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Ophraella communa, the ragweed leaf beetle, has successfully landed in Europe: fortunate coincidence or threat?

Müller-Schärer, Heinz ; Lommen, Suzanne T. E. ; Rossinelli, M. ; Bonini, M. ; Boriani, M. ; Bosio, G. ; Schaffner, Urs

In: Weed Research, 2014, vol. 54, no. 2, p. 109–119

We report the occurrence of the North American ragweed leaf beetle Ophraella communa in Europe. During our surveys to monitor populations of the invasive alien plant Ambrosia artemisiifolia in Europe, we found the beetle south of the Alps, in more than 130 sites in southern Switzerland (Ticino) and northern Italy (Lombardia, Piemonte and Emilia-Romagna). At sites where O. communa was present, up...