1. National Research Council–Institute for Sustainable Plant Protection (CNR‐IPSP) Sesto Fiorentino Italy
2. Centre for Technology Transfer Fondazione Edmund Mach San Michele all'Adige Italy
3. Centre for Invasion Biology, Department of Botany & Zoology Stellenbosch University Stellenbosch South Africa
4. Department of Invasion Ecology, Institute of Botany The Czech Academy of Sciences Průhonice Czech Republic
5. US Forest Service Northern Research Station Morgantown WV
6. Faculty of Forestry and Wood Sciences Czech University of Life Sciences Prague Suchdol Czech Republic