Effects of fly pupae cold storage on the parasitization and reproduction of Nasonia vitripennis.

To investigate the effect of fly pupae cold storage on the parasitization and reproduction of Nasonia vitripennis. the parasitization rate,parasitoid emergence rate,number of adult parasitoids/host,female rate of progeny parasitoid from cold stored fly pupae were observed in the laboratory. Results indicated the parasitic rate,parasitoid emergence rate,number of adult parasitoids/host,female rate of progeny parasitoid emerged from cold stored fly pupae were below than control pupae significantly. The aforesaid examined indexes were all had negative correlation with the cold storage time. From these results,it is concluded that the cold storage of fly pupae has negative effect on the parasitization and reproduction of N. vitripennis.