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the advantage would be getting a jump start on it. If it is on the tree already , you don't have to do it again in the spring. You can get two seasons of growth before dismantling the airlayer giving more finicky trees time to take root. Here in Portland with moderate winters, it's no problem to leave layers on with some protection.
Last edited by pondering sage; 10-13-2008 at 04:48 PM..
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