本文采用11种中草药的挥发油,对4种西洋参致病菌进行了抑菌试验,结果表明在一定浓度下,一些挥发油对西洋参猝倒病菌,立枯病菌,根腐病菌和炭疽病菌均有抑制作用。中草药在中医中药上的作用是人所共知的,在防治植物病虫害方面,用于防治植物虫害的已有先例,如除虫菊脂,烟碱,鱼藤酮等,但用于防治植物致病真菌的报道较 In this paper, 11 kinds of Chinese herbal medicine volatile oil, the four kinds of American ginseng pathogenic bacteria were tested for antibacterial activity, the results showed that some of the volatile oil at the certain concentrations of American ginseng damping-off bacteria, Rhizoctonia solani, root rot bacteria and anthrax bacteria were inhibited . Chinese herbal medicine in the role of traditional Chinese medicine is well known in the prevention and treatment of plant diseases and insect pests, for the prevention and control of plant pests have precedent, such as pyrethrum, nicotine, rotenone and so on, but for the control of plant pathogenic fungi More