In bermuda, centipede, and ryegrass, patches are brown. In St. Augustine, straw-colored. Webbing may be evident early in the morning. Circular straw-colored areas only a few inches across, although spots may merge, resembling brown patch. Live blades may have straw-colored lesions along one edge.
Lesion moves across blade, causing tip to dieback.
Small, irregular spots may enlarge and appear dark and watersoaked in early stages. White, cottony mycelia may be evident. Grass in affected spots dies rapidly, collapses, and appears matted. Fungicides that can help prevent further infection by this water mold while corrective measures are taken are not available in volumes and at costs reasonable for homeowners. Leafspots more numerous near collar area of leaf blade.