甘薯紫纹羽病(Helicobasidium mompa Tanaka),俗称红筋网、红络烂,是一种寄主范围很广的土传真菌性病害。据有关文献记载,病菌在土壤中可存活4年。据我们1973年至1984年的分期挖根考察,该病在我县于6～7月份初发,8月份蔓延,9月上中旬渐趋严重,薯块开始腐烂,10月底全部烂光。 Sweet potato purple pattern feather disease (Helicobasidium mompa Tanaka), commonly known as the red tendon net, red net rotten, is a host of a wide range of soil borne fungal diseases. According to the literature, the bacteria can survive in the soil for 4 years. According to our 1973 to 1984 staging rooted investigation, the disease in my county in June to July first issue, spread in August, September and mid-September is becoming more serious, tubers began to decay, all by the end of October.