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Effectiveness of Fenoxycarb for Control of Red Imported Fire Ants (Hymenoptera: Formicidae)1

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Abstract:

The insect growth regulator fenoxycarb reduced colony size indices of laboratory colonies of red imported fire ants, Solenopsis invicta Buren, by 93-98% within 8 wk after treatment. Reductions were caused by lethality to developing immatures, inhibition of egg production by the queen, and a shift in caste differentiation from worker to sexual forms. No significant difference was noted in the response of colonies to 5 or 10mg (AI) per colony; the majority of colonies treated at either dosage died as a result of the treatment. In field tests, baits containing fenoxycarb eliminated ca. 60% of the colonies on treated plots and reduced total ant population indices by 67-99% within 12-13 wk after treatment at rates of 6.2-22.6 g (AI)/ha.

Document Type: Research Article

Publication date: February 1, 1988

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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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