Dimethoate for Control of Western Cherry Fruit Fly on Sweet Cherry in Oregon

Authors: Zwick, R. W.; Fields, G. J.; Kiigemagi, Ulo

Source: Journal of Economic Entomology, Volume 68, Number 3, June 1975 , pp. 383-385(3)

Publisher: Entomological Society of America

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Dimethoate (2.67 lb AI/gal EC) was evaluated on heavily-infested backyard sweet cherry trees and in lightly infested commercial cherry orchards for control of Rhagoletis indifferens Curran. A single dilute application rates of 0.33 and 0.51 lb AI/100 gal 31–56 days pre-harvest gave excellent control during 1971–72 and 1974 field tests. Bioassay tests against adult western cherry fruit flies with several registered and nonregistered contact insecticides indicated dimethoate to be the most effective and persistent compound evaluated. Residues of dimethoate on cherries were collected 2 years and were within currently registered tolerances for this material on pome fruits. Phytotoxic effects including marginal foliage necrosis and minor defoliation in 1974 field tests were noted but are not considered serious.

Document Type: Research Article

Publication date: June 1, 1975

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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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