平凉市地处小麦条锈病西北流行区系的关键地带,属泾河流域常发区和陇东高原偶发区,在我国西北和华北小麦条锈病流行区系之间起桥梁作用,是我国小麦条锈病病菌的主要越夏和越冬基地[1、2]。研究表明,小麦条锈病病菌在平凉地区海拔1400 m以上区域的晚熟冬、春麦和自生麦苗上越夏, Pingliang City is located in the critical zone of the northwestern epidemic of wheat stripe rust, belonging to the regular run-off area of ​​Jinghe River Basin and the sporadic area of ​​Longdong Plateau. It plays a bridge role between the wheat stripe rust endemic areas in Northwest China and North China. The main summer and winter overwintering bases of rust pathogens [1,2]. The results showed that wheat stripe rust pathogen in the Pingliang area above 1400 m late maturing winter, spring wheat and self-born wheat seedling summer,