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Bark beetles are on the decline: new danger for the oak trees in the Harz!
Bark beetle populations have declined sharply in the Harz Mountains, but the oak jewel beetle is causing new problems.
Bark beetles are on the decline: new danger for the oak trees in the Harz!
Things are looking bleak for the trees in the Harz Mountains. While the bark beetle situation is increasingly on the rise, there is great concern for the oak trees. Grund für die positiven Nachrichten über die Borkenkäferplage ist die umfassende Abholzung der Fichten, der Hauptnahrungsquelle des Schädlinge. Therefore reported MDR that the forestry authorities do not expect any major problems with these beetles in the future. But once again forest managers are looking with concern at the oak jewel beetle, whose spread brings with it new challenges.
The persistent drought of recent years has taken a toll on the oak trees, making them more susceptible to beetle damage. The larvae of the oak beetle have been active for two years and live under the bark, thereby contributing to the death of the trees. And the forecasts are alarming: loud ZDF Experts see that spruce trees are massively affected by the bark beetle plague. This tree species has the highest death rate, which is already noticeable in the forests of Saxony-Anhalt.
Threat of climate change
Der Klimawandel spielt eine entscheidende Rolle in diesem Waldsterben. Rising temperatures and extreme weather conditions encourage pests to take over. Experts warn that almost half of the oak trees examined are already showing significant crown thinning. But it's not just oaks and spruces that are suffering; Other species such as beech and maple trees are also being decimated by various diseases and pests. CONVENTION points out that forests, once considered important carbon sinks, could become sources of CO2 if the climate crisis is not stopped.
Another alarming development is the beech complex disease, which occurs especially after periods of drought and severely affects the trees. Auch das Eschentriebsterben und die Rußrindenkrankheit bedrohen das Ökosystem. To counteract this trend, experts recommend converting them into mixed forests instead of pure stands. This approach could stabilize the ecosystem and make it more resilient to climatic changes.
Need for action
The current situation calls for immediate action. Der BUND fordert daher von der Bundesregierung, die Emissionen von Schadstoffen wie Stickstoff zu reduzieren und den Ausstieg aus fossilen Energien aktiv voranzutreiben. Forests are not only important for climate protection, but also for biodiversity. Forests provide habitat for numerous animal and plant species, which is why their preservation must be given the highest priority.
Time is running out. With a comprehensive ecological forest transition, the forests in Germany could not only be preserved, but also strengthened. This forest crisis makes it clear: something is going on. It is high time that we fundamentally rethink how we use natural resources and take proactive steps to ensure healthy forests.