Tall fescue is routinely recommended for lawn and landscape turf in the mid-Atlantic and Northeast regions due to its heat and drought tolerance, insect and disease resistance, and need for less fertilizer and irrigation than other cool-season turfgrass species. Every silver lining has a touch of gray, however, and tall fescue has a disease Achilles heel that was exposed during the hot, wet summer of 2020. This 60-minute lecture covers the three key diseases of tall fescue in a lawn care setting. Proper identification and control, including all cultural, chemical, and biological options within the context of proper Integrated Pest Management practice, will be discussed.