University Department of Zoology, L.N. Mithila University, Darbhanga-846 004, Bihar, India
*Corresponding author's e-mail: pkojha2@gmail.com
Online published on 5 November, 2018.
Applications of Helicoverpa armigera Nuclear Polyhedrosis Virus (HaNPV), Quinalphos, Bacillus thuringiensis kurstaki (Btk) and Beauveria bassiana (B.b.) as full dosesgavehundred percent larval mortality tothetestinsect, 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.
Chickpea, Helicoverpa armigera, Interactive effect, Laboratory conditions, Larval mortality, Pesticides, 2nd instar larvae
