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  • From: "Bob Kelly" <>
  • To: <>, "nafex mailing list at ibiblio" <>
  • Subject: Re: [nafex] galvanized nails
  • Date: Fri, 13 Jul 2012 11:07:41 -0500


Galvanized nails are iron coated with zinc metal. Zinc is a nontoxiic mineral which is among the dietary supplements I take regularly. I suppose the acidic tree sap will dissolve some of the Zn as well as the Fe (iron) from the nails. This will be available to help nourish the tree. I see no possibility of possible toxicity. Actually, zinc mineral is often added to pecan trees.

Bob Kelly (Retired Chemist)
Aberdeen, MS

----- Original Message ----- From: "Monica Maggio" <>
To: "North American Fruit Explorers" <>
Sent: Friday, July 13, 2012 10:57 AM
Subject: [nafex] galvanized nails

Does anyone know if it is hazardous to use galvanized nails on fruit trees?
They have been used for years to hang variety labels on our fruit trees in
the Arboretum and it has recently come to my attention that the mix of
metals commonly found in anything galvanized may in fact be toxic to the

...any thoughts or facts on the matter?

Monica Maggio; manager
Home Orchard Society Arboretum
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