黄瓜枯萎病又叫萎蔫病，蔓割病，是大棚（室）黄瓜生产上发生最普遍，为害最严重的病害之一。据调查：冀东棚（室）黄瓜产地的乐亭县，一般年份发病率2～3％，严重地块30％左右，个别地块甚致绝收、已成为黄瓜高产稳产的重要障碍。棚（室）黄瓜从幼苗到成株均可染病，而以结瓜? Cucumber wilt, also known as wilt disease, vine cut disease, is greenhouse (room) cucumber production occurs most commonly, one of the most damaging diseases. According to the survey, in Laoting County where greenhouse cucumber is produced in Jidong, the incidence of cucumber is 2-3% in the general year and about 30% of the serious area. It is an important obstacle for the high and stable yield of cucumber. Shed (room) cucumber from seedlings to adult can be infected, and to knot?