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 ...

Q: I understand there's been progress in developing Dutch elm disease-resistant American elms that are also relatively fast growing. Do you have any information and varieties you can recommend? - Dan ...

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Question: What's the best way to distinguish young elm tree species apart from one another? We have a bunch coming up in our yard and we're trying to figure out if they are Winged, Cedar or American.

A new, invasive insect species has been detected in Ohio for the first time, authorities said. The elm zigzag sawfly was spotted by researchers infesting elm trees in both Franklin and Delaware ...

Dutch elm disease is the grim reaper of United States’ elm trees. Since the 1930s, it caused wilt and death for native elm species all over the country, spreading from tree to tree through root grafts ...

RALEIGH, N.C. (WTVD) -- An invasive insect that's originally from East Asia has arrived in North Carolina, according to researchers at NC State. The elm zigzag sawfly, or Aproceros leucopoda, first ...

More than 70 years after Dutch elm disease began to wipe out 90 percent of the magnificent American elms that lined the streets of so many cities and towns, a handful of resistant varieties are ...

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 ...