Cone – 1.25”-1.75” long, pendulous and oblong, ranging from violet to blue/black when immature, and progressing to a nutmeg brown at maturity. Persistent for up to five years, and cycle between strong ...

It is killing forests filled with mature white spruce trees. The culprit is a tiny bug native to Alaska called the spruce bark beetle. The beetles have already devastated swaths of spruce forest ...