I have an 80ft tall Oak tree very close to our house and it appears as though the base of the tree (approx. 7'-0" up) has been infested with some type of bug. The tree in many areas has discolered and it has a very bad odor. It looks like there are bugs going in and out of puss like areas. Do you know if there is anything I can buy to kill these bugs and is the tree in any danger? I appreciate any assistance you may be able to give. Thank you