水稻白叶枯病是病原菌Xanthomonusoryzae从水稻叶片的伤口和水孔等自然孔口侵入,在导管内繁殖而引起的病害,是仅次于稻瘟病、纹枯病的水稻三大病害之一。感染此病的植株,严重时全叶片变白枯萎,通称为白叶枯病;此外,在移植本田1—3周后,水稻整株急剧地凋萎枯死的称为凋萎型白叶枯病(Kresek)。在东南亚地区常有凋萎型白叶枯病的大发生,这是热带稻作区危害性最大的病害之一。 Rice bacterial leaf blight is one of the three major diseases of rice caused by rice blast and sheath blight after Xanthomonasoryzae invades through natural orifices such as wounds and water holes in rice leaves and propagates in the duct. Plants infected with the disease, in severe cases withered white leaves withered, commonly known as bacterial blight; In addition, 1-3 weeks after the transplant Honda, the whole plant withered withered withered dead withered blight (Kresek). It is one of the most harmful diseases in the tropical rice crop area that the wilt leaf blight often occurs in Southeast Asia.