1. Agricultural Research Council, Plant Health and Protection (ARC-PHP), Private Bag X134, Pretoria 0121, South Africa
2. Department of Plant and Soil Sciences, Faculty of Science, Engineering and Agriculture, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa
3. Centre of Excellence in Agri-Food Systems and Nutrition, Eduardo Mondlane University, 5th Floor, Rectory Building, 25th June Square, Maputo 1100, Mozambique
4. Faculty of Agronomy and Forestry Engineering, Eduardo Mondlane University, Julius Nyerere Avenue, Maputo 1100, Mozambique
5. Department of Biochemistry and Microbiology, Faculty of Science, Engineering and Agriculture, University of Venda, Private Bag X5050, Thohoyandou 0950, South Africa