Gray leaf spot
Updated June 15, 2022
IPM Reference on gray leaf spot (24 KB pdf). Useful knowledge includes the disease life cycle, predictive models, monitoring techniques and biological, cultural and chemical management strategies. Listings of pesticide products identify those considered to be the safest by the Environmental Protection Agency, via their designation as "reduced risk" or through their labeling with a "CAUTION" warning label.
Gray leaf spot is one of the most devastating diseases on the golf course, taking out large swaths of ryegrass, fescue, St.…