厚皮甜瓜 ,俗称“洋香瓜” ,因其味道甜美、营养丰富而深受人们喜爱。近几年在潍坊市保护地栽培面积逐年扩大 ,目前已达近 6666ｈｍ2 。但由于连年种植 ,造成重茬面积越来越大 ,又加上棚内高温、高湿 ,导致白粉病、霜霉病等病害的发生日趋严重。一般田减产2 0 %～ 3 0 %,严重者 Muskmelon, commonly known as “melon”, because of its sweet taste, rich nutrition and loved by the people. In recent years, the area of ​​cultivated area in Weifang has been expanding year by year, and now it has reached 6666hm2. However, due to continuous planting, resulting in an area of ​​more and more stubble, plus the greenhouse temperature, humidity, leading to powdery mildew, downy mildew and other diseases increasingly serious. General field cut 20% ~ 30%, serious