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Larval progeny of Carpocapsa pomonella (L.), was reduced 80% when adult moths, exposed to 48 krad in carbon dioxide, were caged in the laboratory with untreated moths at a ratio of 15 irradiated males and 15 irradiated females to 1 untreated male and 1 untreated female. In an abandoned 2-hectare apple orchard, release of 271.000 irradiated (50 krad) male and female moths in 1964, and 478,000 in 1965, redduced the numbers of apples injured by codling moth at harvest from approximately 60% in 1963 to 1.6% in 1964 and to 0.3% in 1965.
Document Type: Research Article
Publication date: October 1, 1967
More about this publication?
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.