The antifungal substance treatments significantly reduced the incidence of B. cinerea on grape berries and the time after treat- ment influenced the numbers of decayed berries (Fig. 4). The incidence of gray mold after immersion of grape berries was typ- ically 75% (surface-inoculated) or 87.3% (wound-inoculated) after 7 days storage at 15 ◦ C (Fig. 4, 2 h interval). GSE at 0.5% produced the strongest inhibitory effect with 18% gray mold incidence for berries with pedicel detached, and 9.3% for berries with pedicel intact after 7-day storage. Treatments with 1% chitosan plus 0.1% GSE also significantly reduced gray mold incidence, which was a better result than that with 1% chitosan for all inoculation intervals. The rate of gray mold inci- dence increased in all treatments with an increase in inoculation time. In the 2 h immediately after inoculation, there were signif- icant differences among treatments. However, these differences decreased with the extension of inoculation time before antifun- gal handling. The difference was not obvious among different treatments when the interval between inoculation and treat- ment was 48 h, especially for those inoculated berries without pedicels.