日光温室一年四季接连 生产，室内温度高、湿度 大，为病虫害的繁殖创造了条 件；土壤及残枝落叶成了许多病虫传播媒介和越冬的场所， 加快了病虫的繁殖和侵染循环。 土壤中病原菌密度大，很容易使秧苗或植株发生土传病害，常常会带来比露地更为严重的损失。所以日光温室使用年 Sunlight greenhouse produce continuously year after year, indoor temperature is high, humidity, creating conditions for the reproduction of pests; soil and stump leaves has become a place for many pest vectors and wintering, to speed up the breeding of insect pests and infection cycle . Density of pathogenic bacteria in the soil, it is easy to seedling or plant soil-borne diseases, often bring more serious losses than the open field. So the use of solar greenhouse years