Control of the Western Grapeleaf Skeletonizer (Lepidoptera: Zygaenidae), a New Grape Pest in the San Joaquin Valley, California

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Harrisina brillians Barnes and McDunnough is native to North America, but it first invaded California near San Diego in 1941. An attempt at eradication was not successful. In 1961, the new pest was found in the San Joaquin Valley, where more than two-thirds of California's billion-dollar grape industry is located. In spite of other attempts at eradication, it became firmly established by 1975 and has caused severe damage to commercial vineyards, backyard grapes, and native wild grapes. Test chemicals were applied at 1,870 liters/ha by hand sprayer. Kryocide, methomyl, naled, carbaryl, and diflubenzuron were applied at 8.97, 0.79, 0.56, 1.12, and 0.14 to 0.28 kg of AI/ha, respectively, and control was ≥99%. Dipel applied at 1.12 kg of Al/ha was less effective, and two applications may be needed to control a vineyard infestation.

Document Type: Research Article

Publication date: February 1, 1983

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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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