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In 1959, 1960, and 1961 sweep-net collections were made in several field-plot experiments on cotton in the vicinity of Stoneville, Mississippi. The numbers of several species of insects and spiders were recorded following applications of various insecticides and insecticide mixtures. Early-season applications for thrips control had little effect on the insect populations studied several weeks later during the fruiting period. Applications made during the fruiting period of the cotton plant resulted in population reductions of many of the insect species and spiders studied. The species affected and the amount of reduction were quite variable, depending on the insecticide or mixture used, dosage, number of applications, and timing of applications. Insecticide mixtures containing DDT were in general more toxic to most species than any single insecticide.
Document Type: Research Article
Publication date: October 1, 1964
More about this publication?
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.