Good news on perennial ryegrass and gray leaf spot
March 27, 2006
Dr. Frank Wong of the University of California, Riverside, has been conducting evaluations of gray leaf spot tolerance among perennial ryegrass varieties, and has some good news to report.
As summarized in a the August, 2003 PACE Insights, it has been known since the 1980s that perennial ryegrass is one of the most wimpy turf types when it comes to gray leaf spot. However, there are significant differences among ryegrass varieties in their ability to stave off gray leaf spot…