Bordeaux: Mixture

The final solution must be neutral or slightly alkaline (

A common formulation is the 4-4-50 mixture, meaning 4 lbs of copper sulfate and 4 lbs of lime in 50 gallons of water. bordeaux mixture

); acidic mixtures are phytotoxic and can burn plant foliage. The final solution must be neutral or slightly

Pulverized copper sulfate and hydrated lime are added directly to a filling spray tank while the agitator is running to ensure even mixing. bordeaux mixture