Powdery Mildew Lawn Disease
This disease is caused by the fungus, Erysiphe graminis, and appears as a grayish-white powdery growth on the surfaces of the grass blades. Leaves may turn yellow and gradually die. It is an important disease on bluegrass, fescue and bermuda, especially in areas of shade or little air movement.
Prevention and Treatment
Increase sunlight penetration to densely shaded areas, or select a more shade-tolerant cultivar. A balanced fertilization program is important for the lawn. Mow the lawn often and at the recommended height. Increasing air circulation will also help to control powdery mildew. Fungicide may be necessary for control. Your Fairway Lawns technician can determine if a fungicide treatment plan is necessary.