Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide


Gnomonia comari
(stem-end rot)



Gnomonia comari (stem-end rot)


  • Last modified
  • 14 July 2018
  • Datasheet Type(s)
  • Pest
  • Preferred Scientific Name
  • Gnomonia comari
  • Preferred Common Name
  • stem-end rot
  • Taxonomic Tree
  • Domain: Eukaryota
  •   Kingdom: Fungi
  •     Phylum: Ascomycota
  •       Subphylum: Pezizomycotina
  •         Class: Sordariomycetes

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G. comari: symptoms of leaf blotch on strawberry leaves.
TitleSymptoms on strawberry
CaptionG. comari: symptoms of leaf blotch on strawberry leaves.
Copyright©INRA, Avignon
G. comari: symptoms of leaf blotch on strawberry leaves.
Symptoms on strawberryG. comari: symptoms of leaf blotch on strawberry leaves.©INRA, Avignon


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Preferred Scientific Name

  • Gnomonia comari P. Karst.

Preferred Common Name

  • stem-end rot

Other Scientific Names

  • Gloeosporium fragariae Arnaud
  • Gnomonia agrimoniae Bref. & Tavel
  • Gnomonia fragariae Kleb.
  • Gnomonia fragariae f.sp. fructicola Arnaud
  • Gnomonia fructicola (Arnaud) Fall
  • Gnomonia guttalata (Starbäck) Kirschst.
  • Gnomonia herbicola A.L. Sm.
  • Gnomonia occulta Kirschst.
  • Gnomonia pusilla Sacc. & Flageolet
  • Phyllosticta grandimaculans Bubá & K. Krieg.
  • Zythia fragariae Laib.

International Common Names

  • English: fruit rot: strawberry; leaf blotch; leaf blotch: strawberry; stem-end fruit rot; strawberry fruit rot
  • Spanish: enrojecimiento y desecacion parasitaria del follaj; podredumbre de la fresa
  • French: anthracnose du fraisier; brulure du petiole du fraisier; maladie des taches brunes; rougissement et desséchement du fraisier

Local Common Names

  • Germany: Blattfleckenkrankheit: Erdbeere; Fruchtfaeule: Erdbeere

EPPO code

  • GNOMFR (Gnomonia fructicola)

Taxonomic Tree

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  • Domain: Eukaryota
  •     Kingdom: Fungi
  •         Phylum: Ascomycota
  •             Subphylum: Pezizomycotina
  •                 Class: Sordariomycetes
  •                     Subclass: Sordariomycetidae
  •                         Order: Diaporthales
  •                             Family: Valsaceae
  •                                 Genus: Gnomonia
  •                                     Species: Gnomonia comari

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.

Continent/Country/RegionDistributionLast ReportedOriginFirst ReportedInvasiveReferenceNotes


ChinaPresentPresent based on regional distribution.
-ShaanxiPresentChao and Zhong, 1988
IsraelWidespreadCMI, 1982

North America

CanadaRestricted distributionIMI Herbarium, undated
-British ColumbiaPresentCMI, 1982
-Newfoundland and LabradorPresentCMI, 1982
-Nova ScotiaPresentGourley, 1975
-OntarioPresentFall, 1951; McLean and Sutton, 1992
-QuebecPresentCMI, 1982
USAPresentPresent based on regional distribution.
-CaliforniaPresentGubler and Feliciano, 1999
-MainePresentCMI, 1982
-MarylandPresentMaas, 1974
-MichiganPresentCMI, 1982
-New HampshirePresentCMI, 1982

South America

VenezuelaPresentGuevara et al., 2004


CroatiaPresentMilicevic et al., 2006
Czech RepublicPresentReblova and Svreck, 1997
DenmarkPresentCMI, 1982
FinlandPresentKurpa & Vrain, 1989; Dalman et al., 1993
FranceRestricted distributionFerrière & Lemaire, 1999; Arnaud and Arnaud, 1931
GermanyPresentMappes and Locher, 1983
GreecePresentCMI, 1982
HungaryWidespreadGlits, 1997
ItalyPresentAntoniacci et al., 2009
NetherlandsPresentvan der Scheer, 1981
PolandPresentCMI, 1982
RomaniaWidespreadCMI, 1982
SpainWidespreadTuset Barrachina, 1972
SwitzerlandWidespreadBolay, 1971
UKWidespread****IMI Herbarium, undated
Yugoslavia (Serbia and Montenegro)PresentVeselic and Arsenijevic, 1998


AustraliaRestricted distributionIMI Herbarium, undated; Washington et al., 1999
New ZealandRestricted distributionIMI Herbarium, undated; CMI, 1982

Growth Stages

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List of Symptoms/Signs

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SignLife StagesType
Fruit / lesions: black or brown
Inflorescence / lesions; flecking; streaks (not Poaceae)
Leaves / necrotic areas
Roots / rot of wood
Whole plant / plant dead; dieback


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Antoniacci L, Paoli Ede, Montuschi C, Ceredi G, Gengotti S, 2009. Gnomonia comari on strawberry: preliminary study on control strategy in the north of Italy. Acta Horticulturae [VI International Strawberry Symposium, Huelva, Spain, 3-7 March 2008.], No.842:251-254.

