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Old 11th February 2008, 06:51 PM   #65 (permalink)
Underwor
Semi-mature vigorous tree
 
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Join Date: Feb 2007
Location: North Dakota
Posts: 49
Default Re: longer cuts on poor compartmentalizers| CODIT WALL4

As I understand it, the barrier zone is a chemical deterrent, wall 4 is the physical deterrent that forms as the new growth increments seal the wounded area from the outside. I'll check in the morning when I find the pictures I took at one of Alex's sessions in NH. I know we talked about it that day.
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Bob Underwood, Associate Professor of Forestry
ND School of Forestry
Minot State University - Bottineau Campus
Bottineau, North Dakota
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