Should I fill the large holes in my pecan trees?
Several of my mature pecan trees have large holes that collect water inside. I am concerned about them rotting and falling. Do I need to worry about this? If I should fill the holes, what do I fill them with and how?
Certified GKH Gardening Expert
In this case I would recommend having the trees looked at by a professional Arborist.
Here are links with more information including how to repair holes in trees.