BONIDE Captain Jack’s Liquid Copper Fungicide - Concentrate

Captain Jack's Liquid Copper Fungicide is an organic-approved fungicide designed to control and prevent common fungal diseases on a wide variety of plants. Ideal for organic gardening, this liquid concentrate helps protect vegetables, roses, fruits, nuts, herbs, ornamentals, and turf from diseases such as powdery mildew, downy mildew, black spot, peach leaf curl, rust, and more.

Active Ingredient: Copper Octanoate (Copper Soap), 10.00% (1.8% metallic copper equivalent)

This versatile copper fungicide can be applied during both the dormant and growing seasons, making it a reliable year-round disease management tool. When used according to label directions, it's safe to apply up to the day of harvest — though some rose varieties and certain grape or apple varieties may be sensitive to copper sprays, so it's worth testing on a small area first if you're treating a sensitive variety.

Mix 0.5 to 2.0 fluid ounces per gallon of water; apply 1.1 to 2.3 gallons of diluted spray per 1,000 sq. ft. as a general guideline. Application rates and intervals vary by crop. Always check the full product label for the specific rate for your plants before spraying.

Intended for residential use only.

EPA Reg. No. 67702-2-4: This is an EPA-registered pesticide. Read and follow the full label before use. Harmful if swallowed or absorbed through skin — avoid contact with skin, eyes, and clothing. Toxic to fish and aquatic invertebrates; do not apply near water. Keep out of reach of children.

STORE POLICIES

Thank you for shopping with us! Before placing your order, please review our Shipping Policy and Refund and Return Policy. By completing your purchase, you agree to these terms.

We do not provide recommendations on pesticide use. Products are sold for home use only, not commercial use.

QUALITY GUARANTEE

If your beneficial insects or other perishable products are not viable when delivered, email info@naturesgoodguys.sbs within 48 hours of delivery with your order number and a description of the problem. Photos may be requested. Approved replacements ship on Wednesdays and Thursdays.

• Open your package right away and check for storage instructions. Some products need refrigeration, and improper storage voids the guarantee.
• Ice packs help moderate temperature in transit and are not expected to arrive frozen.
• Some insects need time at room temperature before they become active, and many are hard to see without magnification.

SHIPPING

• Processing: 1 to 3 business days. Orders placed by 12:00 pm Pacific may process the same day, but this is not guaranteed.
• Overnight: ships Monday to Thursday, and Friday for addresses with Saturday delivery, excluding holidays.
• Second Day: ships Monday to Wednesday, and Thursday for addresses with Saturday delivery.
• USPS: ships Monday to Friday.
• We do not ship to PO boxes.

Some products are harvested on set days, and we may hold shipments during extreme weather to protect product quality. We will contact you if your order is delayed significantly.

CHANGES AND CANCELLATIONS

Please contact us within 30 minutes of placing your order to change or cancel it.

RETURNS AND REPLACEMENTS

Beneficial insects and other perishable products cannot be returned; they are covered by the Quality Guarantee above. Unopened garden supplies and tools can be returned within 30 days. Full details are in our Refund and Return Policy.

Replacements are not available for an incorrect shipping address, storage or use instructions not followed, or packages left uncollected after delivery.