Bonide Captain Jack’s Copper Fungicide RTS (16oz) is a ready-to-spray formula designed to protect your plants from a wide array of fungal diseases. It effectively treats and prevents blights, leaf spots, downy mildew, powdery mildew, and more across a variety of crops and ornamentals.

Formulated with copper octanoate, a naturally derived compound, this fungicide creates a protective barrier on plant surfaces to halt the development of fungal pathogens. Its low-impact formula makes it suitable for organic gardening and safer for beneficial insects when used as directed.

Key features and benefits:

• Active ingredient: Copper octanoate – derived from a naturally occurring mineral.
• Controls a broad spectrum of fungal diseases including early and late blight, rust, and anthracnose.
• Ready-to-spray (RTS) bottle connects directly to a garden hose for fast and even coverage.
• Ideal for vegetables, fruits, roses, herbs, flowers, and ornamentals.
• Can be used as both a preventative and curative treatment.

This copper fungicide is part of a broader integrated pest management strategy. For additional solutions, visit our full line of Organic Pest Control products.