Maize Smut - Ustilago maydis
Mycosarcomma maydis
A smut affecting the shoot and cob of Maize, causing the grains to swell into large greyish, lumpy growths up to 10cm across. These rupture to release the dark, sooty spore-mass.
Photograph on the host plant; note host in comments
Maize (sweetcorn)
Usually seen in autumn as Maize matures.
Rarely recorded in Leicestershire & Rutland, although it may be widespread in gardens and allotments.
Leicestershire & Rutland Map
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MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020
UK Map
Species profile
- Common names
- Sweet Corn Smut, Maize Smut
- Species group:
- fungus
- Kingdom:
- Fungi
- Order:
- Ustilaginales
- Family:
- Ustilaginaceae
- Records on NatureSpot:
- 1
- First record:
- 13/09/2023 (axon, kaye)
- Last record:
- 13/09/2023 (axon, kaye)
Total records by month
% of records within its species group
10km squares with records
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