Hello great master. You mentioned the harms of copper in one of your videos. But now I can't find that video. in my area
Copper-based drugs are used in grape and olive trees in winter environments. Grapes are also used for dead stem and vineyard mold. I don't want to use copper. I want to use jwa and js on your recommendation.
400 kg of pure water
15 kg of jwa
1.5 kg js Your suggestions are very important to me. thank you
NOTE: Can we send the link of the video you mentioned about the damages of copper?