Leaves wither and die if many lesions develop, giving the turf a brownish color. Management Avoid excessive fertilization with nitrogen when warm, humid weather is expected. Avoid late afternoon and evening watering. Prune trees and undergrowth to improve air movement and light intensity. Turf Affected Bermudagrass Symptoms Dark, circular, or oval-shaped lesions develop on blades and stems.
Some lesions become red, purple, or tan with dark margins.
Turf appears yellow to brown if the disease is severe and becomes thin. Management Fertilize properly and avoid close mowing in late spring and summer. Keep mower blade sharp. Water deeply but infrequently and avoid prolonged leaf wetness. Turf Affected Zoysiagrass Symptoms Small yellow specks on leaves and stems that develop into orange or red pustules.