What can I use on my St. Augustine lawn for brown patch.
Rainfall encourages the process.
Symptoms on warm-season grasses such as Bermuda grass or St. Augustine include circular to irregular patches of light brown, thinned grass. Leaf sheaths become rotted, and the blade will separate from the runner with a gentle pull. The patches may enlarge to several yards in diameter. And as the disease spreads, new green leaves may emerge in the center of the patches. Water only as needed and early in the day to allow the grass to dry quickly.