Materials for Control of Boll Weevils,1 Bollworms,2 and Tobacco Budworms2 on Cotton at Stoneville, Mississippi3,4

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When experimental insecticides were evaluated for control of boll weevils, Anthonomus grandis Boheman; bollworms, Heliothis zea (Boddie); and tobacco budworms, H. virescens (F.), on cotton in field-plot tests at Stoneville, Miss. in 1969, CIBA C-9491 (0- (2,5-dichloro- 4-iodophenyl) 0,0-dimethyl phosphorothioate) and Velsicol VCS-506 (0- (4-bromo-2,5-dichlorophenyl) O-methyl phenylphosphonothioate) applied as conventional emulsifiable concentrate sprays gave control of Hetiothis spp., primarily tobacco budworms, comparable to the standard treatment. Several other materials including formulations of Bacillus thutringiensis Berliner were less effective. Ultra low volume (1/2 gal or less/acre) sprays of EPN (O-ethyl O-p-nitrophenyl phenylphosphonothioate), EPN + methyl parathion, malathion + methyl parathion, methyl parathion, and toxaphene + DDT + methyl parathion gave very good control of Hetiolhis. Control of the Heliothis resulted in increases in yield of as much as a bale of seed cotton/acre.

Document Type: Research Article

Publication date: April 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.
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