Bonide Captain Jack Liquid Copper Fungicide Ready to Use- 32oz

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Product Name Price/Ea. Quantity
Bonide Captain Jack Liquid Copper Fungicide Ready to Use- 32oz
Bonide Captain Jack Liquid Copper Fungicide Ready to Use- 32oz
Total: $0.00

Bonide Liquid Copper Fungicide Ready-to-Use Spray controls powdery mildew, black spots, and rust. For use on roses, fruits, vegetables, ornamentals, and turf. It is approved for organic gardening using a natural copper formulation.

Product Information

Bonide Liquid Copper Fungicide Ready-to-Use Quart (32 oz) Spray Bottle

Bonide's Liquid Copper Fungicide protects your flowers from fungal infections and controls a wide range of diseases in vegetables, fruits, berries, roses, cedar, and pine trees.

This ready-to-use fungicide effectively controls powdery mildew, black spot, rust, blights, leaf spot, azalea dieback, pyracantha fire blight, scab, pine and juniper needle blight, cedar apple rust, and anthracnose.


  • Plants: Ideal for roses, fruits, vegetables, ornamentals, and turf.
  • Organic Gardening: Approved for organic gardening with a natural copper formulation, using low concentrations of copper.
  • Application: Suitable for both dormant and growing season applications.
Packaging 1 Quart (32oz)
Product Label Label
More PDF's N/A
Target Pest

Effective against a wide range of common fungal diseases, including downy mildew, black rot, leaf spot, powdery mildew, blight, and peach leaf curl,, among others. This comprehensive protection helps ensure the health and vitality of your plants by preventing and controlling multiple types of fungal infections.

Active Ingredient (s) Copper Octanoate (Copper Soap)...0.08%
For Use :

For controlling fungal diseases on roses, fruits, vegetables, ornamentals, and turf:

Applicable for pines, sycamores, turf, roses, and ornamental shrubs like crape myrtle, forsythia, hydrangea, and more.

Approved for organic use on a variety of plants, including beans, peas, carrots, citrus fruits, corn, cruciferous vegetables, cucurbits, grapes, onions, garlic, peanuts, pome and stone fruits, small berries, tobacco, tomatoes, potatoes, and walnuts.

Yield 22fl oz will treat 7 square yards
Mixture|Application Apply thoroughly to the tops and undersides of leaves and all plant surfaces on affected plants.

Powdery Mildews: Spray before the disease appears or at the first sign of mildew. Thoroughly cover all parts of the plant, repeating the application every 7 to 10 days. For plants highly susceptible to powdery mildew, like greenhouse-grown cucumbers, spray twice a week during the first 2 weeks after emergence and then weekly. Reapply on outdoor plants after rain.

Downy mildews, Black Rot, Leaf & Fruit Spots, Blights, and Rust: For optimal control, start treatment when new growth reaches 1/2 inch. Continue to apply every 7 to 14 days throughout the growing season. Regular and consistent treatment ensures comprehensive protection and helps maintain plant health.

Peach Curl: Thoroughly spray all plant surfaces with this product. It can be used to control peach leaf curl. Apply as a dormant spray late in the fall during dry weather.

Retreatment Generally apply every 7-10 days as long as needed. See label for different recommendations. Re-apply after rain.
Shipping Restrictions N/A
More Instructions

For best control, begin treatment 2 weeks before the disease normally appears or when weather forecasts predict a long period of wet weather.

Frequently Asked Questions


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