近年来,随着蔬菜土地利用呈高负荷连作生产,致使蔬菜次要病害上升为主要病害。豆科作物的根腐病在我区乃至湖北省呈明显流行态势。据笔者调查,病株率一般在3%～15%,严重地块病株率达到40%,且发生面 In recent years, with the high-load vegetable land use even crop production, resulting in vegetable minor diseases increased as the main disease. The root rot of leguminous crops showed obvious epidemic situation in our district and even in Hubei province. According to the author’s survey, the diseased plant rate is generally 3% to 15%, the severe block plant strain rate reached 40%, and the occurrence of surface