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New Chemical Attractants for Yellow Jackets (Vespula Spp.)1

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Of 102 synthetic organic compounds tested in Oregon in 1966 as attractants for yellow jackets (Vespula spp.) , 82 caught 1 or more specimens, and 7 were more attractive than the standard, 2,4-hexadienyl butyrate.

The compounds were tested by placing about 0.25 ml in the bottom of straight-sided 0.473-liter glass jars equipped with inverted screen cones having a 1.27-cm-diameter hole at the apex of the cone. Insects responding to the lures entered the holes in the cones and were unable to escape from the traps.

The most effective compounds were esters of α,-unsaturated acids.

All of the thousands of yellow jackets trapped in the Willamette Valley of Oregon were Vespula pensylvanica (Saussure). Three other species, V. atropilosa (Sladen), V. acadica (Sladen), and V. vulgaris (L.), were caught elsewhere and at higher elevations in various parts of the State. The attractants appeared to be highly specific for yellow jackets, since few other insects and no beneficial species such as honey bees, Apis mellifera L., were caught.

Document Type: Research Article

Publication date: April 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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