We have a problem with a Linden tree in our backyard. This tree was professionally planted ten years ago by a commercial company specializing in Garden needs, so I would hope that it was planted properly. The tree was about 8ft tall when planted and is now less than 12 feet tall, so it has grown very little in these past ten years.
It started showing problems right from the start, but we were hoping that it would “pick up” after a few years. Yes our winters are harsh in Timmins, Ontario, but there are many healthy Lindens right in our neighbour’s yard, less than twelve feet away from our tree. The leaves seem to be misshapen, drooping. There has been no construction work, nor changes near it, nor do we have squirrels, or damaging insects. A fence is located 5 feet from the tree, near the back of our property.
There are several white spots of moss or fungus from top to bottom.
Outside United States
The best idea is to have a certified arborist come evaluate and definitively diagnose the problem and give you some treatment options. Search for reputable arborists in your area here: http://www.isa-arbor.com/
Read more about borers here: http://www.ext.colostate.edu/pubs/insect/05530.html
Read about sapsucker damage and view the characteristic pattern of their holes here: http://www.clemson.edu/extension/hgic/tyk/2008/tyk01.html
This publication from the University of Minnesota may help you self diagnose your tree problem: http://www.extension.umn.edu/garden/diagnose/plant/Thanks, G.
There are no registered arborist in our area...can someone give a opinion?