杨树是长江流域及其以北广大地区的主栽树种,它具有适应性强,生长迅速,轮伐期短,用途广泛,适宜工业加工等特点,已在我国广大地区作为速生造林树种进行大面积种植,发展前景十分广阔。随着单一杨树品种的大面积栽植,杨树天牛等病虫的发生与危害呈上升态势,已知国内危害杨树 Poplar is the main tree species in the Yangtze River valley and its vast area north of the country. It has the characteristics of adaptability, rapid growth, short rotation, wide range of uses, suitable for industrial processing, etc., and has been widely used as fast-growing tree species in China. Area of ​​cultivation, development prospects are very broad. With the poplar cultivation of a large area, the occurrence and damage of poplar and other pests and diseases are on the rise, it is known that domestic poplar