Dutch Elm Disease in Illinois: Still a Threat to Our Urban Forest
In the early 20th century, American elm (Ulmus americana) was the dominant street tree across much of the Midwest, admired for its graceful form and hardiness. When Dutch elm disease (DED) arrived, it decimated entire neighborhoods. Though the most severe outbreaks occurred mid-century, and are no longer making headlines, DED is still active today and […]