Sterility Induced in Tobacco Bud worms1 by Combination of Reserpine and Gamma Irradiation Affected by Age and Sex of Pupae2

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Female Heliothis virescens (F.) were sterilized completely when pupae from larvae reared on diets containing reserpine (0.1% wt/v) were exposed to 7.5, 10, 15, or 20 krad of gamma irradiation; mating frequency and longevity of resulting adults were unaffected. Although egg hatch was inhibited completely when females reared on reserpine were irradiated as 2-, 4-, 6-, and 8-day-old pupae and crossed with untreated males. some hatch occurred when they were irradiated as 10- to 12-day-old pupae. Males were not sterilized completely by the combinations of treatment (egg hatch was never inhibited completely), but when young male pupae were irradiated, the percentage egg hatch was more reduced than when older pupae were treated.

Document Type: Research Article

Publication date: October 1, 1972

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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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