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利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。烟雾剂颗粒微细,直径可小到1微米。在空气中呈弥散状态,弥散的烟雾颗粒多向沉积到植株表面,防效高、残留量低,且省工、省时、省药,是近年来推广应用的一项技术。使用烟雾剂必须注意以下几点:1.选好施放时间在日光照射下,植株表层温度
The use of aerosols to control pests and diseases of 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. Aerosols fine particles, the diameter can be as small as 1 micron. In the air was dispersed, diffuse smoke particles deposited to the plant surface, high anti-efficiency, low residue, and labor-saving, time-saving, provincial medicine, is a technology popularized in recent years. The use of aerosols must pay attention to the following points: 1. Choose a good cast time in sunlight, plant surface temperature