Shirley from Florida writes
Yes, Bonide Liquid Copper Fungicide Concentrate is labeled to be applied on citrus fruits including lemons for Powdery Mildews, Downy Mildews, Leaf and Fruit Spots, Blights, Rust, Fruit Rots. Please refer to the product label for complete instructions on your target use.
Answer last updated on: 09/09/2021