Studies on field evaluation of imidacloprid (Confidor 17.8 SL) against sucking pests of cotton in rainfed conditon

摘要

Bioefficacy of imidacloprid (Confidor 17.8 SL) as foliar application against sucking pests of cotton was evaluated at Cotton Research Station, Khandwa during 2003-04 and 2004-05. Four doses of imidacloprid (Confidor 350 SC @ 60 and 75 ml/ha and Confidor 70 WG @ 30 and 35 gm/ha) were compared with clothianidine 50 WDG @ 30 g/ha and an untreated control. Three foliar sprays were applied on the basis of economic threshold level. Confidor 350 SC @ 75 ml/ha was found to be superior over all the treatmentsin controlling aphid and jassid population on the crop. Higher yield (1259.6 kg/ha) were recorded from the plot treated with confidor 350 SC @ 75 ml/ha, followed by confidor 350 SC @ 60 ml/ha (1188.8 kg/ha).