Tetranychus annuum (an animal with over 60 common names, including red spider mite and two-spotted mite) is a predatory mite found in dry environments, generally considered a pest.

T. urticae belongs to the arachnid family and is closely related to spiders. The most notable spider mite is the red spider mite, which can be seen in greenhouses and temperate zones spinning a fine web under leaves. The red spider mite poses a threat to host plants, especially tomato plants by laying eggs on it and sucking sap from the leaves cell by cell, which could spread viruses.

Spider mites are less than 1 mm in size and vary in colors. The red spider mite is the easiest to spot.

During the summer, T. urticae has a greenish brown appearance with two darker spots, but as winter approaches it gains a strong red color.
Its natural predator is the Chilean spider mite (Phytoseillus persimilis), commonly used as a method for its biological control. The Spider mite is called spider mite not because it is closely related to spiders as stated, but due to the fact that it spins a silken web in which it lays its eggs.

Yes, be on the lookout for these. They killed off one of my junipers before I knew what happened.

Hello,
Spider mites are members of the Acari (mite) family Tetranychidae, which includes about 1600 species. They generally live on the under sides of leaves of plants, where they may spin protective silk webs, and they can cause damage by puncturing the plant cells to feed.
Spider mites are less than 1 mm in size and vary in color. They lay small, spherical, initially transparent eggs and many species spin silk webbing to help protect the colony from predators; they get the 'spider' part of their common name from this webbing. Hot, dry conditions are often associated with population build-up of spider mites.
The best known member of the group is Tetranychus urticae. Other species which can be important pests of commercial plants include Panonychus ulmi and Panonychus citri.


Thanks.

I have 2 bonsai trees. its a new hobby i picked up and my new one has green spider mites. how do you get rid of these? and my plant is very very ill is there any chance i can save it?

spray them with insecticidal soap available at any garden center.

I get these baddies on my junipers in the summer. With larger bonsai you can actually blast them off the tree with a strong spray of water, and they will not come back if you water often and keep the moisture levels up.