North American Fruit Explorers mailing list at ibiblio

["Bob Kelly" <bkelly66@bellsouth.net>]

Monica,

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" <arboretum@homeorchardsociety.org>
To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
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
> trees...
>
> ...any thoughts or facts on the matter?
>
> Thanks!
> Monica Maggio; manager
> Home Orchard Society Arboretum
> arboretum@homeorchardsociety.org
> www.homeorchardsociety.org
> 503-338-8479
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