The two internal fruit feeders are primary pests in apple orchards. Since 1997, G. molesta populations have increased in apple orchards and now outnumber C. sasakii in Korea (Choi et al., 2008). The two leaf rollers (Adoxophyes spp. and A. breviplicanus) are dominant in apple orchards and cause damage of fruits as well as leaves (Choi et al., 2004a).