Previous research under Project R5310 developed a biological control agent (BCA) against bacterial wilt disease of potato. The BCA was a genetically modified non-pathogenic mutant of the wild type (WT) organism. This project aimed to further the outputs of R5310 by establishing the agricultural potential of the BCA in Kenya and identifying a ‘window’ within farmer systems for its application. The applicability of these technologies to potato cropping in other African countries and Pakistan were assessed.