以黄瓜白粉病菌为靶标菌,采用活体盆栽及台盼蓝染色的方法,测定了新杀菌剂唑胺菌酯对该病原菌不同发育阶段的影响。试验结果表明:唑胺菌酯对黄瓜白粉病菌的孢子萌发具有显著的抑制作用,抑制程度与质量浓度呈正相关;同时也抑制菌丝正常生长及分生孢子梗和分生孢子的形成。说明唑胺菌酯在黄瓜白粉病菌的整个生活史中都起作用,从而表现优异的防治效果。 The cucumber powdery mildew was used as target bacteria, and the effect of the new bactericide azadirachtin on the different developmental stages of the pathogen was determined by in vivo pot and trypan blue staining. The results showed that azoxystrobin had a significant inhibitory effect on the spore germination of cucumber powdery mildew, and the degree of inhibition was positively correlated with the mass concentration. At the same time, it also inhibited the normal growth of mycelium and the formation of conidiophores and conidia. Description azadirachtin in Cucumber powdery mildew in the entire life history of play a role, which showed excellent control effect.