Annals of Plant Protection Sciences

Yellow stem borer, Scirpophaga incertulas is a major insect pest causing serious damage to rice crop. Management of the insect pest become difficult due to its concealed feeding habit, which leads opt out other management tactics except chemical control. In the present study some insecticide molecules viz., DPX-RAB-55 106 SC @ 237.5 ml/ha, flubendiamide + thiocloprid 48 SC @ 250 ml/ha, flubendiamide 480 SC @ 150 ml/ha, thiocloprid 240 SC @ 150 ml/ha, rynaxypyr 20 SC @ 150 ml/ha and dinotefuran 20 SG @ 200 g/ha were evaluated. The results suggested that flubendiamide + thiocloprid 48 SC @ 250 ml/ha treated plots had low dead heart damage after second spray (5.7%) followed by flubendiamide 480 SC @ 150 ml/ha (6.4%) and rynaxypyr 20 SC @ 150 ml/ha (7.5%). Similarly white ear head damage was also low (4.2, 5.2 and 5.4%) in these compounds. Yield was recorded in the rynaxypyr treated plots (51.81q/ha) followed by flubendiamide + thiocloprid (49.52q/ha).