Efficacy of thiamethoxam as seed dresser against sucking pest of cotton

摘要

To evaluate the bio-efficacy of thianicotynyls as seed dressers, an experiment was conducted alongwith standard check against sap sucking pests of hirsutum cotton hybrid JKHy-1 during 1999-2000 and 2000-2001 at AICCIP, Khandwa. The seed dressing insecticides viz. imidacloprid 600 FS @ 5,9,12 ml/kg and imidacloprid 70 WS @ 7.5 g/kg seed, Thiamethoxam 70 WS @ 2.8,4.28 g/kg and standard check carbosulfan 25 DS @ 50 g/kg kept the population of jassid and aphid below ETL up to 40 days after germination. All seed dressing insecticides recorded significantly higher seed cotton yield than standard check and untreated control. Maximum net profit (Rs.4465.12/ha) was gained from plot treated with imidacloprid 600FS @ 12 ml/kg seed. It also enhanced the growthof cotton plants.