Pyridaben 20% WP is a contact-killing low-toxic acaricide. It has a very strong killing effect on the whole growth period of mites, namely eggs, larvae, nymphs and adult mites, and also has obvious quick killing effect on the mites in the mobile phase. The product has stable efficacy and is not affected by temperature changes. Whether it is used in early spring or autumn, it can achieve satisfactory results and has a long lasting effect. The product is ultra-finely treated, has high suspension rate, good adhesion, and is resistant to rain erosion, and has no cross-resistance with commonly used acaricides.