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Corn Earworm (Lepidoptera: Noctuidae): Influence of Irradiation and Mating History on the Mating Propensity of Females

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Laboratory-strain Heliothis zea (Boddie) females that were mated with untreated males, irradiated (10 krad) males, or male progeny from irradiated (10 krad) males and then held for 24 or 48 h were compared for their ability to lure males into traps or to attract and mate with a male. The mating propensity of females that had been mated with either untreated or irradiated males and held for 24 h was less than the mating propensity of virgin females. Females of the same group that were held for 48 h after mating were as attractive to males as were virgin females. The mating propensity of females mated with male progeny of irradiated males was not significantly different from the mating propensity of virgin females. The percentage eupyrene sperm found in the spermatheca of females that had mated with male progeny of irradiated males were significantly lower than the percentage eupyrene sperm found in the spermatheca of females that had mated with untreated or irradiated males.

Document Type: Research Article

Publication date: December 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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