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Laboratory Studies of Sex Attraction in the Boll Weevil1,2

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Laboratory studies with the sex attractant of the boll weevil, Anthonomus grandis Boheman, confirmed previous findings that the female aggressively seeks the pheromone-emitting male. In both sexes, peak activity occurred when the weevils were 4-6 days old. When I sex was 4-6 days old and the other was less than 2 days old, the males were mostly unattractive and the females mostly unresponsive. Females responded to a single male, but response was significantly greater to 5, 10, or 25 males. Virgin males were twice as attractive and virgin females were 3 times as responsive as mated males or females. Males sterilized with apholate were about half as attractive to virgin females as untreated males when both were fed on laboratory diet but were equally attractive when both were fed on fresh cotton squares (flower buds). Comparisons between laboratory (medium-reared) and field (square-reared) male weevils, each fed cotton squares or laboratory diet, indicated a greater importance of food rather than strain in determining female response.

Document Type: Research Article

Publication date: October 1, 1967

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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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