Insect damage in trees can be hard to spot. Often there are only a few bored holes or deep cracks in the bark.
Once we cut in to the areas of disease, you can see how much infection there truly is.
The red/pink tissue is healthy and living. Wood-boring insects eat through the living tissue and excrete as the move through the tree. This is indicated by the black & brown pockets and holes that are seen here.
We removed the diseased/dead standing tissue and killed many destructive worms in the process.