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 ...

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

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Conifer forests across Europe are under siege from a tiny threat ...

Clockwise from top left: (1) Two lodgepole pines growing side-by-side with notably different bark textures, (2) a rough-barked limber pine that has been attacked by bark beetles, (3) a limber pine ...

While bark beetles have been slowly infesting trees in Aspen, winter won’t offer any respite. Aspen is currently home to the Douglas-fir beetle, the spruce beetle, the mountain pine beetle, Ips ...

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, ...

CLAUSTHAL-ZELLERFELD, Germany (AP) — Nestled in the spruce trees in the Harz mountains of northern Germany is a bark-eating pest not much bigger than a sesame seed. Known as “book printers” for the ...

Louisiana House lawmakers are convening an emergency panel to deal with widespread beetle attacks on pine trees across the state and the public safety concern posed by the problem. It’s not the ...