Annals of Applied Biology (2014) 165, 172-198

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M. Haapalainen (2014)
Biology and epidemics of Candidatus Liberibacter species, psyllid-transmitted plant-pathogenic bacteria
Annals of Applied Biology 165 (2), 172-198
Abstract: Candidatus Liberibacter species are Gram-negative bacteria that live as phloem-limited obligate parasites in plants, and are associated with several plant diseases. These bacteria are transmitted by insects called psyllids, or jumping plant lice, which feed on plant phloem sap. Citrus huanglongbing (yellow shoot) or citrus greening disease is associated with three different species of Ca. Liberibacter - Ca. L. asiaticus, Ca. L. africanus and Ca. L. americanus - all originally found on different continents. Ca. L. asiaticus is the most severe pathogen, spread by Asian citrus psyllid Diaphorina citri and causing devastating epidemics in several countries. Ca. L. africanus occurs in Africa where it is spread by the African citrus psyllid Trioza erytreae. Ca. Liberibacter solanacearum is associated with diseases in several solanaceous plants, and transmitted by potato psyllid Bactericera cockerelli. Zebra chip disease is causing large damage in potato crops in North America. In Europe Ca. Liberibacter solanacearum is associated with diseases of the Apiaceae family of plants, carrot and celery, and transmitted by psyllids Trioza apicalis and Bactericera trigonica. When Ca. Liberibacter is suspected as the disease agent, the diagnosis is confirmed by DNA-based detection methods. Ca. Liberibacter-associated plant diseases can be controlled by using healthy plant propagation material, eradicating symptomatic plants, and by controlling the psyllid populations spreading the disease.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website

Database assignments for author(s): Minna Haapalainen

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.
Liberibacter asiaticus
Trioza erytreae
Diaphorina citri
Liberibacter africanus
Bactericera trigonica
Trioza apicalis
Bactericera cockerelli
Liberibacter americanus
Liberibacter solanacearum