杨树病害综述

A Review on Poplar Diseases

杨树病害不但种类多,病原复杂,而且危害严重。杨树新病害的传入,新致病性强的菌株的产生,以及由于环境条件的变化而引起寄主抗病性降低所造成的病害流行,是当前杨树病害发生的重要特点。以抗病育种、严格检疫措施、加强经营管理为主体,辅以化学、生物和物理措施的综合治理,是控制杨树病害行之有效的根本措施。

Varieties of poplar diseases. with their complex pathogens and serio-us harm, are always the important barrier in the development of poplarplantations in the world. The spread of new poplar diseases, the appear-ance of new pathogenetic stains and the prevalence of diseases caused bythe change of environment leading to the reduction of the host resistance,are characterized by the occurence and epidemic of poplar diseases curre-ntly. The fact of severe poplar stem diseases resulted from the leavesdiseases has attracted more attentions of the pathologists. The integratedmanagement of poplar plantations including the resistant breeding, thequarantine. of poplar tree materials and the intensive cultivated managem-ent are effective measures. Moreover, the physical, chemical and biologi-ca1 control methods are still necessary.