杨树黑星病是一种发生范围十分广泛、危害十分严重的病害,阿勒泰地区各县市平原、天然河谷林及人工林均有发生和分布。本文介绍了该病害的危害对象、症状、特点和发生规律,为尽快控制其危害,提出防治建议。1杨树黑星病的主要危害对象该病首先在立地条件差的地段发病,随树龄的增加病情减轻,与林分密度呈正相关。该病主要危害杨树和柳树类,是常见病害。多发病常引起行道 Poplar black spot disease is a very wide range of occurrence, a very serious damage to the disease, Altai Prefecture counties and plains, natural valley forests and plantations have occurred and distributed. This article describes the hazard of the disease objects, symptoms, features and occurrence of law, as soon as possible to control their harm, put forward prevention and control recommendations. 1 Poplar black star disease is the main target of the disease in the first site of poor disease incidence, with the increase of age to reduce the disease, and the stand density was positively correlated. The disease is a major hazard to poplars and willows and is a common disease. Often caused by pathways