An invasive beetle species wreaking havoc on trees in Prince George?s County could spread to other parts of Maryland, officials said. The emerald ash borer kills ash trees by feasting on their inner ...

The Common Ash tree is one of the most recognizable species in the UK, reaching heights of up to 30 meters. In this video, we ...

Cornell is at the forefront of determining how "invisibility cloaks" and walls of protection may give ash trees hope of revival.

PORTLAND, Ore. (KOIN) – The dreaded emerald ash borer has made its way into Portland, and it poses a threat to every ash tree in the city. The invasive beetle from East Asia has already had a ...

Oregon forestry officials have collected over 900,000 seeds from a native tree species, in an effort to protect against an invasive insect. After collection, Emerald Ash seeds can last 60 to 70 years ...

Jules Ginenthal, Natural Areas Stewardship coordinator at Cornell Botanical Gardens, plants a grafted lingering ash tree ...

Traps are going up at Tulsa parks in an effort to protect Oklahoma’s ash tree population from an invasive species. As people hike or bike at Turkey Mountain, Tulsa River Parks Authority said they may ...

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 Signs of beech bark disease on the bark of ...