Alarm in the forest

They are often only a few millimeters in size, but the destructive power of some insects in the forest is immense. Every spring a race against time begins for foresters and scientists. This deals with the human view of the problem. Because ecology does not know any pests.

Text: Kristin Kasten

The dead spruce are close. Her needles have long since fallen to the ground. Where there was once a lively green, dead trunks protrude today like warning fingers. They are crossed by countless bark beetles, such as scars of a long, bitter battle. The gnarled silhouettes of the trees shape entire landscapes. Around 80 percent of the spruces have died in the Harz in recent years. In the Sauerland, the Thuringian Forest, in parts of the Ore Mountains and the Bavarian Forest, the bark beetle has left countless slopes and forest sections with bare, dead trees.

How could it get that far? A look into the past

Alarm in the forest

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