Homemade Powdery Mildew Control
- 1). Create a solution of 1 cup skim milk and 9 cups warm water. Mix the contents together with a long-handled spoon.
- 2). Pour the solution carefully into a garden sprayer. Alternatively, a spray bottle will work as a substitute for a garden sprayer.
- 3). Spray the plants with the solution until you have thoroughly coated them. When spraying, make sure you coat the top of the leaves as well as the undersides.
- 4). Apply the solution to the plants every three days until the powdery mildew is completely gone.