1. Department of Crop and Soil Sciences, Faculty of Agriculture, PMB, Kwame Nkrumah University of Science and Technology (KNUST), Mango Road, Kumasi, Ghana.
2. Department of Horticulture and Crop Production, School of Agriculture and Technology, University of Energy and Natural Resources (UENR), P.O. Box 214, Dormaa Campus, Sunyani, B/A, Ghana.
3. Department of Entomology, School of Biological Sciences, University of Nairobi, Main Campus, Nairobi, Kenya.