However, several things may be done to reduce damage. Remove tree roots, boards, and other organic debris. Remove soil cores or in some manner, open the soil within the ring to allow better water and nutrient penetration. Inject water into the ring with a root feeder. Leaves first appear dark green and water soaked, then wilt and turn light brown.
Dead leaves remain upright.
A dark, grayish-black ring of wilted grass often is present at the perimeter of the diseased areas in early morning. Symptoms on blue grass may resemble the 'Frogeye' pattern caused by fusarium blight. The use of a dull mower blade frays the edges of cut blades and serves as a point of entrance of the fungus into the leaf. When you are troubled with lawn and garden diseases, we will be pleased to consult with you at your home for a fee. If you wish to bring a sample of the problem to the nursery, we will be happy to give you the benefit of our experiences free of charge.