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Don Becker/U.S. Geological Survey When a bark beetle outbreak started killing off decades-old pine trees in a research forest in western Montana, Forest Service researcher Sharon Hood made the best of ...
A study was made of the attacks and brood development of Ips calligraphus (Germ.), Ips grandicollis (Eichh.), and Ips avulsus (Eichh.) on a large lightning-struck pine tree to determine how these ...
The markings of the mountain pine beetle are unmistakable — twisted mazes of tracks winding through the wood just beneath the bark of a tree. Across the West, the squiggly lines have become a symbol ...
CHERRY HILLS VILLAGE, Colo. — A homeowner in Cherry Hills Village noticed that his 90-foot spruce tree wasn't looking so good this spring. By August, the tree was almost completely dead. Denver ...
In August of this year, three researchers made a stunning discovery: The world’s largest sugar pine, by volume, was in Yosemite National Park. The discovery marked the end of a four-decade journey, ...
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