Potato Cyst Nematodes (PCN), Globodera Rostochiensis and G. Pallida as a New Challenging Problem of Potato Production in Africa

Abstract Potato cyst nematode (PCN) Globodera rostochiensis and G. pallida have been highlighted as new challenging problems of potato production in Africa. This review traces the emergence and current status of PCN as a problem of potato production and available PCN management options for Africa. The review revealed G. rostochiensis as the most widespread PCN species reported in eight countries as compared to G. pallida only found in four countries. G. rostochiensis Ro1/4 and G. pallida Pa/2/3 were the only PCN pathotypes that have been reported in Africa. Different PCN control strategies which have been tested and recommended as suitable for managing PCN in Africa are reviewed. We recommend expanding PCN surveillance to other potato producing African countries, targeting PCN management based on the most widespread PCN species/pathotypes in Africa and integrated management using locally tested and available PCN control strategies.