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The Recapture of Marked Apple Maggot Adults1 in Several Orchards from One Release Point2

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The daily laboratory emergence of adults of Rhagoletis pomonella (Walsh) was photographed for counting purposes, dusted en masse with fluorescent powder for detection purposes. and then released west of an area containing apple orchards. One orchard was situated west of the release point. Twenty releases totaling 38,614 flies were made, the 1st on June 20. Bird Tanglefoot®-treated plywood trap sites were established in 5 commercial-sized orchards and in 3 remnant orchards. Bird Tanglefoot-treated cotton barriers were situated in front of the orchards facing the release point and in 2 gaps in bush hedges between properties. The barriers extended from 8 to 14 ft in height and were from 50 to 125 ft long. Marked flies were recaptured at all 7 trapping sites situated east of the release point. The closest was 263 and the farthest was 1719 yards. Marked flies, but only a few, were recaptured also in the station 421 yards west of the release point. Only a few flies were recaptured on the barriers, although 1 fly was caught on a barrier 1453 yards from the release point. With the exception of the orchard nearest the release point, it seemed more flies were recaptured in the more susceptible than in the less susceptible varieties of apples, although more of the traps were hung in the latter varieties.

Document Type: Research Article

Publication date: October 1, 1968

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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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