杨树溃疡病是杨树重要病害之一,近几年,山东省微山县杨树溃疡病普遍发生,2004年发病株率高达15%～41%,影响了树木的正常生长发育,严重者整株死亡。为摸索有效的药剂防治技术,我们于2003～2004年春季进行了腐必治等药剂防治此病的试验研究。一、杨树溃疡病危害症状,病源菌及发病 Poplar canker disease is one of the most important diseases of poplar. In recent years, poplar canker disease in Weishan County of Shandong Province has been widespread. The incidence rate of poplar in 2004 was as high as 15% -41%, affecting the normal growth and development of trees. In severe cases, Whole plant died. In order to explore effective pharmaceutical control technology, we carried out in 2003 ~ Spring 2004 decoction and other drugs to prevent and treat the disease. First, the poplar ulcer disease symptoms, pathogens and pathogenesis