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After the laboratory synthesis of gyplure (Jacobson 1960, Jacobson and Jones 1962), a sex attraclant for the male gypsy moth, Porthetria dispar (L.), and its establishment as a valuable survey tool for delineating areas of infestation of this destructive insect (Jacobson 1962a, 1962b), the possibility of using gyplure to control the gypsy moth was investigated. In 1961, high concentrations of both liquid and granular formulations of commercially piepared gyplure were applied by aircraft over an infested 400-acre island in Lake Winnepesaukee, New Hampshire, in an effort to prevent male moths from locating and successfully mating with females (Burgess 1964). Field observations revealed that this particular lot of gyplure had no effect on male mating behavior. Subsequent investigations showed that its ineffectiveness was due to a masking effect of the inactive trans form of gyplure, and possibly related byproducts, on the activity of the cis form (Jacobson 1963). Accordingly, we developed chromatographic methods (Jones and Jacobson 1964) for determining the content of cis-gyplure in samples of gyplure prepared in the laboratory and the pilot plant, as well as for separating the cis isomer from its contaminants on a small scale.
Document Type: Research Article
Publication date: April 1, 1965
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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.