Bio-efficacy of Spinetoram 6% w/v (5.66%w/w) + Methoxyfenozide 30% w/v (28.3%w/w) SC against lepidopteran insect pests in Rice ecosystem

Abstract

A field experiment was conducted to evaluate the bio efficacy of different doses of Spinetoram 6% + Methoxyfenozide 30% SC against lepidopteran insect pest in paddy at Agricultural Research Station, Kawadimatti during 2014-15. The results revealed that application of Spinetoram 6% w/v + Methoxyfenozide 30% SC @ 400ml/ha was found to be excellent insecticide in suppressing the leaf folder and stem borer population during kharif 2014-15 paddy crop by registering 0.52 % and 0.78 % reduction over control of leaf folder and stem borer, respectively. The next best treatment was Spinetoram 6% w/v + Methoxyfenozide 30% SC @ 375 ml/ha with 0.71 % and 1.15 % reduction over control of leaf folder and stem borer, respectively. The effect of these applications was also resulted on the yield attributes, with highest grain yield of 52.89 q/ha was observed in Spinetoram 6% w/v + Methoxyfenozide 30% SC @ 400 ml/ha treated plot followed by Spinetoram 6% w/v + Methoxyfenozide 30% SC @ 375 ml/ha (51.88 q/ha) and did not have any severe depressing effect on the natural enemies in the field when applied at recommended doses.