拜城县试验站科研示范苹果园8hm2（120亩），在1995和1996年春季都有不同程度的苹果腐烂病发生，严重危害果园生产。一、症状腐烂病为害苹果树的主干、主技。主要在主干基部背阴处（北边）皮层发病，造成皮层腐拦。发病时间多在春季四月份。新发病斑呈红褐色软拦，用手指压时有 Baicheng County Experimental Station demonstration demonstration orchard 8hm2 (120 acres), in the spring of 1995 and 1996 have varying degrees of apple rot disease, seriously endangering orchard production. First, the symptoms of rot disease apple tree trunk damage, the main technology. Mainly at the base of the shade of the trunk (north) cortical disease, resulting in cortex rot barrier. The onset time in the spring of April. The new spot was reddish brown soft bar, pressure with your fingers sometimes