The spruce beetle, which has significantly damaged the Rio Grande National Forest, is rapidly making inroads into the San Juan National Forest. The U.S. Forest Service held a meeting this w ...

A new machine-learning system developed at the University of Alaska Fairbanks can automatically produce detailed maps from satellite data to show locations of likely beetle-killed spruce trees in ...

The spruce beetle is blamed for more tree mortality than any other pest. The total acreage impacted of spruce-fire forest impacted by spruce beetle since 2000 has reached 1.89 million acres of ...

In fact, Engelmann spruce and subalpine fir trees failed to recover in 74% of the 45 sites sampled. "Bark beetle outbreaks have been killing lots and lots of trees throughout the western United ...

Then their offspring — spruce beetle larvae — feed on the tree’s phloem tissue, the sometimes green, sappy layer just below that bark. It’s also the layer that takes nutrients around the tree.

Spruce beetle still most damaging forest pest in state, aerial work shows By DENNIS WEBB Dennis.Webb@gjsentinel.com Feb 18, 2021 Updated Mar 25, 2022 ...

DENVER (AP) — An annual aerial survey of forest health in Colorado shows the mountain pine beetle epidemic is slowing dramatically, but the spruce beetle outbreak is expanding, forest officials ...

A highly-contiguous genome assembly of the Eurasian spruce bark beetle, Ips typographus, provides insight into a major forest pest. Communications Biology, 2021; 4 (1) DOI: 10.1038/s42003-021-02602-3 ...

DENVER (KDVR) — For the ninth consecutive year, the spruce beetle remains the most damaging forest pest in Colorado. To the Colorado State Forest Service (CSFS), this isn’t a huge surprise. In ...

A survey by the U.S. Forest Service and Colorado State Forest Service shows the spruce-beetle outbreak grew to nearly 760 square miles in 2014, compared with fewer than 625 square miles in 2013.

"New way to spot beetle-killed spruce can help forest, wildfire managers." ScienceDaily. ScienceDaily, 12 June 2024. <www.sciencedaily.com / releases / 2024 / 06 / 240613001359.htm>.