雾是秋冬常见的一种天气现象。当低层大气中的水汽达到饱和状态时,水汽凝结物悬浮在空中就会形成雾茫茫的天气;阴雾弥漫的天气往往伴随着低温、高湿、寡照,对大棚蔬菜的生长极为不利,且容易诱发各种病虫害,必须切实加强管理。 Fog is a common weather phenomenon in autumn and winter. When the water vapor in the lower atmosphere reaches saturation, the water vapor condensate suspended in the air will form a foggy weather; diffuse cloudy weather is often accompanied by low temperature, high humidity, low according to the growth of greenhouse vegetables is extremely unfavorable and easy Induced a variety of pests and diseases, we must effectively strengthen management.