I have a white yoshino flowering tree behind my home that is very nice and?

Question:about full grown, but there is a split between the two main trunks and some bugs have gotten in...I have seen earwigs before, but now something that looks like walking wasps? Is that carpenter ants or termites? I put some dishsoap in there sometimes and sometimes some rubbing alcohol to kill the bugs...there is a lot of rotten wood in the split, but the top of the split is holding good so far and the leaves are green...any ideas on this?

Answers:
Have an arborist look at the tree. If it is diseased they may be able to save it. If you let it go, it sounds like the tree will die eventually.