The antifungal activity of ethanolic extract and fractions were determined from shaddock peels. The aim was to develop and utilize comprehensively agricultural substances of shaddock peels. Using growth rate methods, antifungal activity of shaddock peels was researched in this experiment. The results showed that the shaddock peels ethanolic extract was more effective against Valsa mali,Colletotrichum capsici and Gibberella zeae. The inhibition rates were 80. 7% ,72. 9% ,59. 8% at 5. 0mg/ml,respectively. The...