Bordeaux Mix

Wettable powder combination of copper sulfate and hydrated lime. The powder may be dusted on the plant dry or mixed with water and sprayed on.

It's classified as a fungicide with insecticidal and insect repellant properties.

Controls:

• Anthracnose
• bacterial leaf spots
• bacterial wilts
• black spot
• fire blight
• peach leaf curl
• powdery mildew
• rust

Precautions

• read product label carefully and follow directions
• may burn foliage
• safest to apply just before plants leaf out
• injury is most common at below 50 degrees F and when humidity is high
• Copper is toxic to humans and animals, but its toxicity is somewhat buffered by combining it with the lime

How to Use:

• dust directly on to plants
• mix with water and spray

Sources