Synergistic Effect of Bacillus thuringiensis subsp. aizawai
with Synthetic Pyrethroids against Insecticide Resistant Helicoverpa armigera
(Hubner)
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.
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.
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