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2011•Journal of the American Mosquito Control AssociationRequires access

Field Evaluation of Bactimos Pt Against Chironomid Midge (Diptera: Chironomidae) Larvae in Residential Ponds

Elmer W. Gray, Robert A. Fusco, Candace Royals, Ray Noblet, R. D. Wyatt

Open publisher page 3 citations

Abstract

We evaluated Bactimos PT (Bacillus thuringiensis subsp. israelensis [Bti]) against larval populations of Glyptotendipes paripes at 30 kg/ha in man-made lakes on Hilton Head Island, SC. Three treatments were "whole-pond" treatments, while the 4th consisted of treating a "band" along the edge of a pond where significant larval populations had been observed. Larval populations were reduced by an average of 95% at day 7, 70% at day 14, and 50% at day 21 posttreatment in the whole-pond treatments. Initial larval suppression with the band treatment was similar to the whole-pond treatments, indicating that suppression activities can be targeted to specific areas of a larval habitat.

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What this paper is about

We evaluated Bactimos PT (Bacillus thuringiensis subsp. israelensis [Bti]) against larval populations of Glyptotendipes paripes at 30 kg/ha in man-made lakes on Hilton Head Island, SC. Three treatments were "whole-pond" treatments, while the 4th consisted of treating a "band" along the edge of a pond where significant larval populations had been observed. Larval populations were reduced by an average of 95% at day 7, 70% at day 14, and 50% at day 21 posttreatment in the whole-pond treatments. Initial larval suppression with the band treatment was similar to the whole-pond treatments, indicating that suppression activities can be targeted to specific areas of a larval habitat.

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Available abstract

We evaluated Bactimos PT (Bacillus thuringiensis subsp. israelensis [Bti]) against larval populations of Glyptotendipes paripes at 30 kg/ha in man-made lakes on Hilton Head Island, SC. Three treatments were "whole-pond" treatments, while the 4th consisted of treating a "band" along the edge of a pond where significant larval populations had been observed. Larval populations were reduced by an average of 95% at day 7, 70% at day 14, and 50% at day 21 posttreatment in the whole-pond treatments. Initial larval suppression with the band treatment was similar to the whole-pond treatments, indicating that suppression activities can be targeted to specific areas of a larval habitat.

Key concepts: Chironomidae, Midge, Biology, Larva, Ecology, Zoology

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