Plant Parasites of Europe

leafminers, galls and fungi

Aceria fraxinivora

Aceria fraxinivora (Nalepa, 1909)

on Fraxinus

Aceria fraxinivora gall

Fraxinus excelsior, Dronten, 1.x.2007 © Arnold Grosscurt

Aceria fraxinivora gall

transverse section

Aceria fraxinivora: gall on Fraxinus excelsior

Fraxinus excelsior, Zalk, 27.v.2020 © Arnold Grosscurt: fresh gall

Aceria fraxinivora: gall on Fraxinus excelsior

even in such detail the responsible mites are too small to be seen.

Aceria fraxinivora galls

Fraxinus excelsior, Naarderbos, 30.ix.2011; of this particular tree no inflorescence remained unaffected

Aceria fraxinivora gall

Fraxinus excelsior, Belgium, prov. Liège, Grivegnée, 22.iv.2010 © Jean-Yves Baugnée: gall of previous year

Aceria fraxinivora: gall on Fraxinus ornus

Fraxinus ornus, Bulgaria, Varna, 30.viii.2014 © Stéphane Claerebout: sometimes the gall occurs on the twigs ….

Aceria fraxinivora: gall on Fraxinus ornus

and occasionally even on a leaf.

Aceria fraxinivora: gall on Fraxinus ornus

Fraxinus ornus, Dronten, 24.x.2017 © Arnold Grosscurt; galls not larger than ± 2 cm.

Aceria fraxinivora, galls

Fraxinus excelsior, Amsterdamse Bos, 8.iv.2020 © Cor Zonneveld: galls on a 2-3 years old sapling

Aceria fraxinivora, gall

detail

Aceria fraxinivora of Fraxinus excelsior

slight malformations in the inflorescence of a mature tree

Aceria fraxinivora of Fraxinus excelsior

strong malformations

parasite

frequently occurring gall, generally in the inflorescence, rarely also on the branches of very young trees.

host plants

Oleaceae, monophagous

Fraxinus americana, angustifolia & subsp. oxycarpa, bungeana, excelsior, ornus, pennsylvanica.

synonyms

Eriophyes fraxinivorus; Eriophyes, Phytoptus, fraxini Karpelles, 1884.

notes

It would be interesting to investigate if male and female trees are affected to a different degree.

inquilines

the mites are predated by the larvae of the gall midge Arthrocnodax fraxinellus.

references

Abras, Fassotte, Chandelier & Cavelier (2008a), Ashe & O’Connor (2005a), Béguinot (2002a,d,e,h, 2003a, 2006a,c, 2007b, 2012a), Bellmann (2012a), Braggion (2013a), Buhr (1964b), Chinery (2011a), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Denizhan, Monfreda, de Lillo & Çobanoğlu (2015a), Farkas (1965a), Flügel (2016a), Groom (2011a), Hellrigl (2003a, 2004b, 2006a), Houard (1909a), Keifer, Baker, Kono, Delfinado & Styer (1982a), Kollár (2007a, 2011a), Koops (2013a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon, Schneider & Feitz (2001a, 2012a), Lehmann & Hannover (2016a), Petanović & Stanković (1999a), Redfern & Shirley (2011a), Ripka (2007a, 2008a), Ripka & de Lillo (1997a), Roivainen (1947a, 1951), Roques, Cleary, Matsiakh & Eschem (2017a), Roskam (2009a), Skoracka, Lewandowski & Boczek (2005a), Tomasi (2003a, 2012a, 2014a), Vaněčková-Skuhravá (1996a), Weidner (1954a), Xue, Sadeghi & Hong (2009a).

Last modified 9.vii.2020