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 ...

But by the 1960s, the it was flying helicopters over its streets and dumping DDT onto its trees to save what few elms remained. What happened? Dutch Elm Disease, a plague which would eventually wipe ...

Also known as white elm, soft elm, and water elm, American elm is a medium-sized tree with a distinct vase-like form that has long been esteemed for its elegance. Today, however, this species is ...

Browse 20+ drawing of a american elm tree stock illustrations and vector graphics available royalty-free, or start a new search to explore more great stock images and vector art. Elms, wood engravings ...

Emerald ash borer, pinewood nematode, and Dutch elm disease are all major horticultural issues that are heavily instigated by ...

In 2006, another American elm located behind the former Osram ... Each year, Dincher’s staff inoculates the tree against disease, removes deadwood and replaces worn cables, which equalize ...

Orange spray paint signifies death for some stately elm trees on the University campus this summer. The cause is Dutch elm disease, an ailment with a notorious history in the Twin Cities. In 1977, ...

"It’s also highly resistant to Dutch elm disease," Lonnee says. Gaspari says the Hackberry (Celtis occidentalis) tree is ...

The offensive against Dutch elm disease is paying off after the invasive fungus that kills elm trees was detected for the first time in Edmonton in August. The city expected to fight the disease ...

The offensive against Dutch elm disease is paying off after the invasive fungus that kills elm trees was detected for the first time in Edmonton in August. The city expected to fight the disease for ...