11:45 〜 13:30 [P0689] Ecology of Cephalcia koreana (Hymenoptera: Pamphiliidae) damaging to Abies holophylla plantations: wax and wane in their population *Jong-Kook Jung1, Chayoung Lee2 (1. Kangwon National University (Korea), 2. Kangwon National University (Korea))