蚕豆叶枯病俗称“矮缩病”、“火烧枝”等,在我省早有发生,近年来发病面积扩大,危害加重。全省每年发病面积约40～50万亩,损失蚕豆不少于五千万斤。这种病主要以地上部分的叶片和茎杆表现症状,首先是叶片枯死,然后蔓延至茎杆,最后整枝枯死。植株发病顺序则先是主 Broad bean leaf blight commonly known as “dwarf disease”, “fire burning sticks”, etc., have occurred in our province as early as in recent years, the incidence of expanding the area, increasing the risk. The province’s annual incidence of about 40 to 500,000 mu area, not less than 50 million pounds of broken beans. The disease manifests itself mainly on the leaves and stems of the aboveground parts. The first is the withered leaves, which then spread to the stems and finally the entire branches are dead. The order of the first plant is the main disease