杨树是我国华北、东北、西北造林主要速生树种之一。在吉林省则以小美杨中的白城杨和双阳快杨为杨树主要造林树种。它们都具有生长快和适应性强等特点,因此为广大群众所喜爱。但是,杨树破腹病(又称日灼伤)严重地影响了树木生长和材质。致使有些地区还不敢冒然造杨树林,有些地方的杨树林由于破腹病而引起杨树烂皮病和天牛等病虫害发生,大大降 Poplar is one of the main fast-growing tree species afforestation in North China, Northeast China and Northwest China. In Jilin province, the Baicheng Yang and Shuangyang fast Yang are the main afforestation species of Populus in the United States. They all have the characteristics of fast growth and strong adaptability, so they are loved by the masses. However, poplar blisters (also known as sun burns) have a serious impact on tree growth and material. Resulting in some areas not dare to make poplar forests, poplar forest in some places due to breaking belly caused by poplar disease and Pest and other pests and diseases, greatly reduced