Bordeaux Mixture
This is a product of the reaction between copper sulfate and calcium hydroxide (lime). First used in Bordeaux, France, as a control for downy mildew, this mixture is primarily used as a fungicide, to control bacterial leaf spots, blights, anthracnose, downy mildews and cankers. It also acts as a repellent to many insects and is labeled for use on many vegetable, tree fruit, and nut crops.

Some Bordeaux products on the market, as with sulfur and lime sulfur, can be phytotoxic to plants. It may cause burning of leaves or russeting of fruit when applied in cool, wet weather; check the label to be sure.

Bonide Copper Dust

BONIDE COPPER DUST OR SPRAY (BORDO)

7% Copper sulfate for controlling early and late blight, leaf spots, downy mildew, anthracnose and certain other fungal diseases on vegetables, ornamentals, flowers and fruits.

Won't burn plants.

For more information go to www.bonideproducts.com