Dutch elm disease was introduced to the United States in the early 1920s. It quickly decimated our American elms, killing hundreds of thousands of trees. The disease first appeared in Kansas in 1957 ...
The American elm (Ulmus americana) was once a common sight on the Upper Mississippi River, but Dutch elm disease, or DED, has killed many trees. DED is an invasive fungal pathogen that is spread by ...
Seventy-five years ago, Dutch elm disease arrived on these shores from Europe with devastating impact. Moving from the East Coast to the nation's mid-section, the disease since has claimed millions of ...
Answer: I’m glad you’re asking this question when these weedy, invasive trees are small and relatively easy to control (emphasis on the “relatively”). We all know how precious shade is in New Mexico, ...