Field Control Effect of 30% Difenoconazole·Propicondzole EC against Rice Sheath Blight and Rice False Smut

[Objective] The aim was to popularize 30% Difenoconazole·Propicondzole EC.[Method] Field efficacy trials of 30% Difenoconazole·Propicondzole EC against rice sheath blight and rice false smut were done in Gaochun county,Jiangsu province.[Result] The results showed that rice was not significant phytotoxicity after the application of reagents.The control effect against rice sheath blight was 93.36% and 92.03% at the efficient concentration of 225 and 300 ml/hm2 respectively,no obvious difference and the control effect against rice false smut was 67.60% and 81.71%,the difference was significant.The control effect at the efficient concentration of 300 ml/hm2 increased significantly greater than 5% validamycin at the efficient concentration of 4500 ml/hm2.[Conclusion] 30% Difenoconazole·Propicondzole EC had good security,high control efficacy and popularizing demonstration.Recommended dose was 300 ml/hm2.