The 36 trees planted last week at Boutwells Landing senior living community in Oak Park Heights have a big job: To help revitalize the state’s elm population. The American elm trees, each about 2 ...

To walk down a street in a town like Midland, Mich., these days is to witness mass carnage — ash trees, long a favorite of city arborists for their tall silhouettes and abundant foliage, have been cut ...

TANNERSVILLE — Marc Wolf steps off a trail at the Mountaintop Arboretum to examine a beech tree with mottled, bumpy bark. “This is pretty typical of beech bark disease,” he said. “Beech trees would ...

But there’s hope, and that’s where Holden Arboretum is playing an important role, whether it’s researching spread of the disease, experimenting with insecticides, or trying to clone trees that are ...

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 landscape. And ...

An emerald ash borer larva chews through the cambium layer of an infested ash tree in Armstrong, located in Emmet County. A buildup of feeding tunnels cut off the vascular or “plumbing system" of a ...

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 trees' ...