Bark beetles moving between trees routinely carry two fungi that are responsible for the Dutch elm tree disease outbreak.

U.S. Army Corps of Engineers Forester Andy Meier inspects an elm tree on the Mississippi River for possible signs of Dutch elm disease, which has wiped out many of the elms in the river's floodplain ...

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 ...

In early July, Denver’s forestry team discovered that Dutch elm disease – a fungal tree killer that targets American elms – was back after a twelve-year absence from the city. While the team is hoping ...

This article is brought to you by our exclusive subscriber partnership with our sister title USA Today, and has been written by our American colleagues. It does not necessarily reflect the view of The ...

Getting your Trinity Audio player ready... Dutch elm disease has been reported back in Denver after more than a decade of its absence. The Denver forestry office discovered the disease last month in ...