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, ...

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 ...

Vast swathes of the country’s trees have been killed off by droughts and infestations, in a trend sweeping across Europe. A shift towards more biodiverse cultivation could offer answers ...

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 ...

In the Thuringian Forest or the Harz Mountains, dead spruce trees (Picea abies) dot the landscape like skeletons. Many have already fallen or been cut down. These dead trees serve as memorials to the ...

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 ...