This session will be an overview of turfgrass diseases in the upper Midwest. The focus will primarily be on cool-season lawns. Aboveground Diseases: Some are relatively easily to identify based on the host and the symptoms we see, from spots to patches. Belowground Diseases: Others tend to be more chronic and perennial and are difficult to identify because they are belowground, from fungal root rots to plant parasitic nematodes. Attendees will learn what to look for and then what they can do, from cultural practices to chemicals.