It isn’t exactly the wave that enveloped the United States in 1964, but 60 years later, beetles are still making a serious ...

The state faces a growing threat from nonnative plants and insects that are reshaping its landscapes. Experts urge early ...

AES seeks to raise electricity bills by more than 13 percent. They say tree trimming, an expensive and critical part of ...

Just outside Cottage Grove at the U.S. Department of Agriculture’s Dorena Research Center, scientists are playing a numbers ...

Some bugs are beneficial, but others can wreak havoc on your local ecosystem. Know the difference and brush up on your identification with this handy guide.

Spotty leaves, cracked trunks, mushroom invasions ... Two certified arborists explain how to best take care of your trees.

YEAH, THIS STUMP BEHIND ME WAS ONCE A TOWERING TREE, AND IT’S ONE OF MANY THAT EVERSOURCE IS WORKING TO BRING DOWN ON THIS ROAD TODAY, BECAUSE THEY ALL GOT ONE THING IN COMMON. THEY’RE ALL ASH TREES.

Emerald ash borer, an invasive beetle that kills ash trees, was detected in Portland this summer, resulting in a quarantine ...

By Alby Thoumsin  In 2002 in Michigan, many ash (Fraxinus sp.) trees started to show obvious signs of decline, and after ...

An invasive, tree-killing pest has made its way to Portland, spelling trouble for the many native ash trees that cool ...

The Oroville Council discussed the issue of two trees in the sidewalk in front of the old art gallery at 1412 Main.

The discovery puts all of Multnomah County into a quarantine zone. It’s the fifth county to be quarantined in Oregon.