Dutch elm disease has been present in the United States since the 1920s, when it began its rapid spread across elm populations, killing most American elms. Every year the disease continues to spread ...

On the St. Paul campus of the University of Minnesota, rows of tiny elm trees sprout in a test field run by University researchers. These elms are a series of new trees cloned by the University that ...

In this tree identification episode, Purdue Extension forester Lenny Farlee will talk about how American elm leaves have jagged edges with a large tooth and then smaller teeth like edges on top of it.

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 ...

FARGO — Fargo city forester Scott Liudahl's job sometimes involves having to cut down trees, but no matter how many times it happens, it still bothers him. "I take it very personally, especially if ...

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 ...

Elm-lined streets were once ubiquitous in America. The trees’ success throwing beautiful, shady canopies over urban environments made them one of the most popular to plant in the country. Then a ...

The fall foliage season is sweeping through New Hampshire, causing residents and leaf-peepers to appreciate anew the forests in the state. The colors of the season are a function of forest health, and ...

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 ...