茭白叶枯病俗称胡麻斑(Bipolaris zizaniae=Helminthosporium zizaniae),是茭白上的主要病害之一.一般年份病叶率60—80%,严重者达100%,影响产量1—2成。迄今为止,有关该病菌的生物学特性研究尚未见有报道。作者在1986—1989年间,进行了初步研究,为病害的防治研究提供依据。(一) 病菌来源:自本院茭白叶新鲜病组织上,用单胞分离法获得纯培养的菌种。 Blight commonly known as blight (Bipolaris zizaniae = Helminthosporium zizaniae), is one of the main diseases on the scallop, the general year sick leaves rate 60-80%, severe 100%, affecting the yield 1-2%. Up to now, there are no reports on the biological characteristics of this bacterium. The author conducted a preliminary study from 1986 to 1989, which provided the basis for the research on disease prevention and control. (A) source of bacteria: from our hospital fresh white leaf disease tissue, obtained by cell isolation pure culture strains.