Quarantine plant pathogen

'Candidatus Phytoplasma ulmi' → Lepyronia quadrangularis → Xylella fastidiosa

Source EPPO: PHYPUL Vector EPPO: LEPOQU Target EPPO: XYLEFA
RU A1 P-P potential

← To all hypotheses

Scoring

All four metrics are dimensionless. The total score is the product of specificity, host distance and confidence.

0.500
Specificity
1 / the number of pathogens on the vector — this vector carries 2 pathogens in EPPO.
1.00
Host distance
1.0 = no shared hosts · 0.5 = shared family · 0.2 = shared genus · 0.0 = shared species.
0.25
Confidence (P-P)
K = confirmed vector (1.0), P = potential (0.5); both edges are multiplied.
0.125
Total
specificity × host distance × confidence

Distribution: Xylella fastidiosa

Countries with recorded presence per the EPPO Global Database (45 ISO codes).

UYINBRUSCOIQAUCANOATJOFRBEDEVEPYSICZEEPRFIHNALARMARSSELTITMXLBTRCHPTESPEECCRCNIRNLTWSKCYIL

Host plants: Xylella fastidiosa

Top 10 host taxa per EPPO; classes per EPPO host categorisation.

  • Citrus x aurantium var. sinensis CIDSI Major host
  • Coffea arabica COFAR Major host
  • Coffea canephora COFCA Major host
  • Coffea hybrids COFHY Major host
  • Olea europaea OLVEU Major host
  • Prunus dulcis PRNDU Major host
  • Vitis vinifera VITVI Major host
  • Acacia cultriformis ACACL Host
  • Acacia dealbata ACADA Host
  • Acacia longifolia ACALO Host

Synonyms: Xylella fastidiosa

  • leaf scorch of elm
  • leaf scorch of mulberry
  • dwarf disease of alfalfa
  • dwarf disease of lucerne
  • leaf scorch of almond
  • leaf scorch of maple
  • Anaheim disease
  • California vine disease
  • Pierce's disease of grapevine
  • citrus variegated chlorosis
  • leaf scorch of American sycamore
  • leaf scorch of coffee

Sources

'Candidatus Phytoplasma ulmi' ↔ Lepyronia quadrangularis

* Rosa C, Mc Carthy E, Duong K, Hoover G, Moorman G (2014) First report of the spittlebug Lepyronia quadrangularis and the leafhopper Latalus sp. as vectors of the Elm yellows associated phytoplasma, Candidatus Phytoplasma ulmi in North America. Plant Disease 98(1), 154-155.
------- In experiments.

Lepyronia quadrangularis ↔ Xylella fastidiosa

* Sanderlin, R. S., and R. A. Melanson (2010) Insect transmission of Xylella fastidiosa to pecan. Plant Disease 94, 465-470. 
-------  Pecan bacterial leaf scorch. In experiments where Lepyronia quadrangularis specimens were caged on pecan trees, one out of six trees tested with two specimens became infected. The authors conclude that L. quadrangularis could be an occasional vector.