在酒泉地区,洋葱紫斑病常与霜霉病相伴而生,造成复合侵染,从而加重洋葱的受害程度。为明确防治霜霉病药剂对紫斑病的药效,1990年10月作者以紫斑病菌为对象,对14种杀菌剂,分别进行了菌落生长量,孢了萌发牢和药防后恢复力三项指标的测定试验。对供试药剂效果及防治洋葱病害的应用价值作出了评价。 In the Jiuquan area, onion purple spot disease often accompanied by downy mildew, resulting in complex infection, thereby increasing the degree of onion damage. In order to clarify the efficacy of downy mildew agents against purpura, in October 1990, the author of Purpura densiflorum against 14 kinds of fungicides, respectively, colony growth, spore germination and drug recovery resilience three Measurement of indicators test. Evaluation of the effect of the test agent and the application value of onion disease prevention and control were made.