1. Department of Agriculture, Land Reform and Rural Development Plant Health Diagnostic Services Stellenbosch South Africa
2. Centre for Invasion Biology, Department of Conservation Ecology and Entomology, Faculty of AgriSciences Stellenbosch University Stellenbosch South Africa
3. Centre for Invasion Biology, Department of Botany and Zoology Stellenbosch University Stellenbosch South Africa
4. South African National Biodiversity Institute, Kirstenbosch Research Centre Cape Town South Africa
5. Centre of Excellence for Biosecurity Risk Analysis, School of BioSciences The University of Melbourne Parkville Victoria Australia