Black Mold on New Lawn: Identification and Treatment

Black mold on washed-out lawn areas is likely the same household mold from dampness—not highly dangerous. Spray with:

• Bleach: 1 cup per 2 gallons water
• Baking soda: ¼ cup per gallon water
• Hydrogen peroxide: 1 oz per 1–2 gallons water

Apply via garden sprayer. Follow with corn gluten meal (fungicide + fertilizer) per package directions to prevent recurrence. Test which treatment works best.