The mixture is traditionally prepared by dissolving copper sulfate in water and adding a suspension of lime. Mixing copper sulfate ( ) and lime (
Two primary methods are used for small-scale and commercial applications: bordeaux mixture
Pulverized copper sulfate and hydrated lime are added directly to a filling spray tank while the agitator is running to ensure even mixing. The mixture is traditionally prepared by dissolving copper
Separate concentrated solutions of copper sulfate and lime are prepared in non-metallic containers. These are then diluted and combined in a spray tank. These are then diluted and combined in a spray tank
The final solution must be neutral or slightly alkaline (
Bordeaux mixture is one of the most historically significant fungicides in agriculture, consisting of a combination of , quicklime (calcium oxide) or slaked lime , and water . First developed in 1882 by French botanist Pierre-Marie-Alexis Millardet to combat downy mildew in vineyards, it remains a staple in both conventional and organic farming due to its efficacy and low cost. Core Components & Chemical Composition