the fruits treated with 50, 100 or 200 mg/ml NE and P. expansum was 74.2, 67.2 or 63.1%, respectively, less than that on the control fruits after the inoculation for 96 h (Figure 4). Whatever pathogens were inoculated, the ID on the fruits treated with 200 mg/ml NE was significantly (P < 0.05) less than that on the control fruit in our experiment (Figures 3 and 4).