An emerald ash borer larva chews through the cambium layer of an infested ash tree in Armstrong, located in Emmet County. A buildup of feeding tunnels cut off the vascular or “plumbing system" of a ...

In 2002 in Michigan, many ash (Fraxinus sp.) trees started to show obvious signs of decline, and after careful inspections, arborists and biologists soon discovered a pest unknown to the U.S. as the ...

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

The much-loved trees that have shaded the library's garden and downtown Water Street for decades are deteriorating and could ...

If you want your ash trees to stand a fighting chance against the emerald ash borer, now through mid-April is the time to treat your trees this invasive pest, say insect and tree experts for the ...

One of the most destructive invasive insects in the United States has been detected in three more Oregon counties this summer, which could be bad news for the state’s ash trees. Federal and state ...

The emerald ash borer, an invasive beetle that’s already killed millions of trees across the country, is spreading in Oregon. The beetle was first detected in Washington County, near Forest Grove, in ...

The Equinox Preservation Trust (EPT) has launched the “Protect the Preserve 2026” campaign to raise funds for projects to ...

MANKATO — Take a walk outside today. Look left, look right and then look up. What do you see? Or more importantly, what do you not see? A major urban forestry initiative is reshaping Mankato’s tree ...