Plant Parasites of Europe

leafminers, galls and fungi

Utrechtiana roumeguerei

Utrechtiana roumeguerei Cavara) Videira & Crous, 2016

on Phragmites

Utrechtiana roumeguerei on Phragmites australis

Phragmites australis, Belgium, prov. Antwerp, Geel, Municipl Fish Pond, 3.viii.2019 © Carina Van Steenwinkel

Utrechtiana roumeguerei on Phragmites australis

leaf spots

Utrechtiana roumeguerei on Phragmites australis

detail

Utrechtiana roumeguerei: conidiophores

two conidiophores

Utrechtiana roumeguerei: conidiophores

conidia formation

Utrechtiana roumeguerei: conidia

conidia

Deightoniella roumeguerei: conidium

conidium

gall

Resembles U. arunudinacea, but the infection is localised, not systemic, and the fungus does not cover almost the entire leaf, but is restricted to some mm wide, and up to 2 cm long brown to dark brown spots. Mature conidia of arundinacea are cone-shaped and 2-septate, those of roumeguerei are ovate, 1-septate.

host plants

Poaceae, monoph443445agous

Phragmites australis.

synonyms

Utrechtiana cibiessia Crous & Quaedvlieg, 2011; Deightoniella roumeguerei (Cavara) Constantinescu, 1983.

references

Constantinescu (1983a), Crous, Quaedvlieg & Groenewald (2011a), Van Ryckegem (2005a).

Last modified 25.x.2023