Field studies were conducted in sparsely infested 4-ha plots in West Virginia between 1988 and 1990 to evaluate the effectiveness of high rates of racemic disparlure in reducing male trap catch and female mating, and suppressing populations of gypsy moth, Lymantria dispar (L.). Five-m grids of manually applied Luretape containing 700 g (AI)/ha (release rate of 222 g/ha/yr; 400 release points per hal significantly reduced the number of male moths captured in (+ )-disparlure-baited traps and disrupted mating for two consecutive seasons. In both years, reduction in male trap catch was considerably greater than reduction in female mating success. Data collected in situ from female insects in 1989 showed mating was reduced 12% in Luretape plots. Also in 1989, mating success among caged females was significantly greater in the upper canopy of Luretape-treated plots than at ground level. Intensive egg-mass surveys (50 0.01-haplots per central 1-ha site) showed that gypsy moth populations increased at similar levels in Luretape and control woodlots over a 3-yr period.
Document Type: Research Article
Publication date: June 1, 1993
More about this publication?
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.