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Epoxidation of Aldrin and Heptachlor in Soils As Influenced by Autoclaving, Moisture, and Soil Types1. 2

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Aldrin was applied to Quartz sand, Plainfield sand, Carrington loam and muck soils in order to study its persistence and epoxidation. In addition autoelaed-wet and nonautoclaved dry sand and loam soils were used. Aldrin was readily transformed into dieldrin in a wet-nonautoclaved Carrington loam, but less rapidly so in a muck soil. The amounts of aldrin and dieldrin recovered from aldrin-treated Carrington loam soils were equal 3.3 months after treatment under laboratory conditions at 37• C. and 16 months after treatment under field conditions.

In soils containing a low number of microorganisms (autoc1aved loam, Plainfield sand) or in dry soils the amount of dieldrin formed was small. After heptachlor had been applied to a Carrington loam it was found that this insecticide persisted slightly longer than aldrin, but the amount of heptachlorepoxide formed was smaller than that of dieldrin. A similar study on lindane persistence in a .Miami silt loam is also reported.

Document Type: Research Article

Publication date: April 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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