TY - JOUR AU - Yarwood, C. E. TI - Dry weather fungi: Powdery mildews abundant in California where they thrive in the dry summer climate JF - California Agriculture JO - Calif Agr Y1 - 1950/10/01 VL - 4 IS - 10 SP - 7 EP - 12 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v004n10p7 AB - Powdery mildews—Erysiphaceae— have been found in California, on 176 plant host species.