The best friend on earth of man is the tree: when we use the tree respectfully and economically we have one of the greatest resources of the earth.
After a mild winter and a relatively dry summer, we are experiencing greater pest outbreaks in the Jackson Hole area and throughout the Intermountain West. One of the pests that we are seeing almost daily in Jackson Hole landscapes is the spider mite.
Spider mites are tiny 8 legged animals closely related to spiders. Several kinds are important pests of ornamental trees, shrubs and bedding plants. Under favorable conditions spider mites can build up rapidly and seriously threaten plant health.
Spider mites feed on plant leaves by piercing leaf tissues and sucking the green liquid that oozes out. Leaves appear bronzed after the green color is lost from many tiny feeding spots. Heavily infested leaves and branches can become covered with an almost invisible webbing.