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Chemically Induced Resistance in the Cotton Plant to Attack by the Boll Weevil1

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Investigations were conducted to determine whether resistance could be chemically induced in the cotton plant to attack by the boll weevil (Anthonomus grands Boheman). Plant extracts representing 117 families and 358 species and 400 fermentation filtrates representing a wide spectrum of bacteria, molds, yeasts, and fleshy fungi were screened against the boll weevil cotton plant complex for systemically induced repellency, attractancy, and effects on fecundity and development or larvae in squares. The results obtained were negative.

Nine compounds of known chemical identity were sereened and one or these, Bayer 39007 (O-isopropoxyphenyl methyl- carbamate), exhibited definite systemically induced repellency to the boll weevil in seedling cotton plants and in plants ill the 4- leaf stage in the laboratory.

Document Type: Research Article

Publication date: April 1, 1963

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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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