Arnaud G, Arnaud M, 1931. TraitT de pathologie vTgTtale, In: Lechevalier P, ed. EncyclopTdie de Mycologie Tome I, 4:1558-1562.

Bolay A, 1971. Contribution to the knowledge of Gnomonia comari Karsten (syn. G. fructicola (Arnaud) Fall). A taxonomic and phytopathological study and research on its growth in vitro. Berichte der Schweizerischen Botanischen Gesellschaft, 81:398-482

Bolton AT, 1954. Gnomonia comari on strawberry. Can. J. Bot., 32:172-181.

Chao W, Zhong X, 1988. Studies on wild strawberry resources in Qinling and Bashan mountain areas. Zuowu Pinzhong Ziyuan, No. 4:3-5.

CMI, 1982. Descriptions of Pathogenic Fungi and Bacteria, No. 737. Wallingford, UK: CAB International.

Dalman P, Parikka P, Touvinen T, 1993. Polypropylene row cover in pesticide-free production of strawberry in Finland. Acta Horticulturae, No. 348:489-492

Fall JE, 1951. Studies on fungus parasites of strawberry leaves in Ontario. Can. J. Bot., 29:299-315.

FerriFre H, Lemaire JM, 1999. Maladies du fraisier: point sur le non enracinement, Rhizoctonia fragariae, Phytophthora cactorum et Gnomonia comari. P. H. M. Revue Horticole, 400:52-56.

Glits M, 1997. Fruit rot of strawberry caused by Gnomonia comari. No^umlaut~ve^acute~nyve^acute~delem, 33(11):557-560; 9 ref.

Gourley CO, 1975. Gnomonia fructicola relative to other fungi on diseased calyxes of mature strawberry fruit. Canadian Journal of Plant Science, 55(2):439-442

Gubler WD, Feliciano AJ, 1999. Occurrence of leaf blotch and stem-end rot of strawberry in the central coast of California. Plant Disease, 83(2):199; 1 ref.

Guevara Y, Aponte A, Maselli A, 2004. Diseases of strawberries in agricultural locations in Aragua and Miranda. (Enfermedades del cultivo de la fresa en dos localidades agrícolas de Aragua y Miranda.) INIA Divulga, No.3:22-24.

Guttridge CG, Montgomerie IG, 1971. Survival of strawberry plants during and after cold storage. Hort. Res., 11:52-59.

IMI Herbarium, undated. Herbarium specimen. International Mycological Institute (now CABI Bioscience) Herbarium. Egham, UK: CABI Bioscience.

Kurppa S, Vrain TC, 1989. Effects of Pratylenchus penetrans on the infection of strawberry roots by Gnomonia comari. Journal of Nematology, 21(4):511-516; 20 ref.

Maas JL, 1974. Response of strawberry cultivars to fall application of benomyl for storage decay protection. HortScience, 9(3):201-202

Mappes D, Locher F, 1983. Effects of blossom sprays on fruit rot control and the storability of strawberries. (German). Obstau, 8:154-156.

McLean MA, Sutton JC, 1992. Mycoflora of strawberry in Ontario. Canadian Journal of Botany, 70(4):846-852; 17 ref.

Milicevic T, Ivic D, Cvjetkovic B, Duralija B, 2006. Possibilities of strawberry integrated disease management in different cultivation systems. Agriculturae Conspectus Scientificus (Poljoprivredna Znanstvena Smotra) [COST Action 863 joint meeting of the Working Groups 2&3 "Berry plant quality and sustainable production", Zagreb, Croatia, 19-22 April, 2006.], 71(4):129-134.

RTblovß M, Svrcek M, 1997. New records of Pyrenomycetes from the Czech Republic I. Czech Mycology, 49(3/4):193-206; 30 ref.

Tuset Barrachina JJ, 1972. Gnomonia fructicola (Arnaud) Fall and Zythia fragariae Laibach, causal agents of a strawberry rot in western Andalusia. Anales del Instituto Nacional de Investigaciones Agrarias, Proteccion Vegetal, No. 2:35-50

Van der Scheer HAT, 1981. Gnomonia fruit rot, and increasing problem in strawberry growing in the Netherlands (Dutch) Fruitteelt, 8:1240-1241.

Veselic M, Arsenijevic M, 1998. Host range of Gnomonia rostellata (Fr.) Wehm., the pathogen of blackberry (Rubus fruticosus L.) plants. Acta Phytopathologica et Entomologica Hungarica, 33(3/4):291-296; 12 ref.

Washington WS, Engleitner S, Boontjes G, Shanmuganathan N, 1999. Effect of fungicides, seaweed extracts, tea tree oil, and fungal agents on fruit rot and yield in strawberry. Australian Journal of Experimental Agriculture, 39(4):487-494.

Distribution Maps

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