TY - JOUR AU - Hanna, Rachid AU - Zalom, Frank G. AU - Wilson, Lloyd T. AU - Leavitt, George M. TI - Sulfur can suppress mite predators in vineyards JF - California Agriculture JO - Calif Agr Y1 - 1997/01/01 VL - 51 IS - 1 SP - 19 EP - 21 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://dx.doi.org/10.3733/ca.v051n01p19 L3 - 10.3733/ca.v051n01p19 AB - The Pacific spider mite and the Willamette spider mite are the most common mite pests on grapevines. A single-season study of a vineyard near Madera showed that regular sulfur applications for powdery mildew control can exacerbate spider mite problems in vineyards by suppressing populations of predatory thrips and predatory mites.