Interactive map of the Japanese beetle's invasion in Continental Europe (2015-2024)

The following map shows the dynamics of the ongoing invasion of the Japanese beetle in Continental Europe. This current version (V4, February 2025) includes regions Piedmont, Lombardy, Emilia-Romagna, Valle Aosta, Friuli-Venezia-Giulia, Veneto and Liguria (Italy) and Ticino, Valais and Zurich (Switzerland) over the period 2015-2024.

The map captures the dynamics of the invasion at the epidemiological scale of the municipality; it has been generated from the official bulletins of the regions concerned, which report both infested and buffer municipalities, and from the geographical information available on official geoportals.

The map can be viewed directly on our website below.

All figures and maps, as well as data and script (written in the R programming environment) are freely available, see:

Poggi, Sylvain; Borner, Leyli, Roche, Julien; Tayeh, Christine; Martinetti, Davide (2025). Biological invasion of the Japanese beetle in Continental Europe at a glance. https://doi.org/10.57745/R18NGL, Recherche Data Gouv, V4

Interactive map: