As Oregon gets hotter and drier due to climate change, tree-killing invasive pests that prefer warmer temperatures are thriving — endangering Sitka spruce along the coast, firs in the mountains and ...

(WSAW) - The Wisconsin Department of Natural Resources is asking landowners to be aware of an invasive species that has been detected in Michigan. Hemlock woolly adelgid target hemlock and fir trees.

Spring has started with some good weather. Are you out gardening? Do you have questions? For answers, turn to Ask an Expert, an online question-and-answer tool from Oregon State University’s Extension ...

PORTLAND — Fir trees in Oregon and Washington died in record-breaking numbers in 2022, according to as-yet-unpublished research conducted by the U.S. Forest Service. Called “Firmageddon” by ...

Decking a live fir tree with lights and ornaments is an old Christmas tradition. But like any other crop, Christmas trees are already having to deal with the effects of a changing climate — and those ...

SHERWOOD, Ore. — Deep inside a forest in Oregon's Willamette Valley stands a dead "Tree of Life." Its foliage, normally soft and green, is tough and brown or missing altogether. Nonetheless, the ...

There’s concerns about an invasive insect targeting Michigan’s firs — including Christmas trees. That could have impacts on the state's forests and $45 million Christmas tree industry. Invasive pests ...

Add Yahoo as a preferred source to see more of our stories on Google. Drought and insects have killed an unprecedented number of Oregon’s Douglas fir trees during the last decade, costing billions in ...

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