Influence of Light on Diapause in the Boll Weevil1 I. Dependence of Diapause Response on the Spectral Composition of the Light Used to Extend the Photoperiod2, 3

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Regions of the near-ultraviolet and visible spectrum effective for inducing diapause suppression in the boll weevil, Anthonomus grandis Boheman, were investigated. One group of weevils was exposed to 11 hours of fluorescent light-time and 13 hours of dark-time that initiated diapause (L11:D13); the 2nd group was exposed to 13 hours of fluorescent light-time and 11 hours of dark-time that inhibited diapause (L13:D11). A 3rd group was exposed to 11 hours of fluorescent light-time followed by 2 hours of illumination with narrow wavebands of light of different spectral compositions and 11 hours of dark-time (L11+2:D11). The spectral region most effective for suppressing diapause was found to be between 400-665 nm. The 359-390 nm and 670-1000 nm spectral regions were less effective.

Document Type: Research Article

Publication date: December 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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