Combat diseases in your lawn and home garden with Bonide Copper Fungicide! This ready-to-use spray or dust controls diseases on a variety of plants in your garden including potatoes, tomatoes, fruits, vegetables, herbs, flowering shrubs, shade trees and more. The active ingredient, Basic Copper Sulfate, acts as a Bordeaux replacement for your modern gardening needs. Approved for organic gardening, this product is suitable for the organic production of fruits, vegetables, flowers and more – and can even be used up until the day of harvest! Copper Fungicide works to control many common garden diseases including powdery mildew, downy mildew, black spot, early blight, peach leaf curl and other listed diseases! This product arrives conveniently ready-to-use! Use as a dust or mix with water to create a spray solution. Please see product label for full use instructions.