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杨水泡溃疡病是杨树上发生最普遍、危害最严重的干部病害,常引起幼树死亡或大树枯梢,新移栽的树木更为严重,能引起大批树木死亡。该病主要危害枝干,以菌丝体和未成熟的子实体在病组织内越冬。主要发生于苗木移植过程中,4月份开始发病,5月下旬至6月形成第一个发病高峰期,7～8月随气温增高病势减弱,9月份出现第二个发病高峰期,10月下旬该病停止侵染。为了解决生产上的难题,我们在病害高
Poplar canker disease is the most common and most endangered cadre disease in poplar. It often causes the death of young trees or dead trees. The newly transplanted trees are even more serious and can cause death of a large number of trees. The disease is mainly endangering the branches, with mycelium and immature fruiting bodies overwintering in diseased tissues. Mainly occurred in the seedling transplantation process, the onset of disease in April, the first peak incidence in late May to June, July to August with the increase of temperature weakened, the second peak incidence in September, late October The disease stops infecting. In order to solve the production problems, we are at a high level of disease