Emerald ash borer is an invasive pest that causes grave damage to ash trees. A certified arborist shares how to spot the ...

Once an ash tree is showing 50% loss of leaf cover it will not recover and the possible extent of decay makes it a potential hazard. Some trees will present with large bark lesions near the base.

The Denver Office of the City Forester is looking for people to sign up for its free tree-planting program called Be a Smart ...

Rangers at Ickworth Estate have planted 1,300 trees after the site lost a number of trees due to the ash dieback fungus.