Centipede decline Centipedegrass Circular dead areas appear in the spring and continue to enlarge dur- ing the summer. Grass at edge of areas may yellow, wilt, and die during stress periods. Dollar spot Centipedegrass Straw-colored patches 2 to 6 inches Sclerotinia Bermudagrass in diameter develop in late summer. Leaves wither and die if many lesions develop, giving the turf a brownish color. Leaf spot Bermudagrass Dark, circular, or oval-shaped Helminthosporium 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. Rust Zoysiagrass Small yellow specks on leaves and Puccinia stems that develop into orange or spp. Heavily infected lawns take on orange or reddish hue and the turf becomes thin and weak. Rust is most often a problem in lawns with too much shade. Slime mold All grasses White, gray, powdery fruiting bodies Mucilago, Fuligo that cover leaves in patches 6 to Physarum 12 inches in diameter during warm, wet weather.