TY - JOUR AU - Perring, Thomas M. AU - Farrar, Charles A. AU - Blua, Matthew TI - Proximity to citrus influences Pierce's disease in Temecula Valley vineyards JF - California Agriculture JO - Calif Agr Y1 - 2001/07/01 VL - 55 IS - 4 SP - 13 EP - 18 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://dx.doi.org/10.3733/ca.v055n04p13 L3 - 10.3733/ca.v055n04p13 AB - Pierce's disease has caused extensive losses to grapes in the Temecula Valley. The primary vector of Pierce's disease in the region is the glassy-winged sharpshooter (GWSS), which has been found in large numbers in citrus trees. We examined the role of citrus in the Temecula Valley Pierce's disease epidemic and found that citrus groves have influenced the incidence and severity of Pierce's disease in grapes. Because GWSS inhabit citrus in large numbers, California grape growers should take additional care with vineyards located near citrus groves.