Kris Dullmer of Ash Tree Solutions, right, injects an insecticide into an ash tree named Big Jim in the Catamount Community Forest to combat the emerald ash borer in Williston on Tuesday, June 25.

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 ...

The invasive emerald ash borer, native to northeast Asia, has spread to 37 states over the past quarter century, killing nearly all of the ash trees it infests. But in Maine, a coalition of ...

After being found last month in Dallas' Great Trinity Forest, the invasive emerald ash borer beetle is now also confirmed to be in four more North Texas counties. The Texas A&M Forest Service ...

Add Yahoo as a preferred source to see more of our stories on Google. The emerald ash borer (Agrilus planipennis) was first identified as an invasive species in the US in 2002. It is now found in over ...

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 ...

James E. Zablotny/USDA APHIS This week, crews removed dozens of infested ash trees in Forest Grove as part of a state plan to slow the spread of the destructive pest. This month, state agencies ...

The North Carolina Forest Service says an invasive beetle that destroys ash trees continues to spread across the state. The agency said it recently found the emerald ash borer in five more counties in ...

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 ...

A small beetle is responsible for the death and decline of billions of ash trees in North America, and the race is on to stop it from causing further damage. The USDA is hoping to spread the word so ...