Actinovate Soluble Powder (SP) is a biological fungicide with active ingredient Streptomyces lydicus. For organic control of Powdery Mildew, Downy Mildew, Botrytis, Fusarium and other difficult to control diseases in greenhouse, ornamentals, landscape soil, bulbs, corms, tubers. Apply as a foliar spray, soil drench, flood or drip irrigation, or root soak. Can also be used in hydroponics. General application rates are from 4-6 oz. per acre or 1 tsp. per gallon of water for smaller applications following the directions on the label for the specific end use. Ships in an 18 oz. package. OMRI listed for organic production.