Pretty in its own way, the Emerald Ash Borer doesn’t look that menacing. But it is an invasive wood-boring beetle that can ...

Portland is bracing for yet another threat to the city's greenery. The emerald ash borer, a half-inch-long metallic-green beetle, is expected to arrive in Portland soon. More than 95,000 trees are ...

South Portland workers will inventory all the ash trees on public property for signs of emerald ash borer damage before developing a plan to treat or remove impacted trees.

PORTLAND, Ore. (KOIN) – The City of Portland is taking steps to prepare for the invasive emerald ash borer despite no confirmation of it yet in Multnomah County. The bug has already been spotted ...

Two beetle species could threaten the ash and oak trees in that canopy if they take hold in the city. Like many cities, tree canopy cover isn’t spread equally through Portland.

Take Portland, Oregon, for example ... ash. City arborists planned for ash trees to make up a smaller percentage of their canopies than elms had. Still, they planted a lot of ash: an average of 20 ...

He said the trees on both sides of the creek showed strong signs of emerald ash borer infestation, with declining canopies and D-shaped exit holes where adults have tunneled out of the tree trunks.

At any rate, I dug the hole in the wrong place. It was 1981, as I recall. We weren’t moving very far, just down the street, in fact. And Connie’s parents had given us a sapling of a birch tree, one ...

This week, dozens of ash trees infested with the emerald ash borer beetle were removed from residential streets in Cornelius in an effort to slow the spread of the invasive insect that has killed ...

The City of Portland is taking steps to prepare for the invasive emerald ash borer despite no confirmation of it yet in Multnomah County.

The City of Portland is taking steps to prepare for the invasive emerald ash borer despite no confirmation of it yet in Multnomah County. Dangerous heat is coming to Oregon this weekend, and the ...