A hidden chemical war is unfolding inside spruce trees | ScienceDaily

by | Mar 12, 2026 | Tree Service

— Bogan Tree Service. Tree Care & Tree Removal Services, Tree Pruning, Tree Cutting Service, Tree Service Company, Tree Trimming Companies, Tree Removal Company, Tree Stump Removal Service, Tree Companies, Tree Cut Service, Trees Removal Services, Tree Cutter Company

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 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 infection, but one fungus has evolved a way to neutralize them. By detoxifying the beetles’ chemical armor, the fungus can successfully invade and kill its host. The discovery sheds light on an unseen forest arms race and may improve biological pest control.

Source: A hidden chemical war is unfolding inside spruce trees | ScienceDaily

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