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Quote:

Originally Posted by rlist

Dale- I assume you don't have any issues with the galvanized wire, but is that healthy for the tree? I am not sure why it wouldn't be, but I have always heard the way to kill a tree is drive a galvanized nail into it...

Out here in the dark ages looking for a little light...

Rich

Rich
I have heard many versions of this. Copper, Stainless steel and galvanized nails and screws have all at one time or another been said to kill trees.
I lived in my last house for 18 years. There is a tree in the back yard that has all three in it. I put several screws of each in that tree about 15 years ago. It is still alive. Never even got a head ache.
It is true that roots do not like free standing copper. Most plant roots will not grow near the copper. The is why one can buy nursery cans with a copper lining. They stop the roots from growing to the edge of the pot and helps in keeping the roots from circling the pot.
Could it be an old wives tale. Maybe. Can guarantee one thing though that tree in my back yard didn't believe it ;o)