美国白蛾的为害特点与防治技术

The Damage Characteristics and Control Techniques of American White Moth

美国白蛾是世界性的检疫害虫之一,主要为害行道树、观赏树木及果树,原产地为北美洲,主要分布于美国、加拿大、东欧各国及日本、朝鲜等国;在我国,主要分布于辽宁、河北、山东、天津、陕西等地区。该虫以幼虫群集结网为害林叶,并在网内取食叶肉,残留表皮呈白膜状,日久干枯。对美国白蛾的防治首先应加强检疫,并采取以农业防治为基础,化学防治为辅,物理防治和生物防治相结合的方法,以达到综合防治美国白蛾的目的。

American white moth was one of worldwide quarantine pests, and mainly damaged street trees, ornamental trees and fruit trees. It originated in North America, and mainly distributed in the United States, Canada, East Euro- pean countries, Japan, Korea and other countries; in China, it mainly distributed in Liaoning, Hebei, Shandong, Tianjin, Shaanxi and other regions. The larva damaged forest leaves by group massing network, and feed on the leaves in the network, only left the tunica albuginea epidermis, and long dry. The control methods of American white moth were strengthening quarantine at first, and tak- ing the agricultural control as the basis, chemical control as supplement, combin- ing with physical control and biological control, in order to comprehensively control of American white moth.