Allium fistulosum L.
(Welsh Onion)

Interactions where Allium fistulosum is the victim or passive partner (and generally loses out from the process)

The following relationships have been collated from the published literature (see 'Interaction References').

Filters:

Affected Part Summary Taxon Vernacular Classification References Darwin Classification of Active Taxon Active Taxon Active Vernacular Active Taxon Uncertain Active State Active Part Active Stage Relationship Relationship Uncertain Relationship Geography Darwin Classification of Passive Taxon Passive Taxon Passive Vernacular Passive Taxon Uncertain Passive State Passive Part Passive Stage Passive Taxon's significance to Active Taxon Indoors etc Season Summary
has sap sucked by Neotoxoptera formosana Onion Aphid Hemiptera: Aphididae CSL Pest Risk Analysis for Neotoxoptera formosana, MacLeod, A., 2007
 /Animalia/Arthropoda/Insecta/Hemiptera/Aphididae/Neotoxoptera formosana/Neotoxoptera formosanaonion aphid Foodplant / sap sucker /Plantae/Tracheophyta/Magnoliopsida/Asparagales/Amaryllidaceae/Allium fistulosum/Allium fistulosumwelsh onion sucks sap of
is parasitised by long covered by epidermis telium Puccinia porri Leek Rust, Allium Rust Pucciniales: Pucciniaceae Checklist of the British and Irish Basidiomycota, Legon, N.W. & Henrici, A. with Roberts, P.J., Spooner, B.M. & Watling, R., 2005
 /Fungi/Basidiomycota/Pucciniomycetes/Pucciniales/Pucciniaceae/Puccinia porri/Puccinia porrileek rust, allium rustlong covered by epidermistelium Foodplant / parasite /Plantae/Tracheophyta/Magnoliopsida/Asparagales/Amaryllidaceae/Allium fistulosum/Allium fistulosumwelsh onion long covered by epidermis telium parasitises
is parasitised by uredium Puccinia porri Leek Rust, Allium Rust Pucciniales: Pucciniaceae Checklist of the British and Irish Basidiomycota, Legon, N.W. & Henrici, A. with Roberts, P.J., Spooner, B.M. & Watling, R., 2005
 /Fungi/Basidiomycota/Pucciniomycetes/Pucciniales/Pucciniaceae/Puccinia porri/Puccinia porrileek rust, allium rusturedium Foodplant / parasite /Plantae/Tracheophyta/Magnoliopsida/Asparagales/Amaryllidaceae/Allium fistulosum/Allium fistulosumwelsh onion uredium parasitises
(live) live may be infected and damaged by colony of sporangium UK/Ireland Peronospora destructor Onion Downy Mildew Peronosporales: Peronosporaceae A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002
 /Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora destructor/Peronospora destructoronion downy mildewcolonysporangium Foodplant / pathogenUK and/or Eire /Plantae/Tracheophyta/Magnoliopsida/Asparagales/Amaryllidaceae/Allium fistulosum/Allium fistulosumwelsh onionlive colony of sporangium infects and damages live
root root may be infected and damaged by usually solitary, immersed, then erumpent pycnidium of phoma anamorph Pyrenochaeta terrestris Pink Root Of Onion - causative organism Pyrenochaeta terrestris, Punithalingam, E. & Holliday, P., 1998
 /Fungi/Ascomycota/Pyrenochaeta terrestris/Pyrenochaeta terrestrispink root of onion (causative organism)usually solitary, immersed, then erumpentpycnidiumphoma anamorph Foodplant / pathogen /Plantae/Tracheophyta/Magnoliopsida/Asparagales/Amaryllidaceae/Allium fistulosum/Allium fistulosumwelsh onionroot usually solitary, immersed, then erumpent pycnidium of phoma anamorph infects and damages root

Author & YearTitleSource
Legon, N.W. & Henrici, A. with Roberts, P.J., Spooner, B.M. & Watling, R., 2005Checklist of the British and Irish Basidiomycota517pp, Royal Botanic Gardens, Kew
MacLeod, A., 2007CSL Pest Risk Analysis for Neotoxoptera formosanaPRAs for consultation on pest risk management PRAs for consultation on pest risk management.
Preece, T.F., 2002A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles33pp, British Mycological Society
Punithalingam, E. & Holliday, P., 1998Pyrenochaeta terrestrisI.M.I. Descriptions of Pathogenic Fungi and Bacteria CMI Descriptions of Pathenogenic Fungi and Bacteria Sheet 397.

Allium fistulosum (Welsh Onion) may also be included in 'fed on by' relations listed under the following higher taxa:

Taxonomic hierarchy:
SpeciesAllium fistulosum (Welsh Onion)
GenusAllium (leeks, onions, garlics)
FamilyAMARYLLIDACEAE (daffodils and onions)
OrderASPARAGALES (orchids, daffodils, onions & irises)
ClassMAGNOLIOPSIDA (flowering plants)
PhylumTRACHEOPHYTA (vascular plants)
KingdomPLANTAE (plants)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
NBNNBN (data.nbn.org.uk) has a distribution map for Allium fistulosum (Welsh Onion)

Allium fistulosum (Welsh Onion) may be included in identification literature listed under the following higher taxa:

Literature listed under the following higher taxa may be relevant to Allium fistulosum (Welsh Onion):

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