1. Agricultural Research Council, Plant Protection Research Institute, Hilton, South Africa
2. School of Life Sciences, University of KwaZulu-Natal, Scottsville, South Africa
3. Department of Animal and Environmental Biology, University of Benin, Benin City, Nigeria
4. Department of Zoology and Entomology, University of Fort Hare, Alice, South Africa
5. KwaZulu-Natal Department of Agriculture and Rural Development, Pietermaritzburg