A survey was conducted to assess the prevalence, incidence and occurrence of Meloidogyne spp. and Ralstonia solanacearum (RS) disease complex on potatoes. A total 92 tubers and 92 soil samples were collected from 92 fields. Two species of root-knot nematodes, Meloidogyne incognita (MI) and M.javanica (MJ), and a bacterial isolate of RS were identified alone or in mixed populations. The highestprevalence of the Meloidogyne spp. and RS disease complex was 87% at Kersa. The highest incidence ofthe disease complex was 70% at Kersa and Chiro. In the tuber samples, the occurrence of the MI, MJ andRS disease complex achieved the highest mean value of 84.6% at Kersa. Farmers’ awareness about thesepathogens seems to be good. The study confirmed co-occurrence of the Meloidogyne spp. and RS in asingle host and it indicates the need to examine the importance of these pathogens.