Goetze: An interesting tree of our Rolling Plains region is native to Texas, New Mexico and Oklahoma and has close relatives ...

Without question or doubt, ashes rank as the most common and most abundant trees growing along our neighborhood streets and in our yards and parks. Elms rank much lower in abundance as street trees.

The destructive Emerald Ash Borer beetle has been increasing its range in the U.S. for decades. After being found near Forest Grove in 2022, it’s been confirmed in five Oregon counties, as of ...

In 2006, Kathleen Knight was walking through a forest in northwest Ohio. She's a researched ecologist with the U.S. Forest Service. All around her were big, beautiful ash trees, tall trunks with lush ...

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

SCOTLAND, Pa. (AP) — The eradication of ash trees from Pennsylvania’s landscape and forests got a public viewing last week. Crews felled large-diameter trees dating to the early days of the Scotland ...

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 million ...

This non-native beetle kills ash trees by feeding on the layer beneath the bark, cutting off water and nutrients. Approximately one-third of the trees in Fort Collins are ash trees, making the city's ...