Mites are common pests belonging to the spider family. The tiny pests attack the leaf of a marijuana plant resulting in yellowing, stippling and weakening of the plants. Mites inhabit the underside of the leaf and suck out the life-giving sap of the plants. The leaves of these plants will be characterized with suck-hole marks and yellow patches from failure to produce chlorophyll. A mite infestation can result in disastrous results hence an early detection is key.