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SLUGS and salt $.o1
The copper on the pennies reacts with the mucus that the snails & slugs
secrete. The reaction creates a slight electrical current, strong enough to discourage them from crossing the copper. Forgive me...but this sounds like folklore. I checked around google, and it seems to be common knowledge! How strange! Don't you need two types of metal to create a current? Weird. You learn something every day. Anyway, I am off to collect slugs. I plan to power my pump with them and some pennies. Copper works to repel snails (1) but I've always doubted the mechanism is electric current. I suspect copper sulfate and other copper compounds on the penny, copper is highly toxic to invertebrates. (1) Organic Gardening magazine once did a comparison of all the snail repellants on the market and copper foil was the clear winner, might have been the only one 100% effective, I can't recall... |
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