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Journal of Biological Sciences
  Year: 2005 | Volume: 5 | Issue: 6 | Page No.: 678-680
DOI: 10.3923/jbs.2005.678.680
 
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Synergistic Effect of Bacillus thuringiensis subsp. aizawai with Synthetic Pyrethroids against Insecticide Resistant Helicoverpa armigera (Hubner)

P. Duraimurugan and A. Regupathy

Abstract:
Studies were carried out to find the effects of joint action between Bacillus thuringiensis subsp. aizawai (Bta) (Agree®) and synthetic pyrethroids against third instar larvae of H. armigera on different hosts. The joint action of Bta+pyrethroids at LC25+LC25 revealed supplemental synergism as the combined application on different hosts showed 4.75-21.72 and 18.36-38.26% more than the expected mortality at LC50 of Bta alone and LC50 of pyrethroids alone, respectively.
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How to cite this article:

P. Duraimurugan and A. Regupathy , 2005. Synergistic Effect of Bacillus thuringiensis subsp. aizawai with Synthetic Pyrethroids against Insecticide Resistant Helicoverpa armigera (Hubner). Journal of Biological Sciences, 5: 678-680.

DOI: 10.3923/jbs.2005.678.680

URL: https://scialert.net/abstract/?doi=jbs.2005.678.680

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