GreenCure® is a fungicide that cures and prevents powdery mildew, blackspot, blights, downy mildew, molds, and other plant diseases. Its active ingredient, potassium bicarbonate, is a naturally occurring compound that is widely used in food and is an integral part of humans, animals, plants, and virtually all living organisms. Safer for both you and the environment than other alternatives. Recommended for use on over 150 different vegetables, flowers, trees, fruits, and turfs. Simply dissolve with water and spray on the leaves, flowers, stems, and branches. Dries quickly and clean. Vegetables may be harvested within 1 hour of spraying. 8 oz. container makes up to 16 gallons of spray. OMRI listed.