Slug Necklace: A quick note on how much copper is in a penny

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Slug Necklace

By Bonehead
May 26, 2014

Pennies glued to a cardboard collar, to deter both slugs and weeds.

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Name: Anne
Summerville, SC (Zone 8a)
Only dead fish go with the flow!
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Xeramtheum
May 26, 2014 6:48 AM CST
This is an awesome idea but you want to use pennies made in 1981 and older. Those pennies are 95% copper. Pennies made after 1981 are only 2.5% copper and 95.5% zinc.
"The dogmas of the quiet past are inadequate to the stormy present. The occasion is piled high with difficulty, and we must rise with the occasion. As our case is new, so we must think anew and act anew. We must disenthrall ourselves, and then we shall save our country. "

Abraham Lincoln
Name: Jay
Nederland, Texas (Zone 9a)
Region: Texas Region: Gulf Coast Charter ATP Member I helped beta test the first seed swap I helped plan and beta test the plant database. I was one of the first 300 contributors to the plant database!
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Horntoad
May 26, 2014 1:43 PM CST
Xeramtheum said:This is an awesome idea but you want to use pennies made in 1981 and older. Those pennies are 95% copper. Pennies made after 1981 are only 2.5% copper and 95.5% zinc.


Even though they are only 2.5% copper, it is a pure copper plating around a zinc core. So any slug crawling across a modern penny is still coming in contact with pure copper and it will have the same affect as an older copper coin.

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Name: Anne
Summerville, SC (Zone 8a)
Only dead fish go with the flow!
Plant and/or Seed Trader Birds Cat Lover Greenhouse Tropicals Bulbs
Seed Starter Garden Ideas: Master Level Hibiscus Hybridizer Garden Sages Butterflies
Image
Xeramtheum
May 26, 2014 1:57 PM CST
Ahh .. I did not know that. Thanks for the heads up!
"The dogmas of the quiet past are inadequate to the stormy present. The occasion is piled high with difficulty, and we must rise with the occasion. As our case is new, so we must think anew and act anew. We must disenthrall ourselves, and then we shall save our country. "

Abraham Lincoln
Name: Deb
Pacific NW (Zone 8b)
Region: Pacific Northwest Deer Organic Gardener Ferns Herbs Dragonflies
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Bonehead
May 29, 2014 11:33 AM CST
I didn't take the time to sort out the vintage of pennies -- just slapped them on willy-nilly. It was a very quick project - glue, slap, glue, slap. A child would enjoy this one.
I want to live in a world where the chicken can cross the road without its motives being questioned.
Name: Steve
Millbury, MA (Zone 5b)
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steve_mass
May 31, 2014 5:16 AM CST
Has anyone tested this by putting a slug in the middle and seeing it if makes its way out?

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