大豆菌核病又称白腐病,作为20世纪80年代中后期增长的新病害,其发展速度和危害程度超出了一般性病害,并且迅速成为世界性的大豆病害。在我国各大豆产区也均有发生,以黑龙江和内蒙古地区发病最为严重,发病率可达到60%~100%,造成减产甚至绝产,一旦发病,药剂防治效果甚微。发病原因: Soybean sclerotinis, also known as white rot, as a new disease of growth in the late 1980s, has outgrown its general speed and rate of harm and has rapidly become a worldwide soybean disease. In our soybean production areas have also occurred in Heilongjiang and Inner Mongolia, the most serious incidence, the incidence rate can reach 60% to 100%, resulting in reduced or even absolutely dead, once the disease, the effect of pesticide control is minimal. Causes: