Brown ring patch (Waitea) strikes

With springtime's warmer temperatures and rains, cool-season greens in the southern U.S. have been under attack from brown ring patch (caused by Waitea circinata) and the related disease, brown patch (caused by Rhizoctonia spp.)

While brown patch is a familiar disease to most, brown ring patch is a relatively new disease, first characterized in the U.S. by Dr. Frank Wong of the the University of California, Riverside. Its primary targets are cool-season greens in most regions of the U.S., and…