Studies on bio-efficacy of newer insecticide molecules against major lepidopteran pest complex of paddy

Different newer insecticides tested against major pests of paddy were: spinetoram 11.7 SC @ 0.5 ml l^-1, cyantraniliprole 10.26 OD @ 1.2 ml l^-1, chlorfluzuron 5.4 EC @ 2.0 ml l^-1, tetraniliprole 18.18 SC @ 0.6 ml l^-1, pymetrozine 50 WG @ 0.6 gm l^-1, chlorantraniliprole 18.5 SC @ 0.3 ml l^-1, triflumezopyrim 10 SC @ 0.5 ml l^-1 and sulfoxaflor 21.89 SC @ 0.7 ml l^-1. The highest mean per cent reduction of incidence and damage caused by S. incertulas and C. medinalis over the control after two sprays was recorded with chlorantraniliprole 18.5 SC @ 0.3 ml l^-1 (71.98% dead heart and 71.39% white ear incidence respectively) (66.62% leaf damage). The next highest mean per cent reduction of incidence and damage was recorded with tetraniliprole 18.18 SC @ 0.6 ml l^-1 (70.52% dead heart and 69.83% white ear incidence respectively) (64.84% leaf damage) followed by cyantraniliprole 10.26 OD @ 1.2 ml l^-1 (68.73% dead heart and 68.97% white ear incidence respectively) (63.05% leaf damage) and spinetoram 11.7 SC @ 0.5 ml l^-1 (67.44% dead heart and 68.23% respectively) (61.28% leaf damage). The remaining treatments were also significantly superior over untreated control in the management of lepidopteran pest complex.