Trees

President Donald Trump says a tree that’s nearly two centuries old will be removed from the White House grounds because it’s deteriorating.

Oregon received more than $58 million in federal grants to help plant and maintain trees, but much of those funds have not been reimbursed.

Christmas trees are big business out West, but a hotter climate means challenges for tree growers.

Multiple people died in January when severe winds and large amounts of ice knocked over trees across the Willamette Valley.

This summer, the invasive emerald ash borer beetle was found in four Oregon counties. So far, none have been detected in Oregon State Parks, and the parks department wants to keep it that way for as long as possible.

The metallic-green beetle has made its way into Marion, Yamhill and Clackamas counties — miles away from the previously known infestations in Washington County.

Two new pests in the Willamette Valley could decimate trees and worsen the 'urban heat island' effect that makes some neighborhoods hotter than others

The proposal, presented in a draft environmental analysis on Friday, outlines ways national forests should prioritize preserving old-growth trees. It adds onto similar regulations for Pacific Northwest forests.

Don Kaczmarek, a forest geneticist for the Oregon Department of Forestry, joins us to talk about his work breeding trees, and producing seeds for the state’s forests and seed banks.

Douglas fir trees around Ashland are dying in the thousands. It’s one example of how our changing climate is affecting forests in the region.