| Popis: |
C. sasakii is a pest of rosaceous fruits in eastern Asia, and does not spread easily to the non-native areas and countries. C. sasakii has the potential to fly long distances, but usually flies only within and between canopies of fruit trees. Aerial dispersal to non-native areas has not been recorded. International trade of rosaceous fruits is a possible cause of spread of C. sasakii, but it is difficult for it to enter non-native countries under quarantine inspection. Even if C. sasakii enters non-native countries by international trade, it is not easy to establish a population, probably because the larvae in fruits cannot find a cocooning site near rosaceous plants after escaping from the fruits. However, C. sasakii has a strong impact on the management of rosaceous fruit orchards once a population is established. Damage to fruits can reach 100% in some cases in pears [Pyrus spp.] and 40-100% in apples [Malus spp.] if not controlled. |
