Insecticides effected important changes in the structure and physiology of the Brassica oleracea L. (Cruciferae) community. The number of species in some insecticide-treated communities were reduced to one-half, relative to the control community. Insecticides severely reduced the numbers of many species populations, but with some insect populations the insecticides caused density increases and in a few cases the populations increased 10-fold. The significant increase in pest populations resulted in most instances from insecticide destruction of natural enemies. Insect control without the usual complications of outbreaks, resistance, and residues is possible if the ecology of populations and communities is thoroughly understood and then insecticides are selectively applied.
Document Type: Research Article
Publication date: February 1, 1961
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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.