Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Datasheet

Pseudomonas syringae pv. aesculi
(chestnut bleeding canker)

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Datasheet

Pseudomonas syringae pv. aesculi (chestnut bleeding canker)

Summary

  • Last modified
  • 24 November 2019
  • Datasheet Type(s)
  • Invasive Species
  • Pest
  • Preferred Scientific Name
  • Pseudomonas syringae pv. aesculi
  • Preferred Common Name
  • chestnut bleeding canker
  • Taxonomic Tree
  • Domain: Bacteria
  •   Phylum: Proteobacteria
  •     Class: Gammaproteobacteria
  •       Order: Pseudomonadales
  •         Family: Pseudomonadaceae
  • Summary of Invasiveness
  • P. syringae pv. aesculi is the primary causal agent of bleeding canker on horse chestnut (Aesculushippocastanum) which has been increasingly reported and extending its range in the UK, Netherlands and other coun...

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Pictures

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PictureTitleCaptionCopyright
Pseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.
TitleSymptoms
CaptionPseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.
Copyright©F. Lamiot/via wikipedia - CC BY-SA 3.0
Pseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.
SymptomsPseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.©F. Lamiot/via wikipedia - CC BY-SA 3.0
Pseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.
TitleSymptoms
CaptionPseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.
Copyright©F. Lamiot/via wikipedia - CC BY-SA 3.0
Pseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.
SymptomsPseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.©F. Lamiot/via wikipedia - CC BY-SA 3.0
Pseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.
TitleSymptoms
CaptionPseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.
Copyright©F. Lamiot/via wikipedia - CC BY-SA 3.0
Pseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.
SymptomsPseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.©F. Lamiot/via wikipedia - CC BY-SA 3.0
Pseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.
TitleSymptoms
CaptionPseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.
Copyright©F. Lamiot/via wikipedia - CC BY-SA 3.0
Pseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.
SymptomsPseudomonas syringae pv. aesculi (chestnut bleeding canker); symptoms on trunk. France. December 2006.©F. Lamiot/via wikipedia - CC BY-SA 3.0

Identity

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Preferred Scientific Name

  • Pseudomonas syringae pv. aesculi

Preferred Common Name

  • chestnut bleeding canker

International Common Names

  • English: bleeding canker of horse chestnut

Summary of Invasiveness

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P. syringae pv. aesculi is the primary causal agent of bleeding canker on horse chestnut (Aesculushippocastanum) which has been increasingly reported and extending its range in the UK, Netherlands and other countries of Europe since 2000. The initial symptom is oozing lesions from dying bark on the stems or branches of infected horse chestnut trees and as the weather warms this becomes more copious and turns a rusty red colour, often drying on the bark. Wood decay fungi may later appear from cracks in the bark and yellowing foliage and leaf drop affects the crown in advanced stages of disease. The tree will die if the lesions girdle the trunk completely. Further information can be found from the Forestry Commission in the UK and from the Aesculaap website in the Netherlands.

Taxonomic Tree

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  • Domain: Bacteria
  •     Phylum: Proteobacteria
  •         Class: Gammaproteobacteria
  •             Order: Pseudomonadales
  •                 Family: Pseudomonadaceae
  •                     Genus: Pseudomonas
  •                         Species: Pseudomonas syringae pv. aesculi

Distribution Table

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The distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.

Last updated: 23 Apr 2020
Continent/Country/Region Distribution Last Reported Origin First Reported Invasive Reference Notes

Asia

IndiaPresentCABI and EPPO (2015); EPPO (2020)
-Himachal PradeshPresentCABI and EPPO (2015); EPPO (2020)

Europe

AustriaPresent, Few occurrencesCABI and EPPO (2015); EPPO (2020)
BelgiumPresent, LocalizedCABI and EPPO (2015); EPPO (2020)
CzechiaPresent, LocalizedEPPO (2020); Mertelik et al. (2013); CABI and EPPO (2015)
EstoniaAbsent, Confirmed absent by surveyEPPO (2020)
FinlandPresent, LocalizedEPPO (2020)
FrancePresent, LocalizedCABI and EPPO (2015); EPPO (2020)
GermanyPresent, LocalizedCABI and EPPO (2015); EPPO (2020)
HungaryPresent, Few occurrencesCABI and EPPO (2015); EPPO (2020)
IrelandPresent, LocalizedEPPO (2020); CABI and EPPO (2015)
ItalyAbsent, Unconfirmed presence record(s)CABI and EPPO (2015)
NetherlandsPresent, WidespreadEPPO (2020); CABI and EPPO (2015)
NorwayPresent, LocalizedCABI and EPPO (2015); EPPO (2020)
SloveniaPresentPirc et al. (2018); EPPO (2020)
SwitzerlandPresentMeyer et al. (2016); EPPO (2020)
United KingdomPresent, WidespreadCABI and EPPO (2015); EPPO (2020)
-EnglandPresent, LocalizedEPPO (2020)
-ScotlandPresent, LocalizedCABI and EPPO (2015); EPPO (2020)

Host Plants and Other Plants Affected

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Plant nameFamilyContext
Aesculus hippocastanum (horse chestnut)HippocastanaceaeOther
Aesculus x carnea (red horse-chestnut)HippocastanaceaeOther

Distribution Maps

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