Then there is the fungus, Beauveria bassiana. This fungus is neither the tree’s nor the beetle’s friend; as a pathogenic ...

Spruce bark beetles hijack their host tree’s chemical defenses, transforming them into potent weapons against fungal threats.

Learn more about the chemical arms race between a fungus, a tree, and a beetle.

Spruce bark is rich in phenolic compounds that protect trees from pathogenic fungi. A research team at the Max Planck ...

Bark beetles convert spruce tree defenses into more potent antimicrobials to protect themselves, but a fungus can neutralize ...

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, ...

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 ...

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 ...

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.

Spruce bark beetles use the plant defense compounds in spruce bark as a protective mechanism. After feeding, they metabolize ...

The study area is centered on the Susitna Lowlands in SC Alaska, a mosaic of mixed forest and wetlands, appearing in green and brown in the 2013–2015 Landsat −8 composite (a), respectively. Credit: ...