However, almost all mature American elm trees have been killed in the last 50 years by Dutch elm disease, which is caused by a fungus, Ophiostoma novo-ulmi, introduced from Asia. Elm bark beetles ...

including the infamous Dutch elm disease which has devastated elm populations. Moreover, the act of pruning trees is not ...

A massive American elm tree that stood for generations on the lawn of the First Presbyterian Church 1793 in Washington took ...

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 ...

An area on the outside of a tree trunk that appears to be stained white or looks wet during summer is likely bacterial ...

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, ...

The century-old elm tree at the iconic Tavern on the Green restaurant will be removed after the Parks Department determined ...

The Beauly elm has been laser-scanned to create digital images of the tree What is believed to be Europe's oldest elm tree has succumbed to Dutch Elm Disease and is dying, say experts. The wych ...

Aug 26, 2021 Aug 26, 2021 Updated Jun 6, 2022 For decades, the city's forestry workers battled Dutch elm disease with projects to spraying healthy trees and removing dead or diseased trees.