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.

Switzerland Launches Campaign to Stop Spread of Japanese Beetle

Switzerland has launched a nationwide awareness campaign to slow the spread of the invasive Japanese Beetle, which continues to threaten agriculture, plants, and ecosystems across several Swiss regions.

The Federal Office for Agriculture (FOAG) is asking travellers to carefully inspect their vehicles, luggage, and personal belongings when returning from affected regions in Switzerland and neighboring countries.

According to Swiss authorities, the Japanese beetle often spreads unnoticed through cars, trains, freight transport, and travel luggage. Infested areas currently include the entire canton of Ticino, parts of Graubünden and Valais, as well as northern Italian regions including Lombardy and Piedmont.

Swiss officials also reported major beetle infestations in the cantons of Basel and Zurich during 2025.

The awareness campaign will run across north-south transport routes, railway stations, freight terminals, tourist areas in Ticino, and online platforms. Authorities say public cooperation is now essential to slowing the insect’s spread.

Experts warn that while complete eradication is no longer possible in some affected regions, containment measures have successfully reduced the speed of expansion. Slowing the spread remains critical to protecting agricultural land and ecosystems north of the Alps where the beetle is still relatively rare.

The Japanese beetle is considered highly destructive because it feeds on hundreds of plant species, including crops, fruit trees, flowers, and grasslands.