penny's worth of copper to fight diseases?

JRinPA · June 21, 2020

Searching for info about corn tillers/side shoots, the wonderful search engines of 2020 derailed me to some picture of a copper penny laid into a cut tomato leaf stem. The theory is that the copper in the penny (US penny '82 or older, 95% copper) will help the plant fight just like the copper sprays but at a tiny fraction of the cost and no lingering toxicity to the soil/environment.

I did a search here on tville and see nothing mentioned. The fact that no one is profiting from this idea lends it some credence, at least to me. Anyone ever try it? Results?

June 21, 2020	#1
JRinPA Tomatovillian™ Join Date: Jul 2013 Location: SE PA Posts: 972	penny's worth of copper to fight diseases? Searching for info about corn tillers/side shoots, the wonderful search engines of 2020 derailed me to some picture of a copper penny laid into a cut tomato leaf stem. The theory is that the copper in the penny (US penny '82 or older, 95% copper) will help the plant fight just like the copper sprays but at a tiny fraction of the cost and no lingering toxicity to the soil/environment. I did a search here on tville and see nothing mentioned. The fact that no one is profiting from this idea lends it some credence, at least to me. Anyone ever try it? Results?