几种杀菌剂对小麦条锈病田间防治效果研究

Study on the Control Effect of Several Fungicides Against Wheat Stripe Rust

小麦条锈病(Puccinia striiformis West.f.sp.tritici Eriks et Henn)是小麦生产上的重要病害,该病在赫章县发生面积大,流行速度快,常给小麦生产造成重大损失。目前,除了选育抗病品种、开展小麦秋播拌种、处理发病中心外,化学防治仍然是减轻小麦条锈病发生程度的有效措施。本试验引进几种杀菌剂进行药效对比试验,结果表明戊唑·百菌清75%可湿性粉剂、三唑酮15%可湿性粉剂对小麦条锈病防治效果达80%以上,增产幅度40%以上,生产中可以推广应用。

Wheat stripe rust(Puccinia striiformis West.f.sp.tritici Eriks et Henn) is a major disease on wheat,which occurres at large scale in Hezhang county and spreads fast,and often causes great losses to wheat production.At present,in addition to breeding disease resistant varieties of wheat sowing,seed dressing and preventing it from breaking out,chemical control is still one of the effective measures to reduce the degree of occurrence of wheat stripe rust.This study introduced several fungicides to conduct efficacy contrast tests,and the results showed that the wheat stripe rust prevention effect of two products,Tebuconazole·Chlorothalonil 75% WP and Triadimefon 15% WP,could be increased to more than 80% and the wheat output increased by 40%.The two products are worth promoting to be applied in production.