Patch areas are less than 3 inches in diameter. Leaf spot lesions present. Dollar Spot Patch areas are greater than 3 inches in diameter. Leaf spot lesions not present. Fairy Ring No rings or arc of lush growth.
Affected areas are distinct circular patches.
Leaf pulls out of leaf sheath very easily. Brown Patch Affected areas are irregular patches of 8 to 24 inches diameter or larger with mixture of yellow and dead grass. Roots are short and black. Stolons may be rotted also. No distinct patches are present.