How to Identify Powdery Mildew
Powdery mildew first appears on the leaves as individual tufts of fine, white mycelium. The tufts enlarge and coalesce, causing the leaves to have a grayish-white or powdery appearance. Severely infected turf turns yellow, then tan and brown in color.
Why Is Powdery Mildew a Problem for Your Lawn?
This lawn disease is typically a result of grass that is already under stress, high humidity, has poor circulation and shady areas in the mid-60’s. Turf that is severely infected, especially in shaded areas, can become thinned and/or die.
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Susceptible Grass Types