花生白絹病在省内发生普遍。据在霍山、六安、霍丘、金寨、肥东、合肥等地調查,尚未发現无病区。1957年調查花生七十一亩,发病面积占75.6%;1958年調查花生三千四百五十四亩,发病面积占94.8%;1959年在合肥郊区調查,花生发病田占花生田70%左右。植株发病率一般在5%左右,高者达30%,个别地块发病率高达50%以上。病害在花生生长期都能发生,主要在7月下旬至9月上旬。植株早期发病,重的很快枯死,顆粒无收;后期染病,重者亦引起枯死,輕的虽不死去,伹减产很大,品質显著变劣。白絹病菌是一种土壤传染的病害。病菌在土壤中可存活四至五年,輪作防病虽属有效,伹不理想捎诓≡闹鞣段豕? Peanut Sclerotium occurs prevalent in the province. According to the investigation in Huoshan, Lu’an, Huoqiu, Jinzhai, Feidong and Hefei, no disease-free zone has not been found yet. 1957 survey of 71 acres of peanuts, the incidence of 75.6% of the area; 1958 survey 3,445 acres of peanuts, the incidence of 94.8% of the area; 1959 survey in the suburbs of Hefei, peanut disease accounted for about 70% of peanut fields . Plant incidence is generally about 5%, up to 30%, the incidence of individual plots up to 50%. Diseases can occur in the peanut growing season, mainly in late July to early September. Plant early onset, heavy dead soon, crop failure; late infection, severe cases also cause death, light though not die, 伹 cut a large, significantly worse quality. Silkworm disease is a soil-borne disease. Pathogens in the soil can survive four to five years, although rotation is effective disease prevention, 伹 not ideal  take 诓    downtown tanning paragraph  豕?