Treating Brown Patch Fungus Organically

Large circular brown patches with no roots often indicate brown patch fungus. Organic treatment: spray 1 rounded tablespoon baking soda plus 1 teaspoon agricultural soap per gallon of water on affected areas. Alternatively, apply corn gluten meal at 15–20 lbs per 1,000 sq ft and water in. Both suppress fungus without harming soil life. Avoid synthetic fungicides and fertilizers, which kill beneficial microbes and perpetuate the problem. An organic program (sugar, deep watering, high mowing) builds long‑term resistance.