1. Agricultural Research Council - Plant Protection Research Institute (ARC-PPRI); Private Bag X5017; Vredenburg Campus Stellenbosch 7599 South Africa
2. Department of Conservation Ecology and Entomology; Faculty of AgriSciences; Stellenbosch University; Private Bag X1; Matieland 7602 South Africa
3. South African Sugarcane Research Institute; 170 Flanders Drive, Mt Edgecombe Durban 4300 South Africa