The 32 oz Serenade Garden fungicide helps you control bacterial spot, powdery mildew, rust, gray mold, leaf blight, scab and more in your hydroponic and horticultural systems. This product is a safe, natural, broad spectrum, effective fungicide that controls harmful garden diseases and is approved for organic gardening. Same effective active ingredients used by 1000's of commercial growers with no weather or timing restrictions for application. Serenade Garden is so safe, you can treat, pick and eat fruits, vegetables or flowers the same day! Also, no phyto-toxicity issues, making it perfect for your hydroponic or horticulture gardening needs and at the best price of any discount gardening supply warehouse.Concentrate mixing ratio = 1 oz. per gallon.