几种药剂防治小麦纹枯病的试验研究

Study on Control of Wheat Sheath Blight by Several Chemicals

[目的]筛选防治小麦纹枯病的有效药剂。[方法]采用田间药效试验方法测定了4种药剂在推荐剂量下对小麦纹枯病的防治效果。[结果]4种药剂对小麦纹枯病均具有不同程度的防治效果,其中以240 g/L噻呋酰胺悬浮剂防效最佳,达90.71%;25%苯甲·丙环唑水乳剂防效次之,为83.40%。[结论]4种药剂在推荐剂量下使用,对小麦安全,可用于生产上防治小麦纹枯病。

[Objective]The aim of this study was to screen effective chemicals to control wheat sheath blight.[Method]Field efficacy test was used to determine the control effect of four chemicals on wheat sheath blight at recommended dosage.[Result]Four kinds of chemicals had different control effects on wheat sheath blight. 240 g/L thiofluramide suspension had the best control effect,and the control effect was 90.71%. The control effect of 25% difenoconazole·propiconazole water emulsion was the second,and the control effect was 83.40%.[Conclusion]Four kinds of chemicals were safe to wheat and could be used to control wheat sheath blight in production.