Legume Research

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Legume Research, volume 41 issue 5 (october 2018) : 784-787

Laboratory evaluation of certain bio-pesticides against the larvae of Helicoverpa armigera Hubner

*P.K. Ojha, R. Kumari, N.K.Pandey
1<p>University Department of Zoology,&nbsp;L.N. Mithila University, Darbhanga-846 004, Bihar, India</p>
Cite article:- Ojha *P.K., Kumari R., N.K.Pandey (2017). Laboratory evaluation of certain bio-pesticides against the larvae of Helicoverpa armigera Hubner . Legume Research. 41(5): 784-787. doi: 10.18805/lr.v0i0.7852.

Applications of Helicoverpa armigera Nuclear Polyhedrosis Virus (HaNPV), Quinalphos, Bacillus thuringiensis kurstaki (Btk) and Beauveria bassiana (B.b.) as full doses gave hundred percent larval mortality to the test insect, 2nd instar larvae of Helicoverpa armigera. Treatment combinations containing half doses of HaNPV + Btk, HaNPV + B.b., HaNPV + Quinalphos, Btk + B.b., Btk + Quinalphos, B.b.+ Quinalphos, also gave cent percent larval death.  Azadirachtin as half dose of application was found to be least effective (50%). However, all the treatment combinations were found effective over the untreated control. 


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