Arborists use supersonic air to save 300-year-old tree that survived American Revolution

A centuries’ old “witness tree” that survived not only the Revolutionary War but a direct hit from lightning is facing yet another existential threat. Ironically, the famous oak in Eutaw Springs, South Carolina, is struggling to survive due to the strategies conservationists first used when attempting to preserve it decades ago.The nearly 300-year-old tree was already nearing its semicentennial on September 8, 1781, when around 2,000 British and 2,500 American troops met at the