How Do You Get Rid Of Powdery Mildew On Zinnias?
How Do You Get Rid Of Powdery Mildew On Zinnias? Use this recipe to make your own solution—mix one tablespoon of baking soda with a teaspoon of dormant oil and one teaspoon of insecticidal or liquid soap (not detergent) to a gallon of water. Spray on plants every one to two weeks. How do you