Control of the Corn Earworm Attacking Sweet Corn
Author: SEMEL, MACKIE
Source: Journal of Economic Entomology, Volume 52, Number 6, December 1959 , pp. 1111-1114(4)
Publisher: Entomological Society of America
Abstract:Following a season of extensive damage to the commercial sweet corn crop, producers on Long Island became alarmed at the possibility that the corn earworm, Heliothis zea (Boddie), had become resistant to DDT. Experiments conducted during the next three seasons dispelled this view. Sevin® (1-naphthyl-N-methyl carbamate), used at equivalent rates, was shown to be as effective as DDT. Endrin, Thiodan® (6,7,8,9,10,10-hexachloro-1,5,5a,6,9,9a-hexahydro-6,9-methano-2,4,3-benzodioxathiepin-3-oxide), Guthion® (O,O-dimethyl S-(4-oxo-3H-l,2,3- benzotriazine-3-methyl) phosphorodithioate), and Shell 4402 (1,3,4,5,6,7,8-octaehloro-3a,4,7,7a-tetrahydro-4,7-methanophthalan) gave promising results at the dosages used. In addition, endrin, DDT, Guthion, Phosdrin® (1-methoxycarbonyl-lpropen-2-yl dimethyl phosphate), and ryania were found to reduce considerably ear damage caused by the European corn borer, Pyrausta nubilalis (Hbn.). Thiodan was partially effective.
Analyses of corn samples revealed the absence of DDT and the presence of insignificant residues of Sevin on the husked ear.
Experiments conducted concurrently with the aforementioned tests revealed that the addition of various surface-active supplements to DDT sprays apparently had little or no effect in enhancing or prolonging the effectiveness of the sprays with the possible exception of Atlas NNO which, in one test, seemed to improve control.
Document Type: Research Article
Publication date: 1959-12-01
- 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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