author(s)
VVL Renuka and Arundhati Sasmal

abstract
A field trial was conducted for two consecutive kharif seasons of 2016 and 2017 to evaluate the efficacy of certain bio-intensive and chemo-intensive modules against stem borer of rice at Regional Research and Technology Transfer Station, Orissa University of Agriculture & Technology, Bhubaneswar, Odisha, India. The treatment module consisting of Nursery treatment (NT) with fipronil 0.3G@20kg/ha + chlorantraniliprole 0.4G@10kg/ha at 40 DAT + buprofezin 25% SC @825ml/ha at 65DAT proved to be most effective in controlling the stem borer recorded 5.32% dead heart (DH) and 2.67% white ear head (WEH), with highest grain yield (58.5 q/ha), highest net profit (Rs 18267/-) and highest incremental benefit cost ratio (5.85) clearly proved to be the best option for stem borer management. Two bio-intensive management modules comprising of ‘NT + T. japonicum + B. bassiana @2 lt/ha at 30 & 50 DAT+ NSKE 5% at 65DAT’ and ‘NT + T. japonicum + Bt spray@1kg/ha at 30 and 50 DAT + neem oil (1500ppm) spray @1.5lt/ha at 65 DAT’ were found to be statistically at par and stood to be the next best treatment by reducing the stem borer damage during both vegetative and reproductive stages. The bio-intensive management modules showed their eco-friendly attributes towards beneficial insects.