Dollar Spot (Sclerotinia homoecarpa) is a common summer disease found on many turf species but is most common on Bermudagrass. This disease is found more prevalent on neglected turf or areas that are under moisture or nutritional stress caused by the lack of nitrogen. Warm humid weather with heavy dew promotes the disease, which begins as small (2-3 inch) circular dead spots throughout the turf. These small spots can then grow together to form much larger blighted turf. Fungicides are effective in controlling dollar spot but a good Nature Safe fertilization and watering program will also help manage this turf disease.
Dr. Wayne Wells is an Extension Professor and Turfgrass Specialist. His mailing address is Department of Plant and Soil Sciences, Mail Stop 9555, Mississippi State, MS 39762. wwells@ext.msstate.edu