Residues of Heptachlor and Heptachlor Epoxide in Wheat Treated to Control the Wheat Stem Sawfly1,2,3

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Abstract:

Granular formulations of heptachlor and heptachlor epoxide were applied in the furrow at seeding time with a fertilizer attachment on a press drill (6-inch row spacing) or with a single-row belt seeder (12-inch row spacing). Ceres wheat was used with the press drill, and Thatcher wheat was used with the belt seeder. Treated plants were analyzed for residues of heptachlor and heptachlor epoxide by the gas chromatography method, and residues in green plants, straw, and grain samples were determined and compared with degree of control of the wheat stem sawfly, Cephus cinctus Norton, at harvest.

Translocation of heptachlor and heptachlor epoxide in the wheat plant killed larvae of the wheat stem sawfly in the stem. The percentage of larvae killed in the stems was determined by noting the number of cut stems at harvesttime in the check and treated plots.

Document Type: Research Article

Publication date: February 1, 1967

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.
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