Monterey Liqui-Cop Copper Fungicide Concentrate

Monterey® Liqui-Cop® 8oz Concentrate is a professional-strength liquid copper fungicide formulated to help prevent and control a broad spectrum of fungal and bacterial plant diseases on vegetables, fruit trees, citrus, roses, ornamentals, and nut trees. This concentrated copper fungicide creates a protective barrier on plant surfaces to stop disease spores from developing before infections begin.

Trusted by home gardeners, orchard growers, and landscape professionals, Liqui-Cop® is highly effective against common garden diseases including powdery mildew, downy mildew, anthracnose, black spot, leaf spot, brown rot, peach leaf curl, blights, and fireblight. Its long-lasting weather-resistant copper formula adheres well to plant surfaces and becomes rain-fast once dry for dependable disease protection throughout the growing season.

Unlike older Bordeaux-style copper sprays, Monterey Liqui-Cop® does not require added surfactants, spreaders, stickers, or oils to remain effective. It can be used during active growth as a preventative fungicide spray or applied during dormancy alongside horticultural oils to help control overwintering fungal diseases on fruit and ornamental trees.

Key Features & Benefits

• Concentrated liquid copper fungicide
• Prevents fungal and bacterial plant diseases
• Effective against powdery mildew, blight, black spot, anthracnose, fireblight, and leaf curl
• Rain-fast formula once dry
• No added surfactant or spreader-sticker needed
• Great for vegetables, roses, citrus, fruit trees, ornamentals, and nut trees
• Ideal for preventative and dormant season spraying
• Easy-to-mix concentrate for flexible application rates

Diseases Controlled

Helps control:

• Powdery mildew
• Downy mildew
• Anthracnose
• Black spot
• Peach leaf curl
• Brown rot
• Fireblight
• Leaf spot
• Various blights and fungal infections

How to Apply

Mix 0.5–2 fluid ounces of Monterey Liqui-Cop® Concentrate per gallon of water depending on the plant type and target disease. Thoroughly spray all plant surfaces including leaves, stems, branches, and fruit until fully coated.

For best results, apply before disease symptoms appear or immediately at the first sign of infection. Copper fungicides act as a preventative barrier and are not intended to cure established disease outbreaks.

Ideal For Use On

• Tomatoes and vegetables
• Fruit and citrus trees
• Peach and apricot trees
• Roses and ornamentals
• Nut trees
• Landscape shrubs and plants

Always read and follow label directions before use. Keep out of reach of children.