Affiliation: | Natural Resources Institute, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK;;Plant Protection Division, PO Box 1062, Zanzibar, Tanzania;;Asian Vegetable Research and Development Center –Africa Regional Program, PO Box 10, Duluti, Arusha, Tanzania;and;Horti-Tengeru, PO Box 1253, Arusha, Tanzania |