Meet the latest threat to Ontario’s forests — and it’s lurking just off shore
Like emerald ash borer, or Dutch elm disease, oak wilt can kill every oak tree in its path, forester says
Oak wilt has been found in Belle Isle, Mich., about 500 metres from the Canadian border. It can infect and kill off every species of oak, says Richard Wilson, a recently retired forest program pathologist with the Ontario Ministry of Natural Resources.
CBC News asked Wilson how to spot oak wilt, and what’s at stake if it makes it to Canada.