adult males were shorter lived than untreated males after exposure to 21 kr or more.

Document Type: Research Article

Publication date: August 1, 1967

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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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