黄瓜疫病福州菜农称“瓜疫”,是黄瓜的一种主要病害.茎和叶柄被害时,初为湿润状病斑,病部缢缩,茎叶萎蔫,全株枯死.叶片病斑近圆形,初呈暗绿色水渍状,后期转为青白色,晴天病叶易脆碎,雨天则湿润腐烂.瓜染病缢缩呈暗绿色软腐,表面长有白色霉状物.黄瓜疫 Cucumber blight Fuzhou vegetable farmers called “melon disease”, is a major disease cucumber. Stem and petiole victims, the early wet plaque disease shrinking, wilting stems and leaves, the whole plant died. , The beginning of the dark green water-like stains, the late turn to blue-white, sunny disease leaves are fragile, rainy wet rotten cucumber disease shrinking dark green soft rot, the surface has white moldy.