【摘要】 本文系统报道了细辛叶枯病病原学、发生规律及其综合防治的研究结果．该病是一种毁灭性新病害。病原菌为槭菌刺孢（Ｍｙｃｏｃｅｎｔｒｏｓｐｏｒａ　ａｃｅｒｉｎａ（Ｈａｒｔｉｇ）Ｄｅｉｇｈｔｏｎ），属中国真菌新记录种．采用菌块切割水滴保温产孢法解决了病菌人工培养不能形成分生孢子的难题．在人工培养条件下，病菌可以产生红色素．越冬分生孢子具有极强的再生能力，为病害初浸染提供大量菌源．低温高湿强光加在病害流行．采用种苗消毒、田园卫生、遮荫栽培和药剂防治等综合措施可以有效地控制发病．更多还原

【Abstract】 Asarum leaf blight caused by Mycocentrospora acerina was a new disease in Northest China. The optimum temperature of germination for the conidia and growth for the hypha of Mycocentrospora acerina was 15-20℃. The optimum pH value was 7. Under the light conditions,the fungus produced rose-red pigment on PDA and V8.The pathogen could not produce conidia on various kinds of media. By means of cutting the PDA colony, keeping the humidity with Water drops at 15-20℃,the pathogen was able to produce a number of conidia. The primary infection source of the disease was the leaf residue,seeds and seedlings.The overwintered conidia were able to reproduce lots of new conidia for primaly infection in the early spring .The lower temperature (15-20℃). higher humidity and day-light favored to the disease epidemic. By means of following methods, Asarum leaf blight could be controlled effectively;(1)seed and seedling sterilizing with fungicide;(2) Asarum garden sanitation ;(3) sunshading cultivation and(4) control by fungicide.the most effective fungicides were 50% Sumilex wp and 50% Rovralwp.更多还原