Efficacy of Chemical Insecticides against Diamond Back Moth, Plutella xylostella L. on Cabbage under Field Condition

The treatment spinosad was emerged as the most effective treatment among the tested insecticides on the basis of larval count and yield of marketable cabbage head, followed by emamectin benzoate, chlorantriniliprole, flubendiamide, lufenuron and novaluron under the field condition. The larval count and yield of marketable cabbage heads in the different treatment ranged from 0.27 to 0.89 and 250.88 to 189.60 q/ha respectively as against 9.16 and 103.56 q/ha in untreated control. Spinosad was recorded less number of larvae (0.27 larvae/plant) with the highest yield (250.88 q/ha). All the treatments except novaluron were effective in controlling the diamond back moth (DBM) population and all the treatments were also observed to be significantly superior over control.