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Corn Earworm (Lepidoptera: Noctuidae): Effects of Substerilizing Doses of Radiation and Inherited Sterility on Reproduction

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Corn earworm, Heliothis zea (Boddie), males and females were irradiated with substerilizing doses of radiation. These moths were inbred or outcrossed and observed for their ability to reproduce. Inherited deleterious effects resulting from irradiation of P1 males were recorded for several generations. Reduced fecundity and egg hatch, together with an increased incidence of larval and adult mortality, were observed. A 10-krad dose of radiation induced deleterious effects that were inherited through the F2 generation. These radiation-induced deleterious effects were similar to those reported in other species of Lepidoptera. Results and analysis of this study indicated that use of substerilizing doses of radiation and inherited sterility has a much greater potential as a selective management strategy for H. zea than does the conventional 100% sterilizing dosage.

Document Type: Research Article

Publication date: April 1, 1987

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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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