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Dispersal and Migration of Tepa-Sterilized Mexican Fruit Flies1,2

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About 7,700,000 marked (sprayed with colored lacquer) and sterilized (with tepa) adult Mexican fruit flies, Anastrepha ludens (Loew), were released between 1963 and 1965 in several areas of Texas and Mexico for study of dispersion and migration, One fly was recovered 12 months after release. Maximum migrations were 11 miles in Morelos, 23 miles in northwestern Baja California, and 12 miles from Tijuana, Baja California. into California. (Air currents are believed to have aided migrations. However, dispersal of 3-5 miles was normal.) Estimates of native fly population of 1 per square mile in Texas and 29 per square mile in Tijuana were derived by comparing the numbers of native flies captured with the number of sterile flies recaptured.

Document Type: Research Article

Publication date: August 1, 1967

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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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