The gray leaf spot season has now begun
July 4, 2005
In last week's PACE Update, we warned that gray leaf spot might be coming to areas where the 68 F threat temperature had been reached. The threat temperature around the Southern California area had just attained that target. This week, Dr. Frank Wong, University of Califorinia, Riverside confirmed the first West Coast citing of gray leaf spot attacking kikuyugrass. In Florida, Dr. Henry Wetzel, Syngenta Crop Protection, observed gray leaf spot attacking St. Augustinegrass the week of June 5th. Wetzel…