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

Dutch elm disease (DED) remains one of the most pressing challenges for elm populations across Europe and North America. Contemporary research has evolved from early descriptions of pathogen virulence ...

The 36 trees planted last week at Boutwells Landing senior living community in Oak Park Heights have a big job: To help revitalize the state’s elm population. The American elm trees, each about 2 ...

The City of Edmonton has confirmed that an elm tree removed in October from the Glengarry neighbourhood has tested positive for Dutch elm disease (DED), the second confirmed case in 2025. City ...

The situation was bleak two years ago when an upsurge in Dutch elm disease threatened to sweep through St. Helena's historic Tunnel of the Elms on Highway 29. Trees were succumbing left and right.

Elm trees have a significant presence around Napa Valley even though their number has been decimated by Dutch elm disease, a fungal infection that has killed millions of elms across North America. The ...

Ceratocystis ulmi, better known as Dutch elm disease, has become a major problem in cities throughout the country and Winona is taking measures to head off the disease before it reaches epidemic ...

A telltale sign of Dutch elm disease is yellow leaves on a dying branch. American elms that show signs of the disease are tested by city of Bismarck arborists, who continue to watch the trees to ...