Evaluation of Newer Insecticide Molecules Aganist Rice Leaf Folder, Cnaphalocrosis Medinalis Guenee in Dry Direct Sowing Method of RiceCultivation.

摘要

A field trail was conducted at Agricultural College Farm, Bapatla during kharif 2017 to evaluate the efficacy if chlorantraniliprole 9.3% + lambda cyhalothrin 4.6% ZC, flubendiamide 19.92% + thiachloprid 19.92% SC, liamethoxam 1% + chlorantraniliprole 0.5% GR, flubendiamide 39.35% SC, spinosad 45% SC, chlorantraniliprole 18.5% SC, cartap hydrochloride 50% SP against rice leaf folder in dry direct sowing method of rice cultivation. The lata on mean percent leaf damage by leaf folder inferred that flubendiamide 39.35% SC @ 0.3 ml lst proved to be the lost effective insecticide and superior over all other treatments by recording lowest (1.36) mean per cent leaf damage lith 63.71 per cent reduction over control. The insecticides chlorantraniliprole 9.3% +lambda cyhalothrin 4.6% ZC 5)0.8 ml 1st and chlorantraniliprole 18.5% SC @ 0.3 ml 1"' found on par with flubendiamide 39.35% SC in suppressing k pest with 1.62 and 1.68 mean per cent leaf damage and 56.72, 54.80 per cent reduction over control respectively md these three insecticide treated plots recorded the highest grain yield.