桃褐腐病是危害桃子影响产量和产品质量的主要病害。据1990～1992连续3年对我场桃树病害的调查结果表明，由于桃褐腐病引起的烂果，轻则每株树在15％以上，重则不少于30％。一、症状此病危害桃枝条、叶片、花、果实，尤以果实受害最为明显。据观察，花器受害后，初生褐色病斑， Peach brown rot is a major disease that jeopardizes peach’s impact on yield and product quality. According to the survey of peach tree disease in our country for three consecutive years from 1990 to 1992, it shows that each tree is more than 15% and not less than 30% due to rotten fruit caused by peach rot. First, the symptoms of the disease endanger peach branches, leaves, flowers, fruits, especially in the most affected victims. It is observed that after flower victims, newborn brown spots,