How to Get Rid of Mold on My Lawn

Press a measuring stick through your grass to the soil to check the layer of thatch. Thatch is the layer of dead and living organic material that naturally accumulates on your yard. If the layer is more than an inch thick, remove the thatch with a dethatcher. According to the North Dakota State University, thatch removal and other changes in your lawn cultural practices are the best defense when ridding your lawn of fungal diseases.

Set the dethatcher's blades to medium and push across the lawn. Rake up the debris and burn or throw away. Avoid placing in your compost, because the fungal spores can infect the rest of the yard.

Apply a fungicide to the yard that is chemically formulated to kill the types of fungal disease that has infected the grass. Pick a time in the morning to apply your fungicide according to the directions. Reapply the spray in a few days.

Dig up dead patches that have succumb to the fungal disease. If you notice that the grass blades are brown dead, press a shovel 3 inches from the base of the grass blades and 6 inches deep to remove the entire root system. Till the bare areas to break up the soil. Broadcast your grass seeds over the area and cover with 1/8 inch of compost. Water the bare areas thoroughly.

Decrease the amount of nitrogen you give to the grass in the spring. Give your grass 8 ounces of slow-release nitrogen, instead of the typical 1 pound, when the grass has greened up. Return to the regular amount of 1 pound of nitrogen in September when the grass has gone dormant.