As shown in Fig. 4, the disease incidence and lesion diam- eter of inoculated citrus fruit treated with 20 j-LL of 1 × 107 ,
1 × 108 , and 1 × 109 cells mL−1 washed cell suspension of strain
SG-6 were significantly lower (P < 0.05) than those on the con-
trol, as higher concentrations of the antagonist resulted in lower disease incidence, thus depicting a strong linear relationship with concentrations of the antagonist (R2 = 0.9332) (Fig. 5). At
1 × 109 cells mL−1 , the disease incidence and lesion diameter
declined to 18.3% and 5.5 mm, respectively. Meanwhile, the treat- ment of 1 × 106 cells mL−1 washed cell suspension of strain SG-6
did not inhibit the incidence of green mold decay of citrus frui