蚕豆茎疫病，俗称”黑瞒案”病，又有‘三瘟”、“火烧塘”之称。尽管各地称呼不一，但都属于细菌引起的间歇性病害。各年度发生和危害的程度不尽相同e据近几年的调查，出现该病的主要地区有昆明、大理、楚雄、曲靖等地，发病面积逐年扩大，流行频率不断增快，重病田块基本卜颗 Broad bean stalk disease, commonly known as “black case” disease, there are “three plagues”, “Fire pond.” Although the different addresses, but all belong to intermittent diseases caused by bacteria. The annual occurrence and extent of harm does not Do the same e According to the survey in recent years, the main areas of the disease are Kunming, Dali, Chuxiong, Qujing and other places, the disease area expanded year by year, the epidemic rate continues to increase,