The disease chokes the trees to death by wedging itself into their trunks and obstructing conduits for water and nutrients. Asian chestnut trees evolved a resistance but their North American relatives were highly susceptible to chestnut blight.
Chestnut blight causes a deadly disease that chokes trees by clogging their trunks and hindering the flow of water and nutrients. While Asian chestnut trees have evolved resistance, North American varieties are extremely vulnerable to this blight.