In recent years, fall webworm that belongs to international Quarantine Pest appears widely in China, it did great harm to forest trees and brought the inconvenience for people s lifes.

• 美国白蛾作为国际性检疫害虫,近几年相继在我国很多地方出现,不仅使林木受到不同成度的危害,同时给人们生产生活带来不便。