Abstract:Casinaria nigripes Gravenhorst is the primarily parasitoids of pine caterpillar, Dendrolimus punctams.They attack 1st to 4th instar larva resulting in,some times, the total parasitization up to 66.64%.Casinaria nigripes completes 6 - 7 generations a year with overwintering as larva in its hosts. The development threshold for whole generation is 9.0±0.6℃ with effective temperature summation to be 446.9 day-degrees. Mature larva emerges through host skin and pupates on some needdles and twins. Eight hosts and...