In the 1960s, American cities and towns began planting ash trees to replace those killed off by the Dutch-elm scourge.

As time goes on, however, the tree will continue to lose canopy, experience limb death, and often have large chunks of bark detach. Unprotected trees will typically die within 2 to 5 years of ...

Mark Reiland traced his finger along a groove in the bark of an ash tree on the corner of Spring and High streets in Portland. The tree was bushy near its patterned trunk, but higher up its ...

CSFS/Courtesy photo The Emerald Ash Borer, an invasive species of bark beetle that was discovered in Colorado in 2013 and has been expanding through the state, has the potential to damage the Colorado ...

The insect is devastating to all species of ash trees. It bores its way into the bark of the tree, where it lays eggs. The beetle’s larvae eventually feed on the tree’s water-conducting tissue ...

Ash trees were planted in many urban forests in Minnesota to replace elm trees decimated by Dutch elm disease, Venette said. “It’s all part of growing a more diversified urban forest,” he said.

Invasives have largely wiped out the American chestnut and elm, caused “hell” with the beech, and are now wreaking havoc on the eastern hemlock and white ash.

WILLISTON - The small ash tree to the right of Best Buy's front doors in Williston is now only a skeleton. Pealed back bark reveals a maze of squiggly lines, a signature calling card from ash ...