Bio efficacy of insecticides against stem borer infesting sorghum crop

Abstract

Sorghum (Sorghum bicolor L.) is one of the main staples for the world's poorest and most food-secure people commonly known as jowar in the Indian sub-continent, it grows well in both summer and winter, and is thus both a Rabi and kharif crop. The experiment was carried out at Main Sorghum Research Station, Navsari Agricultural University, Athwa Farm, Surat to test bio efficacy of insecticides against stem borer infesting sorghum crop. Amongst the evaluated three insecticides with three different doses, chlorantraniliprole 18.5 SC @ 4.0 ml/10 lit and emamectine benzoate 5 SG @ 6.25 g/10 lit were found effective giving 53.67 to 58.26 per cent reduction of damage by stem borer over control and both these treatments recorded higher grain yield (1370 to 1414 kg/ha) and net gain of Rs. 28034 to Rs. 29527 as compared to control.