Ajene, Inusa Jacob


A Review of the ‘Candidatus Liberibacter africanus’ Citrus Pathosystem in Africa

da Graça et al. (2022). Phytopathology® 112 (1)
Ca. Liberibacter africanus
It has been nearly 100 years since citrus growers in two distinct regions in the northern provinces of South Africa noticed unusual symptoms in their citrus trees, causing significant crop losses. They had no idea that these symptoms would later become part of an almost global pandemic of a disease called greening or huanglongbing (HLB). The rapid spread of the disease indicated that it might be caused by a transmissible pathogen, but it took >50 years to identify the causative agent as ‘Can