Brown ring patch and soil moisture
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Brown ring patch, Waitea circinata var. circinata, occurred most frequently in dry areas where irrigation coverage was poor. Location of disease designated by brown dots. Areas covered by 2, 3 or 4 irrigation heads are shown in red, yellow and green, respectively. Study conducted Spring, 2008, at Torrey Pines GC, San Diego, CA, Wayne Carpenter, superintendent.
