Corn Ear worm Control in Sweet Corn1
Author: EDEN, W. G.
Source: Journal of Economic Entomology, Volume 51, Number 6, December 1958 , pp. 822-823(2)
Publisher: Entomological Society of America
Abstract:Experiments on control of the corn earworm, Heliothis zea (Boddie), in sweet corn were conducted in Alabama in 1956 and 1957. Daily applications of 2.0 pounds per acre of DDT as an emulsion spray during the pre-silk and silking periods resulted in over 99% worm-free ears. Results of the experiments showed that the early part of the silking period was the most critical time for protecting corn against the corn ear worm. DDT at 2.5 pounds per acre per application was superior to Phosdrin at 0.25 pound and Chlorthion at 1.0 pound. Thiodan at 2.0 pounds compared favorably with DDT at 2.0 pounds. DDT at 1.0 pound was superior in effectiveness to toxaphene at 2.0 pounds, Hercules AC-528 at 0.5 pound, heptachlor at 0.5 pound, malathion at 0.5 pound, and parathion at 0.25 pound. Sevin (1- naphthyl-N-methyl carbamate) at 2.0 pounds compared favorably with DDT but the formulation used caused severe foliage injury.
Document Type: Research article
Publication date: 1958-12-01
- 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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