this post was submitted on 26 Jun 2023
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Thanks, nice to know trick of the trade. Now to look for copper sulfate where to get
@[email protected] is right. Nurseries is where you can find it now. I just checked our local "Big Box" online and it's in the garden section.
Copper sulfate is (scandalously) sold as an "organic pesticide" at least here in France because it has been traditional in the treatment of grapes for a very long time.