Efficacy of Bacillus thuringiensis Berliner Var. Kurstakiand Var. Morrisoni against Helicoverpa armigera(Hubner)

Indira Bhojne; N. R. Supare; N. G. V. Rao

doi:10.18311/jbc/2004/4038

Efficacy of Bacillus thuringiensis Berliner Var. Kurstakiand Var. Morrisoni against Helicoverpa armigera(Hubner)

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Authors

Indira Bhojne
Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola 441 004, Maharashtra ,IN
N. R. Supare
Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola 441 004, Maharashtra ,IN
N. G. V. Rao
Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola 441 004, Maharashtra ,IN

DOI:

https://doi.org/10.18311/jbc/2004/4038

Keywords:

Bacillus thuringiensis Var, kurstaki, Morrisoni, Helicovejpa armigera.

Abstract

Comparative studies on the efficacy of Bacillus thuringiellsis Berliner var. kurstaki(HD-I) and morrisoni (HD-12), when used alone against second instar larvae of Helicoverpa armigera (Hubner) revealed that the strain kurstaki(HD-l) was more toxic than morrisoni (HD-12). Strain kurstaki (HD-I) could cause 79.38 per cent mortality of second instar larvae of H. armigera at 0.00963 per cent concentration, while morrisoni (HD-12) could cause 89.66 per cent mortality at 0.0576 per cent concentration. The LC₅₀ was 0.0055, whereas that of HD-12 was 0.02%.

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Published

2010-01-01

How to Cite

Bhojne, I., Supare, N. R., & Rao, N. G. V. (2010). Efficacy of Bacillus thuringiensis Berliner Var. Kurstakiand Var. Morrisoni against Helicoverpa armigera(Hubner). Journal of Biological Control, 18(1), 9–12. https://doi.org/10.18311/jbc/2004/4038