Why is my lawn white?
It could be a powdery mildew, which is a fungal disease, and can occur when it has been damp recently. It looks like a white dust covering the grass in patches and usually occurs in areas of shade, damp or poor drainage.
Alternatively, patches of white on the lawn can indicate that the granules from our products have not been watered in enough. Additional watering will make them disappear since they will be absorbed into the grass.