近几年，陵园内大部分白皮松发生了腐烂病，病菌主要侵染树干，其次为侧枝。笔者将近几年的观察结果报道如下。１白皮松腐烂病的症状每年４月，患病的树干或侧枝失绿，灰白色，肿胀松软，有酒糟味。用手指挤压病部，微凹。一般在５月中旬，病斑中心自然纵向开裂，深达木质... In recent years, most of the Pinus dens in the cemetery rot disease occurs, the main bacteria infecting the trunk, followed by the collateral. The author’s observations in recent years are reported below. 1 symptoms of white pine pupa rot April each year, the diseased trunk or side branches green, gray, swollen and soft, with wine bad smell. Squeeze the diseased part with your fingers, slightly concave. Usually in mid-May, the lesion center longitudinal cracking, deep wood ...