1. Department of Life Sciences and Systems Biology, University of Torino, Via Accademia Albertina, Torino, Italy
2. Czech University of Life Sciences Prague, Faculty of Forestry and Wood Sciences, Department of Forest Protection and Entomology, Kamýcká, Praha 6-Suchdol, Czech Republic
3. Institute for Plant Protection and Environment, Banatska, Zemun, Serbia
4. Department of Agricultural, Forest and Food Sciences (DISAFA), University of Torino, Largo Paolo Braccini, Grugliasco (TO), Italy