Keep your garden healthy with Bonide's 811 Copper Fungicide Concentrate Pint. Our patented, copper formulation protects a wide range of plants from turf to veggies, fruit and flowers from listed diseases, particularly blight. Suitable for organic gardening, the concentrate can be used as dust or spray and contains 7.0% Copper Octanoate. The 16oz bottle covers up to 5000sqft, and is a contact fungicide—not systemic—so you can rest assured your plants remain safe and healthy.