荞麦的病害主要有立枯病、荞麦轮纹病、荞麦褐斑病、荞麦霜霉病、荞麦病毒病和白霉病等,其病害症状与防治方法如下。一、立枯病荞麦立枯病俗称腰折病,是养麦苗期主要病害。一般在间苗后半月左右发生,有时也在种子萌发出土时就发病,常造成烂种、烂芽、缺苗断垄。受害的种芽变黄褐色腐烂。养麦幼苗容易感染此病,病苗茎基部出现赤褐色病斑,逐渐扩大凹陷,严重时扩展到茎的四周,幼苗萎蔫枯死。子叶受害后出现不规则的黄褐色病斑,而后病部破裂脱落穿孔,边 Diseases of buckwheat mainly include blight, buckwheat ring disease, buckwheat brown spot, buckwheat downy mildew, buckwheat virus disease and white mold disease, the disease symptoms and prevention methods are as follows. First, the dead blight buckthorn buckle commonly known as fold disease, is the main disease of wheat seedling. Generally occurs after the seedlings about half a month, and sometimes the germination of the seed germination disease, often resulting in rotten seeds, rotten buds, missing seedlings off ridge. The affected seed becomes rotten brown rot. Wheat seedlings susceptible to the disease, the emergence of the disease base of auburn brown spots, and gradually expand the depression, in severe cases extended to the stem around the seedlings wilted dead. Occur after the cotyledon irregular yellowish brown lesions, and then the Ministry of disease broken perforation, edge