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紫纹羽病(Helicobasidium Mompa Tanaka),以往文献记载多列为桑树病害,对其为害甘薯的严重性较少注意。近几年来,安徽有些地区由于此病的发生使甘薯受到相当损失。据1957—1958年调查,全省有25个县市发现这种病害,以后又有些地方陆续发现。1961年颖上县刘集公社苏义大队100多亩春甘薯有50％以上的面积发生了紫纹羽病;该县谢桥公社庙后大队160多亩甘薯,发生病害的面积占62％,一般病株率10—30％,严重的达66％,薯块在地里就烂毁。樅阳县在1961年调查,汤沟、长风等四个公社甘薯
Helicobasidium Mompa Tanaka, which has been listed in the literature for many times as mulberry tree disease, seldom deals with the severity of sweet potato damage. In recent years, due to the occurrence of this disease in some areas of Anhui, sweet potatoes have suffered considerable losses. According to the 1957-1958 survey, 25 counties and cities in the province found this disease and later discovered some places. In 1961, Yingli County Liuji Commune Suyi brigade 100 acres of spring sweet potato has more than 50% of the area of the purple pattern feather disease; County Xieqiao commune temple team more than 160 acres of sweet potato, disease area accounted for 62% The general strain rate of 10-30%, a serious up to 66%, tubers in the ground on the rot. Zongyang County in 1961 survey, soup ditch, Changfeng four communes sweet potato