Collection: Copper Fungicides

A copper fungicide may help manage certain fungal or bacterial plant diseases when the specific crop, disease, and application are listed on the label. Copper products differ in active ingredient, concentration, formulation, and approved uses, so diagnose the problem before choosing a product.

Compare copper fungicide products

• Concentrate: requires label-directed measuring and dilution.
• Ready-to-spray: connects to a hose or uses another premixed delivery format as described on the label.
• Active ingredient: confirm the copper compound and metallic copper equivalent where listed.
• Organic production: verify the exact product’s current input-material listing; copper content alone does not establish eligibility.

Use copper carefully

More is not better. Copper can injure sensitive foliage or accumulate in soil, and risk varies with plant, growth stage, weather, water pH, formulation, and rate. Follow the label for mixing, coverage, timing, reapplication, protective equipment, environmental precautions, and harvest restrictions. Do not assume one copper product is labeled for every crop or disease.

Use our plant disease diagnosis guide before selecting a treatment. Compare broader plant fungicides and focused powdery mildew treatments.