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Systemic insecticides were evaluated for effect on insect control, plant stand, early fruiting. and yield of cotton in 1966 and 1967. Granular formulations of disulfoton, phorate, Allied Chemical GC-6506 (dimethyl p-(methylthio) phenyl phosphate), Hercules 13462 (O,O-dimethyl phosphorodithioate S-ester with N-(1-mercaptoethyl) succinimide), Niagara NIA-10242 (2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate), and Union Carbide UC-21149 (2-methyl-2-(methylthio) propionaldehyde O-(methylcarbamoyl) oxime) applied with the seed at planting gave good initial control of tobacco thrips, Frankliniella fusca (Hinds); UC-21149 gave the best residual control. Seed treated with Azodrin® (3-hydroxy-N-methyl-cis-crotonamide dimethyl phosphate), disulfoton, methomyl, Hercules 13462, and NIA-10242 gave fair to good initial control of thrips. Populations of other insect species did not become a problem. The treatments reduced stands in some tests but not in others. The control of thrips that was achieved with the systemic insecticides resulted in earlier fruiting of plants in 3 of the 6 tests, but yields increased as a result in only 1 test.
Document Type: Research Article
Publication date: December 16, 1968
More about this publication?
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.