An acaricide includes a surfactant and a penetrant. The acaricide has good, quick-acting effects, long effective period, safe and environment friendly, good stability, and a wide range of applications. The acaricide is not only capable of being used for exterminating agricultural and forest mites, but is also capable of being used for exterminating medical and animal husbandry mites. The acaricide has few to none drug residues and has good stability in acaricidal effect. Moreover, the acaricide is convenient to use, and may be used either alone or added directly into other insecticides.
