One of the largest old elm trees in Toronto — possibly in all of southern Ontario — is on its last legs. But as the city ...

These 5 tree species are dying. Scientists are racing to save them. Invasives have largely wiped out the American chestnut and elm, caused “hell” with the beech, and are now wreaking havoc on ...

Dutch elm disease is now found throughout the United States except in areas of the Southwest that have limited elm populations, according to the U.S. Department of Agriculture. Native American ...

Some tree diseases, if severe enough, can take a devastating toll on forest tree communities, as well as single species. ... (DED) primarily affects American and European species of elm.

Brown University’s 155-acre campus is home to thousands of trees and is recognized for its impressive American elm collection. Last year, the campus lost an iconic community fixture, an elm tree ...

Purdue Landscape Report: We have received a few elm tree samples this year with a disease we do not often see, but which is relatively common: black spot of elm.This disease, also called elm ...

For decades, the American elm population has dwindled, and one of its greatest threats is the deadly Dutch elm disease, which has taken its toll on Brown’s campus, too. The tree removal ...

Joel Harrison-Off, the acting supervisor of the city’s forest healthcare and management, said the tree is one of the largest native elm trees in Toronto and was one of the few survivors of Dutch Elm ...

This elm, known as "Rosa's tree" or the "Burrell elm," is pictured here before losing many of its branches. It is slated to be removed in early August from its location at 1111 S.W. 10th Avenue.

WISCONSIN (WQOW) - A new invasive species is making its way through the Badger State. The Wisconsin DNR said the elm zigzag sawfly has been detected in at least 17 counties. It's a caterpillar native ...

Britain lost 25 million of its 'graceful giants', the elm tree — but there's finally real hope that they are coming back. Once the hallmark of a rural idyll, our English elms were almost eradicated by ...