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Swiss Forest Protection (WSS)

We have an overview of the phytosanitary situation in Swiss forests at all times.


The Swiss forest Protection...

collaborates with the cantonal forestry services to collect data on the occurrence and extent of biotic and abiotic stresses in the forest, to provide information on the current phytosanitary situation in the forest, to advise the people concerned on questions of phytosanitary protection in the forest and to participate in the continuing education of the forestry services, the green sector, students and other specialists.



As the coordination of activities at the international level is becoming increasingly important, we also maintainan exchange of information with our colleagues in Switzerland and abroad. This enables us to act as an information platform and interface between research and practice.

We see ourselves first and foremost as service providers.


Since WSS offers its services (diagnostics and advice) only for Switzerland, the remaining pages of this website are only available in the official Swiss languages German, French and Italian.


Swiss forest protection - news

Borkenkäfer, eingeschleppte Pilze und Wildverbiss: Der Waldschutzüberblick 2020 informiert über die Herausforderungen für Schweizer Wälder.

Low-branched  fallen trees, now heavily decomposed, in a part of the Bödmerenwald where Storm Vivian brought down many trees in 1990.

The Bödmerenwald near Muotathal has seen a significant increase in wood volume, dead wood and small habitats for insects and fungi.

Trees grow mainly at night, because dry air inhibits cell growth in day time, even in moist soil conditions, a new WSL study found out.

Nature against stress, medicine from the cold and the forest facing new challenges: The new issue of DIAGONAL is all about health.