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Biological Factors Influencing Responses of the Female Boll Weevil1 to the Male Sex Pheromone in Field and Large-Cage Tests2,3

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Results of studies of female Anthonomus grandis Boheman made to determine the influence of biological factors Oil its response to male sex pheromone indicated that: (1) laboratory-reared males were as attractive and females were as responsive as native weevils if they had access to cotton squares (flower buds) as food; (2) increased attraction of isolated males over grouped males was substantiated; (3) males in close proximity to females were no more attractive to females than isolated males; (4) the lack of response of recently mated females emphasized the need to capture females in traps before they mate with free, competing males; (5) sterilization of males with apholate or irradiation did not significantly decrease their attractiveness compared with untreated males: (6) females responded to males as many as 3 times and from distances of as much at 82 m; (7) the high percentage of females captured in traps baited with males in the absence of competing males, and the low percentage captured with males in traps in an infested plot containing large numbers of competing males suggest that the sex pheromone might have a major role in suppressing weevil populations in areas where populations are extremely low. for example, in the spring after an effective fall diapause-control program has substantially reduced the number of over wintering boll weevils.

Document Type: Research Article

Publication date: February 1, 1969

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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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