In addition to biological control, plant -derived pest control products are also used against insect and mites species in different agricultural production systems. Among them, the biocide effects of olive mill wastewater (OMWW) is known to work against some plant pathogenic fungus, bacteria and weed species. However, the acaricide effect of OMWW against spider mites has not been investigated. Therefore, in this study, insights into the acaricidal effects of OMWW against T. cinnabarinus is aimred sought, with the use of slide dip, dry film and direct spray method withn thea comparison of registered acaride abamectin and control.