徽县位于北秦岭以南陇南山区,是小麦条锈病常发、早发、易变区,锈菌生理小种变异频繁,很多良种在我县种植几年就丧失抗锈性,常使抗锈良种不能满足生产需要。1982年我县首次用西德进口的2.5%可湿性“粉锈宁”(拜尼莫6447)防锈示范1万亩,取得了很好的效果,但因药源紧缺,而且成本也较高,1983年采用粉锈宁与氟硅脲混合施用,亩施粉锈宁纯药4.2克和氟硅脲(37%晶粉)62.5克,混合一次叶面喷施,一般防效达93%左右,保产效果平均为20.7%。1984年我们在此基础上进 Huixian County is located in Longnan mountainous area south of the North Qinling Mountains. It is a frequent occurrence of stripe rust in wheat. Early-onset and volatile areas have many frequent variations in physiological races. Many elite species lose their anti-rust properties after planting in our county for several years, Varieties can not meet production needs. In 1982, the county first imported 10.5% of wettable “Trimethoprim” (Bennimo 6447) rustproof demonstration of 1 million mu in West Germany, and achieved good results. However, due to the lack of medicine sources and the high cost, 1983 In the year, the mixture of triadimefon and flufenoside was applied. 4.2 grams of pure rusting pure mufen and 62.5 grams of flufenoside (37% crystalline powder) were mixed with foliar spraying. The general control effect was about 93%, and the average yield was 20.7%. In 1984, we entered on this basis