This is a warm season disease seen most often at temperatures of 80-85°F when humidity levels are very high. It spreads through mycelia, thus it will “jump” from spot to spot. Mycelia look like spider webs on the lawn which will appear before damage will occur. If you see these “webs” apply Lawn Fungus Control. We have found that applying Love Your Soil to increase air flow along with Lawn Fungus Control works very well.
Mow the affected area last to avoid spreading the fungus. CAREFULLY clean the mower blades with alcohol when finished. DO NOT fertilize if fungus is present in May through mid-September as the nitrogen in the fertilizer will spur on the fungus. Water only in the early morning so the water can be thoroughly absorbed before nightfall. Improving soil conditions and reducing thatch will help prevent patch disease and fungus.
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