我圃新栽植的杨树大苗防风林带,普遍患溃疡病,病势严重。我们针对溃疡病的病理和发病状况,采用涂抹“不脱酚酰油”进行治疗,取得良好效果,完全控制了病害。具体方法是:6月中旬用刀竖切 I nursery planted poplar birch windbreak, generally suffering from ulcer disease, the disease is serious. We aim at the pathology of ulcer disease and the incidence of the situation, the use of smear “non-phenol oil,” for treatment, achieved good results, complete control of the disease. The specific method is: June mid-cutting with a knife