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杨树杨疡壳孢菌(Dothichiza populea)溃疡病是杨树的一种毁灭性病害。从三十年代以来,欧洲和北美一些国家的杨树普遍严重受害成灾,我国以前未见报道,列为重点检疫对象。但是,近几年来,该病已在我国少数省的个别苗圃发生。据李传道副教授报道,于1978年春南京林产化工学院苗圃发现该病为害合作杨和蒙古杨,这批苗木已全部销毁。1979年春,我们在沈阳市浑河苗圃的5年生北京杨和3年生晚花杨中发现病株;1980年春,又在该圃原林地和中国科学院林业土壤研究所树木园移栽的3年生小黑杨上见有该病发生,当年将病株全都伐除处理。根据目前国外对该病害的研究
Poplar Dulcimer populace canker is a devastating disease of poplar. Since the 1930s, poplar trees in some countries in Europe and North America have been widely and severely victimized. China has not previously reported it and has been listed as a key quarantine target. However, in recent years the disease has occurred in individual nurseries in a few provinces of our country. According to Associate Professor Li Chuandao reported that in spring of 1978, Nanjing Institute of Chemical Engineering and Forestry nursery found the disease and the cooperation Yang and Mongolia Yang, these seedlings have been destroyed. In the spring of 1979, we found diseased plants in Beijing Yang and 3-year-old late-blooming Yangsheng in Hunhe nursery in Shenyang. In the spring of 1980, we also found 3-year-old small plants transplanted in the original forest land of the nursery and Arboretum of the Institute of Forestry and Soil Science, Chinese Academy of Sciences Black Poplar saw the disease occurred, then all diseased plants were removed. According to the current foreign research on the disease