Dutch Elm Disease affecting a mature English Elm at Wst Point, NY June 2010
描述：
Description: A large English Elm infected with Dutch Elm Disease at West Point, NY June 2010. Date: 3 July 2010. Source: Own work. Author: Ahodges7.
Description: A large English Elm infected with Dutch Elm Disease at West Point, NY June 2010. Date: 3 July 2010. Source: Own work. Author: Ahodges7.
