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Evaluation of Damage to Lint and Seed of Cotton Caused by the Pink Bollworm1

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Cotton crop value was reduced by 34% when seasonal infestation counts averaged at least 60% of the bolls infested by pink bollworm (Pectilwpltora gossypiella (Saunders)) in experiments at Brownsville, Texas. At this level of infestation, losses were about equally distributed between reductions in yield and quality of lint and seed. Lower infestations resulted in losses due chiefly to reduced quality of lint and seed. Reductions in staple length, strength, and fineness or immaturity of fiber were directly related to pink bollworm infestation levels. Likewise, losses in yield and quality of seed were related to pink bollworm infestation levels. In artificially infested bolls, the degree of damage was related to age of boll and number of larvae per boll.

Document Type: Research Article

Publication date: October 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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