Certified organic and OMRI-listed Oleotrol-M Concentrate prevents and removes powdery and downy mildew, botrytis, rust, sour rot, gray mold and other surface fungi from plants. The liquid concentrate formula is safe and won’t cause any harmful reactions to plants. Microscopic nano-particles in the formula pierce the cell walls of the surface fungi on the stems and leaves of affected plants, and effectively kill any unwanted fungal infection. Use 0.5 oz of this concentrate with one gallon of water for direct application, or .43-.45 oz per 100 gallons of water for a spray solution. Reapply 7-10 days after first use for best results.