Bark beetle-infested spruce trees begin to dry out already before any visible signs of tree mortality appear, according to a recent study from the University of Eastern Finland published in Trees ...

"The spruce bark beetle usually does not attack healthy trees but will do so when they become numerous enough. The more bark beetles in the landscape, the greater is the chance that they will kill ...

Even the few species that do kill trees tend to target highly stressed ... The pine beetle epidemic has peaked in Colorado, but attacks by spruce beetles—which also burrow through bark—are ...

Stemming the Southern pine beetle onslaught is one way to limit the amount of dead trees that lead to new growth and more ...

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.