It is usually observed in spring and fall during cool humid periods and most often found in shaded areas where air circulation is poor. Heavy fertilization favors this disease. Control strategy includes a blend of shade-tolerant grasses. Pruning woody plants to reduce shade intensity and allow better air movement also aids in control. Mowing higher during disease periods and reducing fertilizer applications will reduce infection.
Plants appear water soaked and die rapidly.
When air is moist, colorful red disease strands are produced at the leaf tips, giving the turf a reddish appearance. Maintain a balanced fertilizer program and water to prevent stress. Prune trees to increase light penetration to the lawn and to increase air movement. Collect clippings to reduce spread of the disease spores. Symptoms include the formation of arcs or rings of lush green turf grass, often with two green rings separated by a dead zone.