Melon Flies: Dosage-Response and Sexual Competitiveness After Treatment with Gamma Irradiation in a Nitrogen Atmosphere
Authors: Ashraf, Mohammad; Chatha, Nasrullah; Ohinata, Kiichi; Harris, Ernest J.
Source: Journal of Economic Entomology, Volume 68, Number 6, 15 December 1975 , pp. 838-840(3)
Publisher: Entomological Society of America
Abstract:Doses of 18–19 had of gamma-irradiation were needed to produce a level of sterility of 99.5% or higher in ♂ Dacus cucurbitae Coquillett treated in nitrogen as pupae 2 days before eclosion or as 2- or 5-day-old adults. The same level of sterility was obtained with 6–8 had when pupae or 2-day-old adults were irradiated in air. Males irradiated in nitrogen either as pupae or as 2-day-old adults were fully competitive with normal ♂, but ♂ treated in nitrogen as 5-day-old adults and ♂ irradiated in air as 2-day-old adults or as pupae were only 40–60% as competitive as normal males. Recovery of fertility with time occurred in ♂ treated in nitrogen as 2-day-old adults, although not in ♂ treated in nitrogen in the late pupal stage. However, mortality in ♂ treated in nitrogen in the pupal stage at 6 wk was about twice that of the former groups.
Document Type: Research Article
Publication date: 1975-12-15
- 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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