Sprays of white blossoms in spring, dappled shade in summer, blazing foliage in fall, and an animal habitat year-round -- these are some of the gifts ash trees offer. Ash trees (Fraxinus spp.) ...

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 ...

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 ...