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Boll Weevil Immigration into Winter Habitat and Subsequent Spring and Summer Emergence

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A study conducted from 1974 to 1977 revealed that emergence patterns of overwintered Anthonomus grandis Boheman were related to the time that boll weevils entered winter habitat. The response of marked weevils to pheromone traps during the spring and summer indicates that weevils which enter overwintering sites during the later half of the fall period tend to emerge later the following growing season than those which enter hibernation early.

Leaf litter examinations during the period Aug. 1975– Mar. 1977 indicate that the major build up of over weevils in hibernation sites occurs through Oct. and Nov.

The assoaation between the time of boll weevil entry into overwintering habitat and the time of emergence the following growing season is an important factor to consider in conducting late season boll weevil suppression programs. Data developed during this study indicate that field populations present during Oct. and Nov. should be subjected to maximum control pressure since they tend to emerge the following year near or after cotton begins fruiting and will have maximum impact on the developing crop.

Document Type: Research Article

Publication date: April 1, 1978

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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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