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用烟雾剂防治大棚蔬菜病虫害,是通过农药气化后冷凝成烟雾颗粒或直接把农药分散成烟雾粒防治病虫害的一种新技术。实践证明,该方法具有防效高、残留量低,省工、省时、省药等优点。使用烟雾剂时须注意以下几点: 一、选好施放时间。在日光下,植株表层温度和烟雾颗粒温度相同,烟雾不易沉积,会影响药效。
The use of aerosols to control pests and diseases in greenhouse vegetables is a new technology that can be used to control pests and diseases after being condensed into aerosol particles through gasification of pesticides or directly dispersing pesticides into aerosol particles. Practice has proved that this method has the advantages of high control efficiency, low residue, labor, time, medicine and so on. When using aerosol agent should pay attention to the following points: First, choose a good cast time. In daylight, plant surface temperature and smoke particles the same temperature, smoke deposition is not easy, will affect the efficacy.