american chestnut

Video: Death of the American Chestnut

The health of the American chestnut took a quick and deadly turn for the worse right around the turn of the 20th century with the introduction of the non-native pathogen Cryphonectria parasitica, the causal agent of chestnut blight.

American Chestnut Makes a Comeback

 When botanists were grappling with the harsh realities of the arrival of the emerald ash borer to U.S. forests, most referenced the devastation that might come to ash trees in terms of another native tree, all but wiped out by blight. That tree was the American chestnut, Castanea dentata. Scientists now have reason to hope that the majestic trees, once widespread throughout North America but virtually eliminated by the Asiatic blight fungus Cryphonectria parasitica, formerly known as Endothia parasitica, might return blight resistant.