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 ...

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 ...

The classic and trusted book “Fifty Common Trees of Indiana” by T.E. Shaw was published in 1956 as a user-friendly guide to local species. Nearly 70 years later, the publication has been updated ...

Purdue Landscape Report: Pruning is an important maintenance practice on trees that is discussed a great deal. An essential part of making the pruning cut properly is the ability to identify the parts ...

It is always a pleasure to spend a few hours with an excellent teacher. I had that opportunity a few weeks ago with John Sly, who was leading a Winter Tree Identification morning at the Buffalo ...

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 ...

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 emerald ash borer (Agrilus planipennis) has plagued native ash trees in Illinois and Iowa since 2006 and 2010, respectively. This pest was first introduced in 2002 around the Detroit area and ...

DALLAS — The winter freeze this February was a tough test for trees across North Texas, and we're still seeing the impact months later. If your trees appear to be dying now, there's a good chance it ...

HAMLIN TOWNSHIP, MI – Learn about the three Bs of wintertime tree identification during this guided walk at a Michigan state ...