Efficacy of different combination of insecticides against cowpea pod borer in cowpea [Vigna ungiculata (L.) Walp.]

Different combinations of insecticides were tested on cowpea crop against cowpea pod borer (Helicoverpa armigera) during 2012-2014 at different time intervals and revealed that lowest H. armigera population was recorded in the treatment of imidacloprid 17.8 SL in combination with spinosad 45 SC (0.57 larva/plant).