A Comparison of the Toxicity of Insecticides for the Control of Corn Earworm on Sweet Corn1

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Experiments to control the corn earworm, Heliothis zea (Boddie), have been conducted in southern California with 69 different formulations during the past 10 years. These individual-ear, paint-brush dust tests showed Sevin® (1-naphthyl-N-methyl carbamate), Thiodan® (6,7,8,9,10, 10-hexachloro-1,5,5a,6,9,9a-hexahydro- 6,9-methano-2,4,3-benzodioxathiepin-3-oxide), heptachlor, Dipterex® (O, O-dimethyl 2,2,2-trichloro-1-hydroxyethylphosphonate), and isodrin equal to or slightly better than a 5% DDT standard treatment. The higher dosages of malathion, Diazinon® (O,O-diethyl O-(2-isopropyl-4-methyl-6-pyrimidinyl) phosphorothioate) and Guthion® (O, O-dimethyl S-(4-oxo-3H-l, 2,3-benzotriazine-3-methyl) phosphorodithioate) approached DDT in effectiveness, while all other materials were poor or ineffective.

Document Type: Research Article

Publication date: February 1, 1960

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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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