Antifungal Activity of Sophora flavescens extracts against Capsicum Blight(Fusarium oxysporum)

[Objective]The paper was to explore the antifungal activity of Sophora flavescens extracts against capsicum blight.[Method]Growth rate method and suspend-drop method were used to measure different solvents and concentrations of S.flavescens extracts against capsicum blight.[Result]The inhibition rate of crude extracts of S.flavescens extracted from ethyl acetate and acetone was significantly higher than ethanol.With the increasing concentration of ethyl acetate crude extracts of S.flavescens,its inhibition effect against mycelial growth and spore germination of Fusarium oxysporum significantly increased.When the mass concentration was 40 g/L,its inhibition rates against mycelial growth and spore germination of capsicum blight were 94.48% and 89.01%,respectively.[Conclusion]The active substance contained in S.flavescens roots had strong inhibition activity against capsicum blight,which had the potential value for further research and development.