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Constituents of the Cotton Bud. XI. Studies of a Feeding-Stimulant Complex from Flower Petals for the Boll Weevil1 , 2, 3

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Analogous extracts of the /lowers and buds of cotton, Gossypium hirsutum L., were compared as feeding stimulants for the boll weevil, Anthonomus grandis Boheman. The /lower extracts and their fractions were examined by paper, column, thin-layer, and gel-permeation chromatography, and active fractions were obtained. A methanol-extractable active substance was concentrated by precipitation with lead acetate, and another highly active fraction was recovered by re-extraction with methanol. Examination of the acidic, ether-extractable components in methanol extracts of flowers and buds indicated that these fractions from buds were more stimulating than similar extracts of /lowers.

Document Type: Research Article

Publication date: June 1, 1968

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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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