Question

Tree hollow decay   QUESTION: Recently I had storm damage to a maple tree.  The winds split the tree down the middle exposing what appears to be decaying materials in the hollow of the tree.  I have not seen any worms or beetles, just black ants.  Is this a bug infestation or tree disease?  When the tree is cut, is the decay (rot)in the hollow of the tree a potential bug infestation? Attached is a photo of the subject tree, please note that the tree that is in the vicinity is also showing the vertical split. If you need a close up, please let me know.  Thanks.

ANSWER: Hi Trish:

More than likely the scenario goes something like this. Sometime ago (maybe years) there was an injury to the bark or branch where microorganisms (bacteria, fungi etc)enter the tree and began the decay process.  The injury can occur many different ways- everything from a branch breaking off to a lawn mower or construction equipment knocking off some bark when passing by.  The decomposing wood inside provides a good habitat for bugs (ants, termites centipedes and a bunch others)to move in and setup housekeeping.  These bugs are the result, not the cause of the decay, they just find this a good area to be.  Unfortunately, there is no magic bullet. The decay is often a slow, yet progressive situation.  Nothing out there to reverse it or stop it. Best thing to do for these situations is prevention--- preventing wounds to the bark.  The tree isn't completely helpless, if it is being watered and fertilized well, it can "wall off" the decay to some extent- to isolate it to a certain extent.

The decay will ultimately weaken the tree structurally, making it likely to go down during a wind storm or ice buildup.  Making firewood out of this one is probably a good option to consider.

Regards
Steve

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Maple trees   QUESTION: Is the tree in the background that has the vertical split just like the damaged one salvageable?  Given the presence of this split I can only surmise that there is decay present within the structure.  Can that type of vertical split be the result of anything else other than a weakness of the structure?  It has a denser canopy that the damaged tree (image attached). Can it be salvage or reinforced to keep the weight of the canopy from weakening the structure further.  Thanks.

Answer
Trish:
I would also suspect some level of internal decay in that tree (nearest the house)as well. That tree looks like the right hand portion could fail at some point, especially if there is weight applied to that portion- like a snow/ice acumulation.  This is my opinion, not being able to examine the tree more thoroughly in person. Long term survival may be questionable in this case.

Consider getting the opinion of a certified arborist who can visit your tree in person and can give you a professional opinion.

Regards
Steve