1. Department of Microbiology and Plant Pathology Tree Protection Co‐operative Programme (TPCP) Forestry and Agricultural Biotechnology Institute (FABI) University of Pretoria Private Bag X20 Pretoria 0028 South Africa
2. Department of Agriculture and Forestry Queensland Plant Pathology Herbarium GPO Box 267 Brisbane Qld 4001 Australia
3. Department of Genetics Forestry and Agricultural Biotechnology Institute (FABI) University of Pretoria Private bag X20 Pretoria 0028 South Africa
4. Department of Plant Sciences Tree Protection Co‐operative Programme (TPCP) Forestry and Agricultural Biotechnology Institute (FABI) University of Pretoria Private Bag X20 Pretoria 0028 South Africa