White Dust on Grass

Question

I have a white dust appearing on healthy grass. There has been a small area on the north side of our house the past couple of years, but this year it seems to be spreading to other parts of the yard. The grass appears healthy and green. Any thoughts?

Answer 1

While I cannot be totally sure, the white dust you mention sounds like powdery mildew. Here is an article that you may find helpful: https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm