随着木材加工业和人们生活需求的快速发展,平原地区木材供求日趋紧张,为缓解木材紧缺问题,很多地方掀起了发展杨树速生丰产热潮,一些地方更是把杨树作为一种产业来发展。然而随着速生杨树纯林栽植面积的不断扩大,病虫害发生越来越严 With the rapid development of the wood processing industry and people’s daily needs, timber supply and demand in the plains are becoming more and more tense. In order to alleviate the shortage of wood, the popularization of poplar fast-growing has been started in many places and the poplar has been developed as an industry in some places . However, with the planting area of ​​poplar poplar pure forest growing, the occurrence of pests and diseases is getting more and more serious