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Sterilization and Competitiveness of the Mediterranean Fruit Fly1 After Irradiation of Pupae with Fast Neutrons2

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Abstract:

Mature pupae of Ceratitis caPitata (Wiedemann) were irradiated with fast neutrons in a swimming-pool reactor, and flies which emerged 24-48 hours after irradiation were used in all experiments. The doses absorbed by the pupae were checked biologically with barley seeds and by the 32S (n,p) 32P reaction. Doses up to 1.9 krad did not adversely affect adult E1osion. , and survival at 21 days of males and females was not significantly reduced by 1.9 and 1.1 krad, respectively. Irradiated females became in fecund at a dose between 0.7 and 1.1 krad, and 98% sterility in males was achieved with 1.9 krad. Comparison with data for ⋎-radiation gives an RBE for the fast neutrons of 3-4 for female in fecundity and 4-5 for male sterility. Data from competitive mating experiments comparing- irradiation with fast neutrons or ')⋎-radiation suggested that fast neutrons affected male competitiveness less than did ⋎-radiation.

Document Type: Research Article

Publication date: December 1, 1971

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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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