粉尘剂是一种新的农药剂型。大棚蔬菜使用粉尘剂是把经过加工、具有一定细度的固体粉状农药,利用粉尘所特有的飘翔效应,通过器械喷洒在棚室空间,形成飘浮的药尘,均匀地飘落到蔬菜的叶片上,达到防治病虫的目的。粉尘剂与烟剂相比,具有两大优点:一是不像烟剂那样要求棚室严 Dust agent is a new type of pesticide. Greenhouse vegetable dust agent is the processed, with a certain degree of fineness of solid powder pesticides, the use of dust floating effect unique to spray through the equipment in the shed space, the formation of floating dust, evenly falling to the leaves of vegetables On the purpose of pest control. Dust agent compared with the smoke, has two major advantages: First, unlike smoking as strict requirements of the studio