冬季多连阴雨雪、大雾天气。大棚内湿度大,有利于病害的发生,采用传统的喷雾法防治会增加棚室湿度。大棚蔬菜防病有三法:隐蔽施药法把杀虫剂、杀菌剂加入到种衣剂中,或加工制成片剂或颗粒剂等施入棚室土壤中,让作物通过根系吸收药物,并传导植株组织的各个部位,对杀灭蚜、螨、蚧、螟以及地下害虫均有良好效果。烟雾施药法以防病农药为主要成分制成的烟雾剂,点燃后能将农药以 More rainy winter snow, foggy weather. Large humidity in the greenhouse, is conducive to the occurrence of diseases, the use of traditional spray method will increase the greenhouse humidity control. Greenhouse vegetable disease prevention has three methods: hidden application method insecticides, fungicides added to the seed coating agent, or processed into tablets or granules and so on into the shed soil, so that crops through the root absorption of drugs, and All parts of the plant tissue conduction, to kill aphids, mites, scales, borers and underground pests have good results. Smoke application method to prevent disease pesticides as the main component of the aerosol agent, ignited to pesticides to