Lopes J, Arantes O M N, Cenci M A
Departamento de Biologia Animal e Vegetal, Universidade Estadual de Londrina, PR, Brazil.
Braz J Biol. 2010 Nov;70(4):1109-13. doi: 10.1590/s1519-69842010000500029.
The aim of this study was to determine the potency (ITU) and efficacy of a liquid formulation of Bacillus thuringiensis israelensis developed by the State University of Londrina named BioUel, against early fourth instar larvae of Aedes aegypti and Culex quinquefasciatus. The ITU/mg of BioUel was 960, the LC₅₀ was of 0.271 (± 0.39) ppm, and the LC₉₅ was 0.634 (± 0.099) ppm, in larvae of C. quinquefasciatus. In A. aegypti larvae, LC₅₀ was 0.332 (± 0.042) ppm and LC₉₅ was 0.694 (± 0.073) ppm. The ITU level of BioUel and its control results were similar to most commercial products tested. Stability was of approximately 90 days, which allows for local production.
