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Establishment of Dibrachoides druso1 on the Egyptian Alfalfa Weevil2 in Southern California

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Dibmchoides druso (Walker) was intensively colonized on populations of the Egyptian alfalfa weevil, Hypera brunneipennis (Boheman), in southern California in 1961-62. Recoveries were made in the San pasqual Val lev. San Diego County, in 1961 and in 1967. A survey conducted in the spring of 1968 showed the parasite to be well established at 3 localities in San Diego County and to have spread at least 20 miles to the west of an original colonization site. Parasitization was low, not ex ceeding 5.6% in any sample.

Document Type: Research Article

Publication date: December 1, 1969

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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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