Oculimacula yallundae

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Oculimacula yallundae - I) ascomata, J) ascal layer, K) ascus and ascospores - scale bars: I = 100 μm; J, K = 10 μm (click on image to enlarge it)
Author(s): Y. Marin-Felix et al.
Source: Studies in Mycology (2018) 92, p. 102

Oculimacula yallundae (Wallwork & Spooner 1988) Crous & W. Gams 2003

This fungus causes eyespot disease in cereals (see also Oculimacula acuformis). In Europe the disease is serious during mild winters (mainly on winter sown crops of wheat and barley) and during humid springs. The fungus attacks the stems where it causes characteristic, elongated lesions.

Cercosporella herpotrichoides
Helgardia acuformis (anamorph synonym)
Pseudocercosporella herpotrichoides
Pseudosporella herpotrichoides
Ramulispora herpotrichoides
Tapesia yallundae

Vernacular names
• Deutsch: Halmbruchkrankheit
• English: strawbreaker foot rot
eyespot disease of cereals
• Español: encamado parasitario de los cereales
• Français: piétin-verse des céréales