Invasive beetle known for wiping out ash trees found in Oregon: "The most destructive and costliest forest pest ever to invade North America"

Forestry officials in Oregon said Monday that an invasive beetle known for decimating ash trees throughout North America and Europe was recently discovered west of Portland.

The Oregon Department of Forestry said the iridescent green emerald ash borer (EAB) is considered the most destructive forest pest in North America and had been detected in 34 other states before it was discovered in Forest Grove on June 30.

Officials said it's the first discovery of the insect on the West Coast. The beetle is believed to have come from Asia through Canada to the U.S. about 20 years ago.