Residual Effectiveness of Chlorinated Hydrocarbons for Control of the Imported Fire Ant¹

Authors: BLAKE JR., G. H.; EDEN, W. G.; HAYS, K. L.

Source: Journal of Economic Entomology, Volume 52, Number 1, February 1959 , pp. 1-3(3)

Publisher: Entomological Society of America

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Abstract:

Experiments were conducted in Alabama from 1953 to 1958 on control of the imported fire ant, Solenopsis saevissima v. richteri Forel. Chlordane as a dust and in granular formulation, aldrin in emulsion spray and granular formulation, dieldrin in emulsion spray and granular formulation and in fertilizer mixture, and heptachlor in granular formulation and fertilizer mixture were applied in late winter or early spring in a series of experiments to permanent sod lands. Two pounds of heptachlor or dieldrin, or 4 pounds of chlordane per acre, when broadcast as granules, were highly effective for control of the ant and afforded good control for a period of 3 to 5 years. In one experiment, granulated dieldrin was effective for a longer period than a dieldrin emulsion spray. Lower dosages of the insecticides gave good control for 1 year after treatment, but they were ineffective thereafter. When the insecticides were mixed with fertilizer, approximately the same degree of fire ant control was obtained as when the insecticides were used alone. Chlordane mound treatment killed the ants in the treated mounds but did not prevent reinfestation. When broadcast treatments lost their effectiveness, the number of mounds per acre was greater than on the non-treated areas, but the new mounds were smaller in size. Based on 1-year results, airplane application of 5% or 10% heptachlor at a rate of 2 pounds of technical material per acre were equally effective for control of the imported fire ant. Soil type appeared to have no effect on fire ant control.

Document Type: Research article

Publication date: 1959-02-01

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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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