Bio-efficacy of imidacloprid 17.1 SL against sucking pests of cotton
Roop Singh Meena, Keshav Mehra and Vikram
An experiment was conducted at Agricultural Research Station, Sriganganagar, (SKRAU, Bikaner) to evaluate the bio-efficacy of imidacloprid 17.1 SL against important sucking pests of cotton viz., jassid, whitefly and thrips during the Kharif, 2016. The insecticides viz., imidacloprid 17.1% SL @ 150, 200 & 250 ml ha-1, imidacloprid 17.8% SL @ 125 ml ha-1, acetamiprid 20% SP @ 100 g ha-1 and thiamethoxam 25% WG @ 200 g ha-1 were applied two times at ETL. Among the treatments, imidacloprid 17.1% SL @ 250 ml ha-1 was found most effective against jassid, whitefly and thrips in cotton crop which was at par with imidacloprid 17.1% SL @ 200 ml ha-1 and thiamethoxam 25% WG @ 200 g ha-1. Highest seed cotton yield (16.17 q ha-1) was recorded in the plots treated with imidacloprid 17.1% SL @ 250 ml ha-1.