Preliminary Study on Field Efficacy of Different Medicament to Sheath Blight and False Smut of Rice

[Objective] Optimum scheme of controlling sheath blight and false smut of rice was studied.[Method] Control effect of sheath blight and false smut by eight different treatments,namely 100 ml/hm2 20% validamycin wettable powder(control group),30% difenconazole EC 15 ml/hm2,20% wenquning water agrent 200 ml/hm2,thifluzamide0.24 g/ml suspension concentrate 15 ml /hm2,18% daoqujing wettable powder 35 g/hm2,25% prochloraz EC 50 ml/hm2,15%xiugu wettable powder 40 g/hm2,jiarun 0.3 g/ml EC 15 ml/hm2,blank control,were determined.[Result] The best control effect of sheath blight and false smut of rice was difenconazole 15 ml/hm2,followly xiugu 40 g/hm2 and jiarun 15 ml/hm2.[Conclusion] Comprehensive consideration suggested that jiarun 15 ml/hm2、15% xiugu can effectively control sheath blight and false smut of rice,and commodity features of rice was improved,can substictute difenconazole.