1. Invasive Species Unit; Service Public de Wallonie; Gembloux Belgium
2. University of Sassari; Sassari Italy
3. Agroscope Institute for Sustainability Sciences; Zurich Switzerland
4. NERC Centre for Ecology and Hydrology; Edinburgh UK
5. Ministry of Agriculture; National Plant Protection Organization; Montpellier Cedex 2 France
6. Anses, Laboratoire de la Santé des Végétaux; Unité Entomologie et Plantes Invasives; Montferrier-sur-Lez Cedex France
7. Julius Kühn Institut (JKI); Federal Research Centre for Cultivated Plants; Institute for National and International Plant Health; Braunschweig Germany
8. National Plant Protection Organization; Wageningen The Netherlands
9. European and Mediterranean Plant Protection Organization; Paris France