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 ...

There are several signs that may indicate your ash tree has been infested: Branch dieback at the top of the tree Vertical splits in the bark Sprouting on the trunk and at the base of the tree ...

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 ...

Quick Take The emerald ash borer (Agrilus planipennis) was first identified as an invasive species in the US in 2002. It is ...

Emerald ash borer confirmed in Robertson County, Tennessee, threatens ash trees. Learn symptoms, prevention tips and how ...

Add Yahoo as a preferred source to see more of our stories on Google. The ash tree population of New York is at serious risk after state officials confirmed the presence of a destructive insect. An ...

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 ...

HOLYOKE — A small green beetle burrowing in the city’s ash trees is putting them in danger. Officials are actively combating the emerald ash borer, an invasive species. Sometimes trees can be treated, ...

PORTLAND, Ore. (KOIN) — Invasive emerald ash borer beetles were discovered in three more Oregon counties this summer, officials said. Emerald ash borers are small metallic-green beetles native 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 ...