The field efficacy of chosen insecticides was studied during two consecutive years showed that chlorantraniliprole 18.5 SC was incredibly effective insecticide in managing the population of diamond back moth, Plutella xylostella Linnaeus on cabbage, Brassica oleracea var. capitata and significantly differed with spinosad 2.5 SC. Residue analysis of chlorantraniliprole 18.5 SC was estimated at recommended and doubles the recommended dose on cabbage crop to study its dissipation behaviour. The average initial residues of chlorantraniliprole 18.5 SC was varied from 0.379 to 0.021 mg kg -1 and dissipated 80.21 % after 5th day of application at recommended dose and 0.828 to 0.053 mg kg-1 with 93.59 % dissipation after 10th day of application at double the recommended dose, respectively. The half-life values at recommended and double the recommended dose were 1.05 and 1.41 days, respectively. At 10th and 15th day residues of chlorantraniliprole were below limit of quantification (0.01mg kg-1) after application and below maximum residue limit (0.03 mg kg-1) at 7th and 15th day at recommended and double the recommended dose, respectively.