In which type of grass is Gray leaf spot most commonly found?

Gray leaf spot is primarily associated with St. Augustine grass. This fungal disease is caused by the pathogen Pyricularia grisea and commonly arises in warm, humid environments where St. Augustine grass is prevalent. The symptoms include small, round or oval spots with a grayish center and dark borders, leading to significant aesthetic issues and potential damage to the grass.

While other grass types can experience various diseases, Gray leaf spot is particularly notorious for affecting St. Augustine grass, especially during periods of high humidity and stress conditions. This specificity makes it crucial for turf management professionals to recognize and properly address Gray leaf spot when it appears in St. Augustine lawns, emphasizing the importance of species identification and targeted treatment strategies.