When pupae of Plodia interpunctella (Hübner) were irradiated with various doses of --irradiation at different ages, the degree of sterility and the reproductive ability of the emerging adults varied with dose and with age at the time of irradiation. When 4- to 5-day-old pupae were treated with 35 or 50 krad, resultant adult females were sterile, and the reproductive ability of the males was reduced greatly, Also, progeny from the partially sterile males was sterile or nearly so, Treatment of pupae minimizes the problem of collecting and irradiating large numbers of adults, eliminates the need to handle, sex, and segregate the adults, and facilitates the distribution and release of treated insects (as pupae within the cardboard rolls).
Document Type: Research Article
Publication date: April 1, 1976
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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.