| Six species parasitoids were found in L. trifolii, they were Chysocharis pentheus (Walker)，Chysonotomyia okazakii (Kamijo)，Chysonotomyia formosa (Westwood)，Chysocharis. oscinidis Ashmead，Hemiptarenus varicornis (Girault) and Opius dimidiatus (Ashmead).The parasitoids maily parasited the 2nd and 3rd larvae of L. trifolii. The parasitoids appeared in April, May and November and the highestparasitism was observed in May, which was 40.03%, and the parasitism in April and November was 31.51% and 11.16%, respectively. |
