Two new pests in the Willamette Valley could decimate trees and worsen the ‘urban heat island’ effect that makes some neighborhoods hotter than others For years, Portland area politicians have ...

Take a stroll through your community and you'll likely pass beneath the canopy of an ash tree or marvel at these trees that bring color to your autumn garden. Ash trees, commonly planted on city ...

In 2018, the penny-sized emerald ash borer was first detected in Maine — over 15 years after it was first identified in the ...

As Oregon gets hotter and drier due to climate change, tree-killing invasive pests that prefer warmer temperatures are thriving — endangering Sitka spruce along the coast, firs in the mountains and ...

The emerald ash borer, a tiny yet destructive invasive beetle, has been confirmed in Aurora. That's prompting officials in the Colorado city to remove or treat infected trees and encourage residents ...

GLOUCESTER COUNTY, Va. (WRIC) — The emerald ash borer, a metallic-green invasive insect, have spread throughout the state over the past 15 years, killing native ash trees in its wake, but efforts are ...

EAST PROVIDENCE, R.I. (WPRI) — The city of East Providence is taking proactive steps to save its tree canopy from an invasive insect species. City officials told 12 News a survey of city-owned ash ...

Here’s how to identify these invasive species—and what to do about them.

Experts warn that the Asian Longhorned Beetle and other invasive species could cause significant damage to local hardwood ...

Add Yahoo as a preferred source to see more of our stories on Google. Trunk and branches of ash tree covered in green leaves - Damian Pawlos/Getty Images When you've visited a park or campground you ...

MANHATTAN, Kan. (KSNW) — A pest that last made a major appearance in Kansas nearly a decade ago is back — and it’s feasting on ash trees across the state. Kansas State University entomologist Raymond ...