Evaluation of a new formulation of Bacillus thuringiensis israelensis

Evaluation of a new formulation of Bacillus thuringiensis israelensis

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...

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Bibliographic Details
Main Authors: J. Lopes, OMN. Arantes, MA. Cenci
Format: Article
Language:English
Published: Instituto Internacional de Ecologia
Series:Brazilian Journal of Biology
Subjects:
Aedes aegypti
biological control
bio-insecticide
Culex quinquefasciatus
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842010000500029&lng=en&tlng=en
Description
Summary: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.
ISSN:1678-4375

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