Spruce bark beetles don’t just tolerate their host tree’s chemical defenses—they actively reshape them into stronger antifungal protections. These stolen defenses help shield the beetles from ...

A new machine-learning system can automatically produce detailed maps from satellite data to show locations of likely beetle-killed spruce trees in Alaska, even in forests of low and moderate ...

Bark beetle-infested spruce trees begin to dry out already before any visible signs of tree mortality appear, a recent study from the University of Eastern Finland shows. Led by Dr Samuli Junttila, ...

Spruce bark is rich in phenolic compounds that protect trees from pathogenic fungi. A research team at the Max Planck Institute for Chemical Ecology in Jena investigated how these plant defenses ...

The bark beetles are here. Actually, the bark beetles that kill mountain trees are always around, San Juan National Forest representatives told a small group of Vallecito residents Tuesday evening.

The Town of Vail will begin the removal of approximately 26 spruce trees in the vicinity of the Grand Hyatt in Cascade Village starting on Monday, Oct. 7. The dead and dying trees have been identified ...

Planting of new spruce trees is being banned in parts of East Anglia and South East England as part of new measures to limit the impact of an invasive beetle. The Ips typographus, or larger ...

Spruce bark beetle in a Norway spruce tree, infected with fungus (Image Credit: Benjamin Weiss, Max Planck Institute for Chemical Ecology) Far from being defenceless, plants have acquired all kinds of ...

CHEYENNE – Crews from the city of Cheyenne Urban Forestry Division will begin spraying spruce trees the week of April 7 to prevent ips beetle infestation at several city parks and city-owned ...

Although the U.S. Forest Service is still dealing with the mountain pine beetle, it appears to be retreating; it’s eating itself out of house and home by killing so many trees. But, as CPR’s Lesley ...

Adult spruce bark beetles in their galleries in the bark of a Norway spruce tree. The beetle in the middle is infected with the fungus Beauveria bassiana. Spruce bark is rich in phenolic compounds ...