Making Bordeaux Mixture for a Dormant Spray
Channel: YttriumNitrate
Date: 2012-02-19

After a string of warm days the buds on the trees are starting to swell a bit, so it's time to start thinking about fungicides. Most fungicides act as a preventative and need to be applied before an infection is noticeable. Bordeaux Mixture is considered to be "organic" and is fairly easy to make.

Bordeaux Mixture Recipe:
1. Dissolve 1 pound of Hydrated Lime in 1 gallon of water.
2. Dissolve 1 pond of copper sulfate in 1 gallon of water.
3. Let the two mixtures stand overnight (or at least a few hours).
4. Add 2 cups of the hydrated lime solution to a 1 gallon sprayer.
5. Add 2 cups of the copper sulfate solution to the 1 gallon sprayer.
6. Fill up the 1 gallon sprayer with water.
7. Shake the sprayer to ensure a good mixture.
8. Clean out the sprayer with water after you are done...Bordeaux Mixture leaves a reside that can easily clog up a sprayer.

**This recipe creates a 10-10-100 mixture. Some applications call for a 5-5-100 mixture, for that just put 1 cup of each solution into the sprayer instead of 2.**