Mycostop Biofungicide 2 Gram Mycostop Wettable Powder is ideal for hydroponic growing environments, will not clog pumps or sprayers Apply as a soil drench, foliar spray or with hydroponics Makes 20+ gallons of solution at the average application rate for use on all crops such as vegetables, herbs, ornamentals; Colorado MMED approved for use in medicinal gardens Control or suppression of many root rot and wilt pathogenic fungi, including Pythium (root rot), Fusarium, Alternaria, Phomopsis, Rhizoctonia, Phytophthora, and Botrytis Organic & safe to apply, OMRI listed since 1988