Spider Mite Control: The Essential Guide
damage to the host plant by feeding on plant tissue and plant sap, primarily on the underside of leaves where they pierce the cells and suck out the contents [...] and as the chlorophyll is removed, the leaf, and eventually the whole plant, may die. Nymphs and adults of spider mites produce webbing in which the mites [...] without the use of chemical pesticides. In 1967, Koppert released the first predatory mite, Phytoseiulus persimilis , for the control of spider mites on cucumber