What disease is characterized by dollar-sized spots on grass?

The disease characterized by dollar-sized spots on grass is known as dollar spot. This turfgrass disease typically presents as small, round, bleached-out lesions that resemble the size of a silver dollar, leading to its common name. It is caused by the fungus Sclerotinia homoeocarpa, which thrives during warm, humid conditions and can affect various grass species.

Proper identification of dollar spot is crucial for turf management, as it helps in implementing appropriate cultural and chemical controls. Recognizing the distinct appearance of the spots allows for timely and effective treatment, preventing further spread and damage to the lawn or turf area. Understanding the symptoms of dollar spot also assists in differentiating it from other grass diseases, ensuring that the right approach is taken to maintain healthy turf.