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 ...

As Colorado experiences its signature whiplash weather, arborists are warning that stressed trees are more vulnerable to pests and diseases. Peel back the bark, and you may find a predator in your ...

Bark beetles are only about the size of a grain of rice. But for such tiny critters, they can take a big bite out of the forest. There are more than 100 species of bark beetles in Idaho, said Gina ...

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, ...

Louisiana House lawmakers are convening an emergency panel to deal with an infestation of beetles attacking pine trees across the state and posing a public safety concern. Above, piñon ips bark ...

It's the most common tree in Douglas County, but it's also under threat from the mountain pine beetle. As Colorado Gov. Jared ...