EditorialMushrooms around the roots of the sugar maple, an indication that the tree has Armillaria root rot, on Darlyn Hoffstot's farm in Ligonier, Pa., Nov, 14, 2022. (Kristian Thacker/The New York Times)
EditorialMushrooms around the roots of the sugar maple, an indication that the tree has Armillaria root rot, on Darlyn Hoffstot's farm in Ligonier, Pa., Nov, 14, 2022. (Kristian Thacker/The New York Times)