The following relationships have been collated from the published literature (see 'Interaction References').
Filters:
Affected Part | Summary | Taxon | Vernacular | Classification | References | |||
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is spotted by colony of Aspergillus dematiaceous anamorph | Aspergillus niger | Black Mould Of Onions, Garlic and Shallots - causative organism | Eurotiales: Trichocomaceae | Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997 |
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bulb base (white mycelial-coated) | white mycelial-coated bulb base may be infected and damaged by numerous sclerotium | Stromatinia cepivora | Onion White Rot - causative organism | Helotiales: Sclerotiniaceae | Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998 |
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bulb scale (outer) (dry) | dry bulb scale (outer) is decayed by concentric acervulus of Colletotrichum coelomycetous anamorph | Colletotrichum circinans | Onion Smudge - causative organism, Onion Smudge Fungus | Glomerellaceae | Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998 |
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bulb (live) | live bulb may contain larva | Delia antiqua | Onion Fly | Diptera: Anthomyiidae | Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998 |
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bulb (live) | live bulb may be infected and damaged by colony of sporangium | Peronospora destructor | Onion Downy Mildew | Peronosporales: Peronosporaceae | Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998 A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002 |
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leaf (base) (live, insufficently ripened before lifting) | live, insufficently ripened before lifting leaf (base) may be infected and damaged by colony of Botrytis dematiaceous anamorph | Botrytis aclada | Onion Neck Rot - causative organism | Helotiales: Sclerotiniaceae | British Parasitic Fungi, Moore, W.C., 1959 |
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leaf base (shortly yellow streaked) | shortly yellow streaked leaf base may be infected and damaged by | Onion Yellow Dwarf virus | a phytopathogenic virus | Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998 |
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leaf (live, swollen or twisted) | live, swollen or twisted leaf is parasitised by elongated streaks or isolated pustules sorus | Urocystis magica | Onion Smut | Urocystidales: Urocystidaceae | Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998 |
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leaf (live) | live leaf may be infected and damaged by colony of sporangium | Peronospora destructor | Onion Downy Mildew | Peronosporales: Peronosporaceae | Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998 A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002 |
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leaf (yellow, crinkled, flatened, twisted) | yellow, crinkled, flatened, twisted leaf may be infected and damaged by | Onion Yellow Dwarf virus | a phytopathogenic virus | Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998 |
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leaf (yellowed, wilting, died back) | yellowed, wilting, died back leaf may be infected and damaged by | Stromatinia cepivora | Onion White Rot - causative organism | Helotiales: Sclerotiniaceae | Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998 |
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stem (live) | live stem may contain larva | Delia antiqua | Onion Fly | Diptera: Anthomyiidae | Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998 |
Author & Year | Title | Source |
---|---|---|
Buczacki, S. & Harris, K., 1998 | Pests, Diseases & Disorders of Garden Plants | Collins Photoguide, 2nd edition edition, Collins |
Ellis, M.B. & J.P., 1997 | Microfungi on Land Plants: An Identification Handbook | 2nd (New Enlarged) edition, 868pp, The Richmond Publishing Co. Ltd |
Moore, W.C., 1959 | British Parasitic Fungi | 430pp, Cambridge University Press |
Preece, T.F., 2002 | A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles | 33pp, British Mycological Society |
Allium oschaninii (Shallot) may be included in identification literature listed under the following higher taxa:
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