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病害是影响白术高产的主要因素。白术根腐病是最重要的病害之一,自1984年至1986年对白术病害普查表明,白术根腐病发生,一般减产45%,严重的田块出现无收。1986年在棋坪,幽居乡调查,13亩白术因发病严重,中途改种其它作物,经济损失每亩平均300元。根腐病是真菌性病害,主要为害白术地下块茎,引起地下块茎腐烂干缩,地上叶片萎蔫枯死。一经发病,大部分死亡。初次侵染来源于连作土壤和术栽带菌,重复侵染主要通过雨水的冲刷和病残体的扩散。4月上旬始发病,9月中旬停止扩展,持续发病
Disease is the main factor affecting the high yield of Atractylodes macrocephala. Atractylodes root rot is one of the most important diseases. From 1984 to 1986, the general survey of the diseases of Atractylodes macrocephala showed that the root rot of Atractylodes macrocephala was reduced by 45% in general, and the crop failure in the serious field appeared. In 1986, at the chess and seclusion townships, 13 acres of Atractylodes were severely morbid and switched to other crops midway, with an average economic loss of 300 yuan per mu. Root rot disease is a fungal disease, the main damage Atractylodes tuber, causing tubers rotting dry shrinkage, the ground leaves wilted dead. Upon onset, most died. The initial infection came from continuous cropping and planting, and the repeated infestation was mainly through the erosion of the rainwater and the spread of the disease. Initial onset in early April, mid-September to stop expanding, sustained onset