中文摘要：

以＂新泰密刺＂黄瓜为试材,从新疆各地采集黄瓜根际土壤和黄瓜叶片进行菌株分离,采用温室药效和田间药效试验筛选黄瓜白粉病生防菌;并以红枣黑斑病菌、辣椒疫霉病菌、棉花枯萎病菌为靶标,通过皿内对峙试验测定生防菌的广谱性。结果表明：共有5株微生物对黄瓜白粉病的田间防效高于50%,这5株微生物中有3株具有一定的杀菌广谱性,其中A-13和C-1的效果最好。

英文摘要：

Taking ‘Xintaimici’ cucumber as material, the strains were separated from vegetable rhizosphere soil and cucumber leaves collecting areas around Xinjiang, and the bio-control agents on cucumber powdery mildew were screened by the method of control effect test in greenhouse and field. The confront culture of bio-control agents and pathogenic fungi was determined by the broad spectrum of bio-control agents. The results showed that a total of 5 strains that control effect on cucumber powdery mildew in field were more than 50%, only 3 strains had certain fungicide broad- spectrum of the 5 strains,among them A-13 and C-1 had the best effect.