Turf affected: Bluegrass, Ryegrass, and Tall Fescue
Symptoms: Small yellow specks on leaves and stems develop into orange or red pustules. Heavily infected lawns may have an orange or reddish hue, and the lawn may begin to thin out. This “rust” will be visible on shoes and mowers after being on the lawn.
Disease occurrence: April to early June and October to early November
Management: Rust develops during times of drought and lack of fertility. Ensure proper fertilization, disease typically occurs due to lack of nitrogen. Collect and dispose of grass clippings when disease is present and water deeply and less frequently in the early morning.