近几年来，厚皮甜瓜在我县的栽培面积逐年扩大，栽培方式也多种多样，有春季提早大中棚栽培的，有春季地膜覆盖栽培的，有夏秋露地栽培的，也有秋延后大棚栽培的，有爬地多蔓栽培的，也有吊单蔓栽培的。但是，不论哪种栽培方式，霜霉病的发生和为害均较严重，尤以露地夏秋季栽? In recent years, the cultivation of muskmelon in my county, the area has expanded each year, the cultivation methods are also varied, spring and early middle and large shed cultivation, the spring mulching cultivation, there are summer open field cultivation, but also autumn after the greenhouse Cultivated, there are more creeping cultivated, there are hanging single vine cultivation. However, no matter what kind of cultivation methods, downy mildew incidence and damage are more serious, especially in summer and autumn planted planted?