author(s)
Soumya Sarathi Kundu, Dhiren Chettri, Subrata Chatterjee and Ajoy Kumar Mukhopadhyay

abstract
A field experiment was conducted in the kharif, 2015 and Boro, 2016 – 17 to evaluate the efficacy of the Novaluron 5.25% + Emamectin benzoate 0.9% SC against Rice stem borer (Scirpophaga incertulas) on rice cv MTU-7029 (Swarna). In both the seasons Novaluron 5.25% + Emamectin Benzoate 0.9% SC @ 1500-1750ml/ha gave best control of stem borer with maximum percent reduction of dead hearts. The highest yield and highest cost-benefit ratio was recorded with Novaluron 5.25% + Emamectin Benzoate 0.9% SC @ 1500 ml/ha in both the seasons. No effect on natural enemies was found or recorded.