Switzerland Launches Nationwide Campaign Against Invasive Japanese Beetle

Federal Office for Agriculture has launched a nationwide awareness campaign to stop the spread of the invasive Japanese Beetle, a destructive pest threatening Switzerland’s environment, agriculture, and biodiversity.

Swiss authorities are urging travelers returning from Ticino, parts of Valais and Graubünden, as well as northern regions of Italy, to carefully inspect vehicles, luggage, and equipment for the beetles before entering other parts of the country.

Experts warn that the Japanese beetle poses a major threat to more than 400 plant species. The invasive insect damages crops, flowers, fruit trees, lawns, and grasslands by attacking both leaves and root systems. Swiss agricultural officials say the pest could seriously impact farming and dairy production if it spreads further across the country.

The entire canton of Ticino has already been classified as an infested area. Authorities also detected infestations in parts of Valais, Graubünden, and even major northern cities such as Basel and Zurich during 2025.

Scientists say the beetles spread rapidly by attaching themselves to vehicles, freight shipments, and travel luggage, allowing them to move much faster than through natural migration alone.

Swiss authorities have now shifted their strategy from eradication to containment in heavily affected southern regions. Monitoring systems, insect traps, and inspection campaigns are being expanded to slow the beetle’s spread north of the Alps.

The Federal Office for Agriculture is asking the public to immediately report any suspected sightings to cantonal plant protection services. Travelers are also advised to capture and safely dispose of the insects if found.

Environmental experts say public cooperation will play a crucial role in protecting Switzerland’s ecosystems, agriculture, and green landscapes from one of Europe’s fastest-growing invasive species threats.