BIO-EFFICACY OF INSECTICIDES AGAINST FRUIT BORER (HELICOVERPA ARMIGERA) IN TOMATO (LYCOPERSICON ESCULENTUM)

spinosad 45 SC @ 100 g a.i. ha-1, bifenthrin 10 EC @ 100 g a.i. ha-1 and Bacillus thuringiensis @ 25 g a.i. ha-1 against tomato fruit borer (Helicoverpa armigera). Among all the insecticides, profenophos (1000 g a.i. ha-1) was found to be the most effective one with a maximum reduction in fruit borer population (65.20%), minimum per cent of fruit damage (28.80%) and maximum yield (26.43 kg/20 m 2) followed by bifenthrin @ 100 g a.i.ha-1 with reduced larval population of 64.51 % and damaged fruits 32.60%