Setophoma terrestris

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Setophoma terrestris (= Phoma terrestris) symptoms on cut-open corn rootcrown (click on image to enlarge it)
Author(s): William M. Brown Jr.
Source: IPM Images

Setophoma terrestris (H.N. Hansen) Gruyter, Aveskamp & Verkley, 2010

The fungus causes root diseases on onions, maize and some other crops. It is soil-borne and in the absence of a host can persist as conidia, pycnidia as well as in plant debris. Infected roots usually have a characteristic pink colour. The above-ground parts of the plants show chlorosis, wilting and dieback.

Vernacular names
• Deutsch: Wurzelfäule der Zwiebel
• English: pink root rot of onions
red root rot of maize
• Español: raíces rosadas de la cebolla
• Français: racines roses de l'oignon

Synonyms:
Phoma terrestris
Pyrenochaeta terrestris