自江苏、山东、四川、辽宁、河北及内蒙古等省(自治区)的棉花、茄子、辣根,蚕豆等18种植物上分离的大丽轮枝菌,在温室条件下,测定了对茄子、番茄幼苗的致病力分化。根据接种21天的病株率、30天的病情指数、45天的枯死株率和症状类型,大丽轮枝菌对茄子的致病力强、中、弱划分为Ⅰ、Ⅱ、Ⅲ型;在番茄上测定结果多数菌株不引起侵染,或只是较弱的致病力。 Verticillium dahliae isolated from 18 species of plants such as cotton, eggplant, horseradish and broad bean in Jiangsu, Shandong, Sichuan, Liaoning, Hebei and Inner Mongolia provinces were tested for the effects of eggplant, tomato Pathogenic differentiation of seedlings. The pathogenicity of Verticillium dahliae to eggplant was strong, medium and weak were divided into Ⅰ, Ⅱ and Ⅲ according to the diseased plants rate of 21 days inoculation, the disease index of 30 days, the rate of dead plants in 45 days and the type of symptoms. Most of the strains tested on tomato did not cause infection, or only weak virulence.