The present investigation aimed to investigate influence of different temperature viz. 15, 20, 25, 30 and 35[degree]C on the activity of larval parasitoid C. piutellae and the extent of parasitization. The extent of parasitism was moderate and at par between 20 to 30[degree]C. Parasitism was reduced to 35[degree]C and 15[degree]C. The temperature between 20 to 30[degree]C was favourable for the activity of larval parasitoid C. plutellae. Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Abiotic factors; Physical factors Plutella xylostella (Plutellidae); Hymenopteran parasites; Cotesia plutellae; Temperature influence on prevalence; Temperature Cotesia plutellae (Braconidae); Lepidopteran hosts; Plutella xylostella; Temperature influence on prevalence; Temperature none