Mycosphaerella ulmi


Mycosphaerella ulmi is a fungal plant pathogen that affects the leaves of Elm species. 

Identification difficulty
Recording advice

Please provide photographs and state the host grass species. Specimen should be microscopically examined.


Mycosphaerella ulmi may be found wherever the host Elm species occur.

When to see it

When Elm is in leaf – summer and autumn.

UK Status

True status in Britain is difficult to determine due to lack of records.

VC55 Status

Status in Leicestershire and Rutland not known.

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Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map