What are tree borers
Sap running, big flies with lg blue wings. Tree is turning black ice pick like holes on the branches
Cumberland County North Carolina
What kind of tree is being damaged? Can you send a picture of the damage and of the fly that you're seeing?
The tree before I noticed the damage now and a branch with the holes it was raining when I took damage pics and at night hope the pics help
The best I can tell from your "before" picture is that you possibly have a sugar maple. I recommend that you take pictures during the day and when it isn't raining, From these pictures, the only thing I see is lichen on the bark which is normal for a tree as it ages.