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Effects of Moth Population Density and Pheromone Concentration on Mating Disruption of the Corn Earworm in Large Screened Cages

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Abstract:

The full-complement pheromone of Heliothis zea (Boddie) females, pheromone components, and component combination were evaluated as mating disruptants at selected application rates and moth population densities. Pheromone components were evaporated from point sources at the rate of 100 point sources per screen field cage (9 by 30 m) (3,700/ha)planted with cotton, Gossypium hirsutum L. Treatment efficacy was determined by observing and comparing the numbers of mating pairs (laboratory-reared moths) within the cages. The full-complement pheromone was most effective at the lowest moth population density. The highest application rate tested (370g/ha) was more effective than lower rates.

Document Type: Research Article

Publication date: April 1, 1982

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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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