OPB

Invasive emerald ash borer could wipe out Oregon’s ash trees. Here’s how you can help

There’s a tree killer on the loose in Oregon, and nobody knows how to stop it. An invasive green beetle called the emerald ash borer arrived in the Midwest from Asia, and it’s killed over 100 million ...
Portland Press Herald

Facing the devastation of its ash trees, Portland aims to diversify tree species

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OPB

State scientists are planting thousands of Oregon Ash trees in invasive beetle territory, hoping to find rare natural resistance

The destructive Emerald Ash Borer beetle has been increasing its range in the U.S. for decades. After being found near Forest Grove in 2022, it’s been confirmed in five Oregon counties, as of ...