西洋参是名贵滋补强壮中药。但裁培中多种原因可使存苗率降低,因病害发生死苗烂根最为常见,损失可达20～100%。为使西洋参栽培获得成功,本文对西洋参致病菌进行分离鉴定。 材料与方法 取一、二年生西洋参病株根,茎,叶的发病部位,自来水冲冼后升汞消毒,无菌水洗,接种于PDA American ginseng is a valuable and nourishing strong Chinese medicine. However, in crop cultivation, the seedling rate is reduced due to various reasons, and the most common cause of dying of dead seedlings due to diseases is loss, which can reach 20-100%. In order to make the success of American ginseng cultivation, the pathogens of American ginseng were isolated and identified. Materials and Methods The roots, stems and leaves of American ginseng roots were used for the first year and the second year of life. The tap water was washed and sterilized with mercury, then washed with sterile water and inoculated on PDA.