Quarantine plant pathogen
Closterovirus tristezae → Diaphorina citri → 'Candidatus Liberibacter americanus'
RU A2 P-K potential
Scoring
All four metrics are dimensionless. The total score is the product of specificity, host distance and confidence.
0.167
Specificity
1 / the number of pathogens on the vector — this vector carries 6 pathogens in EPPO.
0.00
Host distance
1.0 = no shared hosts · 0.5 = shared family · 0.2 = shared genus · 0.0 = shared species.
0.50
Confidence (P-K)
K = confirmed vector (1.0), P = potential (0.5); both edges are multiplied.
0.000
Total
specificity × host distance × confidence
Distribution: 'Candidatus Liberibacter americanus'
Countries with recorded presence per the EPPO Global Database (5 ISO codes).
BRPYBESINL
Host plants: 'Candidatus Liberibacter americanus'
Top 4 host taxa per EPPO; classes per EPPO host categorisation.
- Citrus reticulata CIDRE Major host
- Citrus x aurantium var. sinensis CIDSI Major host
- Murraya paniculata MUYPA Host
- Nicotiana tabacum NIOTA Experimental
Synonyms: 'Candidatus Liberibacter americanus'
- Brazilian citrus greening
- Liberibacter americanus
Sources
Closterovirus tristezae ↔ Diaphorina citri
* Zhang J, Xiao Y, Hu P, Chen L, Deng X, Xu M (2024) Report of Citrus tristeza virus in Diaphorina citri (Hemiptera: Liviidae) insects of different sexes, color morphs, and developmental stages. Journal of Insect Science 24(1), 13. https://doi.org/10.1093/jisesa/ieae014 ------ Laboratory and field experiments conducted in China showing that the insect can acquire the virus.
Diaphorina citri ↔ 'Candidatus Liberibacter americanus'
* Ajene IJ, Khami FM, van Asch B, Pietersen G, Seid N, Rwomushana I, Ombura FLO, Momanyi G, Finyange P, Rasowo BA, Tanga CM, Mohammed S, Ekesi S (2020) Distribution of Candidatus Liberibacter species in Eastern Africa, and the first report of Candidatus Liberibacter asiaticus in Kenya. Scientific Reports 10, 3919 https://doi.org/10.1038/s41598-020-60712-0 * Gottwald TR (2010). Current epidemiological understanding of citrus huanglongbing. Annual Review of Phytopathology 48, 119-139.