Long-Term Effects of Carbon in Reducing Uptake of Insecticidal Soil Residues by Crops1
Authors: LICHTENSTEIN, E.P.; SCHULZ, K.R.; FUHREMANN, T.W.
Source: Journal of Economic Entomology, Volume 64, Number 3, June 1971 , pp. 585-588(4)
Publisher: Entomological Society of America
Abstract:The long-term effects of one soil treatment with activated carbon in reducing the uptake of insecticidal residues from heptachlor- and aldrin-treated soils were investigated. The experiments demonstrated that one soil treatment with carbon at 2000 ppm in 1967 sufficed to substantially reduce the translocation of insecticidal residues from soils into carrots and potatoes that were grown in these soils during the following 4 growing seasons, Due to the presence of carbon in soil. the insecticidal residues became increasingly bound to the soil-carbon mixture as time progressed. making it impossible to fully recover these residues by standard extraction procedures. AI though insecticidal residues were present in the carbon-treated soil, they were not as available for penetration into crops grown in these soils. The reduction in the uptake of heptachlor, heptachlor epoxide. and γ-chlordane residues by carrots and potatoes amounted to 61-81 % and to over 50% in reducing the uptake of aldrin-dieldrin residues. The reduction in insecticide uptake due to carbon in the soil was different for heptachlor, heptachlor epoxide, and γ-chlordane, indicating different adsorption rates of these chemicals to soils and/or different penetration rates for each insect icicle into crops.
Document Type: Research Article
Publication date: June 1, 1971
- 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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