Spider mites

Spider mites are arachnids, a group including spiders, ticks, and scorpions. The family of spider mites, Tetranychidae, is large with more than 1,200 species. Commonly observed spider mite species include spruce spider mites (Oligonychus ununguis), boxwood spider mites (Eurytetranychus buxi) and two-spotted spider mites (Tetranychus urticae). These species are pests in the landscape and can cause considerable damage to host plants.