| Onion smut | |
|---|---|
 |
|
| Onions infected with smut | |
| Scientific Classification | |
| Kingdom: | Fungi |
| Phylum: | Basidiomycota |
| Subphylum: | Ustilaginomycotina |
| Class: | Ustilaginomycetes |
| Subclass: | Ustilaginomycetidae |
| Order: | Urocystales |
| Family: | Urocystaceae |
| Genus: | Urocystis |
| Species: | Urocystis magica |
| Synonyms | |
| Smut Uburcinia cepulae Liro (1922) |
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This article is for the disease of onions. For other uses, see Smut
Onion smut (Urocystis magica) is a tough disease of the onion because it can last for years in the soil as spores. When the onion crop is planted the spores germinate and enter the fresh seeds.[1]
Symptoms[]
When the plant grows lesions form on the leaf and any bulbs that form will be covered in black spots. Most of the time infected seeds will die within 3–5 weeks of planting.[1]
Treatment[]
None. Lift and burn diseased plants.[2]
Prevention[]
Leeks and onions should not be grown in the same site for 8 years.[2]
References[]
- ↑ a b ["Crop Profile for Onions in New York". USDA. May 1999.
- ↑ a b Hessayon, D.G. (2009). The Vegetable & Herb Expert. Transworld Publishers, London. p. 75. ISBN 9780903505468