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Predator-Prey Response to Western Pine Beetle1 Attractants2,3

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The use of mixtures of insect pheromones and host constituents to aggregate populations of the western pine beetle, Dendroctonus brevicomis LeConte, can be expected to affect the activities of its predators, Temnochila virescensvar. chlorodia (Mannerheim) and Enoclerus lecontei (Wolcott). D. brevicomis responded differentially to the 2 pheromones, with frontal in and exo-brevicomin attracting comparable numbers of males while the female response was nearly 7 times greater to frontalin. Exo-brevicomin attracted large numbers of T. v. chlorodia; frontalin was nearly inactive. Both pheromones were ineffective in attracting E. lecontei. Conifer terpencs, such as alpha- and beta-pinene, myrcene, or camphene, elicited a strong response from this predator, but at tracted only a few T. v. chlorodia.

Document Type: Research Article

Publication date: April 1, 1971

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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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