进入初冬时节,菜农纷纷给温室番茄加设了草苫等进行保温。温室外夜间温度往往只有5℃左右。但是在温室里,晴好天气温度仍然能达到33℃以上。在这样温差大,特别是阴霾天气里,人们为了保生长促发育,往往只注重保暖,却忽略了这样的环境条件易诱发多种病害,发病最重的有灰霉病和晚疫病。 Into the beginning of winter season, farmers have to set up a greenhouse tomato grass and other insulation. The temperature outside the greenhouse at night is often only about 5 ℃. But in the greenhouse, sunny weather is still able to reach temperatures above 33 ℃. In such a large temperature difference, especially in haze weather, people in order to maintain growth and development, often only focus on warm, but ignored such environmental conditions easy to induce a variety of diseases, the most serious diseases are gray mold and late blight.