How do you tell if an elm tree has Dutch elm disease? How do you know if an ash tree is succumbing to emerald ash borer? How do you know if your seemingly healthy tree is about to croak and collapse ...

American elms have been the victim of a decimating disease known as DED or Dutch Elm Disease. However, there are a few that linger and remain, gracing our city streets with their majestic arching form ...

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 ...

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 the old American elms along 17th Avenue ...

EGREMONT — Berkshire County's most photographed tree got a special injection Friday morning to protect it from Dutch elm disease. Early Friday, before the daily heat could set in, a crew from ...

OGDEN CANYON, Utah — A fungal tree disease, which has destroyed millions of trees in the United States, has been detected in Utah for the first time. “We were sick to our stomachs thinking about what ...

American elm trees (Ulmus americana) were once very common as forest and landscape trees in the eastern U.S. Their graceful vase shape and wide canopy made them especially popular for lining city ...