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.