Spider mites and other mites
January 1, 1970
are common crop pests. The two-spotted spider mite , Tetranychus urticae , is by far the most important species in greenhouses and many outdoor crops. Spider [...] growth. As damage increases whole leaves turn yellow, and as more cell sap is removed, the leaf, and eventually the whole plant may die. The nymphs and [...] webbing and spotting on the leaves affect the appearance of the crop. This is of particular concern in ornamental crops. Life cycle of spider mites Spider