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此病分布于河北省24个县、市,山东、四川、江苏亦有发生。病原鉴定为发光假密环菌[Armillariella tabescens(Scop.ex Fr.)Singer],并非Armillariella mellea 菌所致。在土壤及朽根上均未发现菌索,在人工培养基上,菌索生长茂盛。用子实体、病土及已无菌丝膜腐朽病根接种不能传病,病根紧接健根全能发病,否则不能发病。病、健根接触是病害传播的主要方式。据田间调查,土湿即使很高(20%),但地温较低(10℃),病菌不能活动;若土温在15℃左右,土湿在12%以上,病菌开始活动;当土温在25°～30℃,土湿愈大病菌发展愈速;如土湿长期在5%以下,菌即死亡。病区开沟封锁,能防止病害扩散蔓延。
The disease is located in 24 counties in Hebei Province, city, Shandong, Sichuan, Jiangsu also occurred. The pathogen was identified as Armillariella tabescens (Scop. Ex Fr.) Singer, not by Armillariella mellea. In the soil and roots were not found on the roots, in artificial media, lush growth of bacteria. With fruiting bodies, soil disease and has no mycorrhizal inoculation decay root disease can not be transmitted, the root of disease followed by Jiangan Almighty, or can not disease. Diseases, health root contact is the main way of disease transmission. According to the field survey, if the soil humidity is high (20%) but the ground temperature is low (10 ℃), the bacteria can not move. If the soil temperature is about 15 ℃, the soil moisture is above 12% 25 ° ~ 30 ° C, the greater the wet soil bacteria faster development; such as soil wet long-term in 5%, the bacteria die. Drainage block ward, to prevent the spread of disease spread.