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1 December 2008 Riceland Mosquito Management Practices for Anopheles quadrimaculatus Larvae
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Abstract

Two separate but related studies were conducted regarding management of Anopheles quadrimaculatus larval populations in commercial rice fields near Cleveland, MS, in 2004. Study 1 was to evaluate the effectiveness of 2 treatments of aerially applied ultra-low volume applications of Bacillus thuringiensis var. israelensis (Bti) against An. quadrimaculatus larvae in dense, high-canopy mid- to late-season rice crop. Study 2 was to investigate the effect of preflood treatments of lambda-cyhalothrin (Karate®), which is commonly used against rice water weevil (Lissorhoptrus oryzophilus), on An. quadrimaculatus larvae. Excellent initial, but short residual control (>99% control 1 day after treatment) was observed in the Bti-treated fields in both mid- and late-season rice. Little or no effect on mosquito larvae was observed in the lambda-cyhalothrin–treated fields. Results indicate that Bti can be effectively used by mosquito management personnel to control larval populations of An. quadrimaculatus in late-season rice fields; however, lambda-cyhalothrin did not effectively control larval An. quadrimaculatus when applied preflood to rice fields.

R. A. Allen, W. W. Wilkes, C. N. Lewis, and M. V. Meisch "Riceland Mosquito Management Practices for Anopheles quadrimaculatus Larvae," Journal of the American Mosquito Control Association 24(4), 534-537, (1 December 2008). https://doi.org/10.2987/5792.1
Published: 1 December 2008
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