Organic disease control! Serenade® is a natural, broad-spectrum fungicide that controls harmful diseases. Controls bacterial spot, powdery mildew, rust, gray mold, leaf blight, scab and more. No weather or timing restrictions for application. So safe you can treat, pick and eat fruits, vegetables or flowers the same day and has no phyto-toxicity issues. Concentrate is 1 oz. per gallon for ornamentals, 3 to 4 oz. for vegetables. OMRI listed for organic use.