3.1. Efficacy of H.uvarum combined with different concentrations of SA (or SBC) on control of gray mold in grape fruitDisease incidence and lesion diameter in all treated fruit were significantly lower than those of the control fruit (P<0.05) (Fig. 1). H. uvarum, as a stand-alone treatment, reduced the disease incidence from 93.1% (control) to 51.8%. The combination of the chemical reagents and yeast decreased the disease incidence to a lower level,38.5% for H.uvarum combined with 2mmolL−1 SAand 34.3% for H. uvarum combined with 2% SBC, respectively. At the same concentration of H. uvarum, the lesion diameter of fruit treated by 2mmolL−1 SA was significantly (P<0.05) lower than in those treated by 1mmolL−1 SA and 4mmolL−1 SA (Fig. 1) after 3 days of incubation. The lesion diameter in fruit treated
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