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bonsaiTALK Master
Join Date: Nov-2003
Location: Whitefish Montana
Country: United States
Posts: 466
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I use galvanized wire for the screen on all my trees for 20 years or so and my trees seem to be ok with it. Perhaps they would be even better without it? 
Jerry
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Jerry Meislik
Whitefish Montana USA
Zone 4-5
http://www.bonsaihunk.us/
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