1 Institute for Sustainable Plant Protection-C.N.R., Via Madonna del Piano, 10, 50019, Sesto fiorentino, Italy. [email protected].
2 US Forest Service Northern Research Station, Morgantown, WV, 26505, USA.
3 Institute for Sustainable Plant Protection-C.N.R., Via Madonna del Piano, 10, 50019, Sesto fiorentino, Italy.
4 Department of Microbiology and Plant Pathology, Forestry and Αgricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa.
5 Department of Plant and Soil Science, Institute of Biological and Environmental Sciences, University of Aberdeen, Cruickshank Building, Aberdeen, AB24 3UU, UK.