Field Observations on the Effects of Releasing Sterile Screw-worms in Florida
Authors: BAUMHOVER, A. H.; HUSMAN, C. N.; SKIPPER, C. C.; NEW, W. D.
Source: Journal of Economic Entomology, Volume 52, Number 6, December 1959 , pp. 1202-1206(5)
Publisher: Entomological Society of America
Abstract:Approximately 500 sterile male screw-worm flies (Callitroga hominivorax (Cqrl.)) were released weekly per square mile over a 2,000-square-mile area in Florida. The insects had been irradiated as pupae, within 2 days of adult emergence, with 6,200 to 8,300 r gamma rays from cobalt-60. They were packaged at the rate of 880 (later 550) pupae per release carton. Flies were distributed daily in 6-mile swaths by small aircraft. Shifting of flight lanes resulted in the area being covered in 1-mile swaths weekly. Egg-mass collections in the treated area declined from a weekly average of 41 per station during the first 2 months to 11 in the 12th week. Check stations indicated a continuing high population north of the treated area but a decline on the west and south. However, at the end of 3 months 70% of the egg masses were sterile.
Document Type: Research Article
Publication date: 1959-12-01
- 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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