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Old 10th November 2007, 06:15 PM   #4 (permalink)
Quintrex
Over mature heritage tree
 
Join Date: Jun 2007
Location: Sydney
Posts: 582
Default Re: japanese maple problems

If this tree has thrived for 50 years and has declined recently, have any changes occured to it's environment?
eg; has another tree or building been removed which would increase it's exposure to sun or salt laden air?
Any changes to soil level, or building site uphill from it causing leaching of lime or cement into water table? any chance of underground gas leak below the tree?
Just a few things to check for.
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