Populations of Heliothis zea (Boddie), and 10 predaceous arthropods were sampled in irrigated and dryland cotton fields following infurrow and sidedress applications of the systemic insecticide aldicarb. The numbers of bollworm larvae were much greater in aldicarb-treated, cotton than in untreated cotton. Several applications of insecticide were applied to suppress the bollworm population in irrigated cotton which had received a sidedness application of aldicarb. Little difference was noted in the average number of predaceous arthropods present in aldicarb-treated and untreated cotton before foliar applications of insecticide were required to suppress bollworms in some aldicarb-treated fields. However, samples taken during the single period of greatest bollworm activity indicated that the predaceous insects Geocoris sp., Nabis sp., Hippodomia sp. and Chrysapa sp., as well as spiders, were more abundant in untreated irrigated cotton than in aldicarb-treated irrigated cotton.
Document Type: Research Article
Publication date: August 1, 1971
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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.