Q.How to make Bordeaux Mixture
Could you please advise precisely the ingredients and quantities required to make half a gallon of Bordeaux Mixture. There is a method on this site but I do not understand the quantity’31/3′ tablespoons of copper sulphate! Thanks very much. Mary McCarthy

Downtoearthdigs
Answered on August 21, 2018
3 1/3 tablespoons comes out to just about 50 ml of copper sulphate. That's for a gallon recipe, however. So if you want only half a gallon, you would want to use 35 ml of copper sulphate and 5 tablespoons or about 75 ml of hydrated lime.
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