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Samples of soft red winter wheat containing known ages of eggs, larvae, or pupae of Sitotroga cerealella (Olivier) were irradiated with gamma and/or microwave radiation. Representatives of each age group received the following treatments: (I) no radiation (controls), (2) microwave radiation, (3) gamma radiation, (4) microwave radiation followed by gamma radiation, or (5) gamma radiation followed by microwave radiation. Effectiveness of the treatments was based on percent adult emergence. An average reduction in emergence of 54 and 74% was observed following gamma and microwave radiation, respectively. The calculated expected reduction was 88% for combination treatments of either sequence. The sequence of radiation treatments did not influence the average effectiveness of the combinations. 'When the gamma treatment was followed by microwave radiation, the average reduction in emergence was 96%; when microwave radiation was followed by gamma radiation, the average reduction was 97%.
Document Type: Research Article
Publication date: April 1, 1972
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.