Efficacy of novel insecticides against shoot and fruit borer (Earias vittella Fabr.) in okra crop

Seven novel insecticides (imidacloprid, fipronil, indoxacarb, endosulfan, malathion, Roket and neemarin) with an un treated control were tested for minimizing Earias vittella infestation in okra crop. Three sprayings, first at 30 days after sowing and second and third subsequent sprayings at 15 days interval were done. Data were recorded on 10th day after each spraying. All the treatments were found effective in minimizing fruit infestation over control and indoxacarb was proved to be the best one among all the treatments. After 10th day of first, second and third spraying, infestation was 14.47, 2.68 and 5.68 per cent, respectively. While neemarin was lesser effective having higher fruit infestation of 47.38, 30.53 and 33.52 per cent, respectively over control after 10th day of first, second and third spraying. The yield of okra fruits showed that indoxacarb recorded the highest fresh fruit yield i.e. 7.00 kg per plot (58.33 q/ha) with 42.86 per cent in creased yield as compared to control. While neemarin recorded minimum fresh fruit yield i.e. 5.27 kg per plot (43.89 q/ha) with 24.05 per cent in creased fruit yield as compared with control.