小麦条锈病是危害我省小麦生产最主要的病害之一，其爆发流行速度快，对产量影响大，常造成小麦大面积减产甚至绝收。据四川省农科院植保所统计，１９９９～２００２年我省条锈病已连续４年大发生，发病面积分别为１９９９年１０００万亩（１亩＝１／１５公顷，下同）、２００ Wheat stripe rust is one of the main diseases that endanger the production of wheat in our province. Its outbreak epidemic is rapid and has a great impact on the yield, which often results in a large-scale yield reduction or even absolute failure of wheat. According to the Sichuan Academy of Agricultural Sciences plant protection statistics, from 1999 to 2002, stripe rust in our province has occurred for four consecutive years, the incidence of the area were in 1999 10 million mu (1 mu = 1/15 hectare, the same below), 200