西瓜萎蔫病(蔓割病、枯萎病)是发病普遍、危害严重的病害之一。特别是西瓜栽培老区,受轮作周期、作物种类等条件的影响,发病尤其严重。本病主要由土壤传染。日本自本世纪二十年代即利用抗萎蔫病的瓜类作砧木进行嫁接栽培预防本病,现已普遍应用于生产。同时利用砧木耐低温、耐移 Watermelon wilt disease (vine cutose, blight) is a common disease, one of the serious damage. Especially the old watermelon cultivation area, affected by the rotation cycle, crop types and other conditions, the incidence is particularly serious. The disease is mainly caused by soil infection. Japan since the 20th century that the use of anti-wilt disease melon as a rootstock for grafting cultivation prevention of the disease, is now widely used in production. At the same time the use of rootstock low temperature, tolerance shift