They will grow to a similar size, shape and crown size as an ash tree, providing beautiful blossom in spring and vibrant ...

Sawing through a century-old ash tree led to an astonishing discovery hidden within its core. Beneath the aged bark and dense rings, something completely unexpected emerged, leaving everyone in awe.

There are several insects, diseases and environmental conditions that can cause ash tree mortality. Some of the signs of Emerald Ash Borer (EAB) infestation include tree limb dieback followed by ...

Emerald ash borer (EAB), the most destructive forest pest to enter North America has left hundreds of millions of dead ash trees in its wake. Although this pest has been found throughout our state, ...

Credit: Katja Schulz/Creative Commons In 2009, an invasive tree pest was discovered on an ash tree in St. Paul. This past fall, 15 years later, the city cut down its last ash tree. While St ...

In the decades since, the wood-boring beetle has spread east and west across the U.S. and Canada, killing tens of millions of ash trees, causing one of the costliest forest insect invasions to date.