1. Centre for Agriculture and Biosciences International (CABI), Delémont, Switzerland;
2. Centre for Agriculture and Biosciences International (CABI), Nairobi, Kenya;
3. Centre for Agriculture and Biosciences International (CABI), Egham, UK;
4. Ministry of Food and Agriculture, Plant Protection and Regulatory Services Directorate, Accra, Ghana;
5. Centre for Agriculture and Biosciences International (CABI), CSIR Campus, Accra, Ghana;
6. Centre for Agriculture and Biosciences International (CABI), Lusaka, Zambia;
7. Zambia Agriculture Research Institute (ZARI), Mount Makulu Research Station, Chilanga, Zambia