Botrytis cinerea is one of the most important postharvest diseases resulting in economic loss on peach. Infection by B. cinerea, so-called gray mold disease, is initiated at flower stage, latent during fruit stage, and eventually occurs during retail stage (Elad et al., 2004). Fungicides are widely used to control pathogens at pre and post-harvest stage, especially benzimidazoles and dicarboximides. However, pathogens have developed its resistance to these. In recent years, consumers are concerned about environmental pollution and human health risks. Alternative methods for control of postharvest diseases such as biological and cultural method. Jasmonic acid (JA) derivative and methyl jasmonate (MeJA) has been reported to be effective to enhance disease resistance in peach infected with