据调查,疫霉病在新疆喀什地区甜瓜主产区每年均有不同程度的发生,并有加重趋势。疫霉病主要危害植株茎基部,造成叶片萎蔫甚至死亡,严重发生年份发病率达100%,损失达80%～100%,造成甜瓜品质及产量大幅度下降。1症状表现疫霉病在喀什地区多于6～7月开始发生,以成株期受害最重。发 According to the survey, Phytophthora in Xinjiang Kashgar melon main producing areas each year have varying degrees of occurrence, and increase the trend. Phytophthora infestans mainly endanger the stem base of the plant, resulting in wilting and even death of the leaves. The annual incidence rate of serious occurrence is up to 100% and the loss is up to 80% -100%, resulting in a significant drop in the quality and yield of melon. 1 Symptoms Phytophthora infestans occurred more frequently in Kashgar from June to July and hardest in adult stage. hair