I have a massive white pine on my shoreline on Bay Lake in Crow WIng County. It is ~8 ft diameter at the base and is about 10 feet from the shore, about 1.5 feet above water line. The sub-soil is sandy and is eroding in areas outside of this tree's root area. The bald eagles use it as a fishing roost so the top branches are a bit scraggly. The tree looks fairly healthy at this point, but I would hate to lose this tree so I want to do everything I can to improve its health. I notice a few holes in the bark where woodpeckers have been looking for bugs. Please let me know if I should be actively trying to control insects or fungus of any kind. I do not think lack of water can ever be an issue for this tree unless the lack falls significantly. It is still pretty high now. I can get a photo of the tree if that helps. Thank you very much!