1. Department of Conservation Ecology and Entomology; Stellenbosch University; Matieland South Africa
2. DST/NRF Centre of Excellence for Invasion Biology; Stellenbosch University; Matieland South Africa
3. Water Institute; Stellenbosch University; Stellenbosch South Africa
4. DST/NRF Centre of Excellence in Tree Health Biotechnology (CTHB); Forestry and Agricultural Biotechnology Institute (FABI); University of Pretoria; Pretoria South Africa