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

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

Authors: P. Duraimurugan, A. Regupathy

Journal: Journal of Biological Sciences

HEC Recognition History
No recognition records found.

Publisher: Asian Network for Scientific Information (ANSInet)

Country: Pakistan

Year: 2005

Volume: 5

Issue: 6

Language: English

DOI: 10.3923/jbs.2005.678.680

Categories
Genetics (16287) Biochemistry (18816) Entomology (5304) Pesticide Science (46) Agricultural Science (3867)

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 Btapyrethroids at LC25LC25
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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