1. Department of Forest Ecosystems Protection University of Agriculture in Kraków Kraków Poland
2. Department of Microbiology and Biomonitoring University of Agriculture in Kraków Kraków Poland
3. Forest Research Alice Holt Lodge Farnham UK
4. Phytophthora Research Centre Department of Forest Protection and Wildlife Management Faculty of Forestry and Wood Technology Mendel University in Brno Brno Czech Republic