CARBONDALE — Carl Meinecke sidles up to an ash tree and wraps a tape measure around the trunk, gathering both circumference and diameter in one move. “Diameter is 17.9 inches,” Carbondale ...

The benefits of these living ash trees easily justify the cost of monitoring them. We provide answers to common questions people have about the need for continued treatment. I have had a tree care ...

Next month, officials plan to treat healthy ash trees in Washington County with injections of the systemic insecticide emamectin benzoate. The city of Portland’s tree inventory has identified ...

More than 90% of all ash infested by the insect native to Asia eventually die, threatening to make the tree species functionally extinct in North America. In response, researchers are working to ...

Researchers studying ash trees in the western U.S. have discovered a set of genetic variations that could protect the species ...

Researchers estimate that a mature ash tree can die from a borer attack in about six years. This means some areas in the Midwest have been missing their trees for a while while others are just ...

There’s a tree killer on the loose in Oregon, and nobody knows how to stop it. An invasive green beetle called the emerald ash borer arrived in the Midwest from Asia, and it’s killed over 100 ...

An ash tree commonly refers to trees of the genus Fraxinus (from Latin "ash tree") in the olive family Oleaceae. The ashes are usually medium to large trees, mostly deciduous though a few ...

Online resources explain how to identify if a tree is an ash by looking at leaves, branches, buds and bark. So, the first step is figuring out what that behemoth in the backyard is. “If it is an ...

Property owners with trees infested with the emerald ash borer may receive a letter saying they must get rid of the tree if it has the potential to affect the public right of way. Residents of ...

Identification Tips: Ash trees have no nuts but clusters of slender seeds with a long wing. There will be no nut husks under the tree. Check for an opposite leaf arrangement to eliminate ...

Years later, a tree collapsed onto College Avenue, tearing down the power lines connected to her home. In 2023, a 60-foot ash tree crashed through the roof of her garage, leaving her with a ...