Gypsy moth parasitoid complex at Mt. Halla National Park, Cheju Island, Korea

A study of the parasitoid complex attacking gypsy moth, Lymantria dispar (L.), at Mt. Halla on Cheju Island, Korea, revealed the presence of nine natural enemies: one egg parasitoid, four larval parasitoids, one pupal parasitoid, one parasitic nematode and two diseases, NPV and Beauveria prob. bassiana, were the main mortality factors. Only 23% of the parasitoid species known to occur in mainland Korea were recovered on this volcanic island, suggesting that a number of species have not yet become established there.