These arachnids have four pairs of legs, no antennae and a single, oval body region.
Most spider mites have the ability to produce a fine silk webbing.
Many species of spider mites can be found in Alaska landscapes and greenhouses. The twospotted spider mite, Tetranychus urticae, and the red spider mite, Oligonychus ununguis , are the most common pests. Spider mites have tiny mouthparts modified for piercing individual plant cells and removing the contents. This results in tiny yellow or white speckles. When many of these feeding spots occur near each other, the foliage takes on a yellow or bronzed cast.