Plasmopara obducens (J. Schröt.) J. Schröt.
(Busy Lizzie Downy Mildew, Impatiens Downy Mildew)

Interactions where Plasmopara obducens is the dominant partner and gains from the process

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

Stage 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
sporangium sporangium infects and damages pale green leaf Foreign Impatiens balsamina Balsam Ericales: Balsaminaceae Impatiens downy mildew, Anon., 2008
CSL Pest Risk Analysis for Plasmopara obducens, Sansford, C., 2007
 /Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Plasmopara obducens/Plasmopara obducensbusy Lizzie downy mildew, impatiens downy mildewsporangium Foodplant / pathogenForeign /Plantae/Tracheophyta/Magnoliopsida/Ericales/Balsaminaceae/Impatiens balsamina/Impatiens balsaminabalsampale greenleaf
sporangium sporangium infects and damages pale green leaf Foreign Impatiens capensis Orange Balsam Ericales: Balsaminaceae Impatiens downy mildew, Anon., 2008
CSL Pest Risk Analysis for Plasmopara obducens, Sansford, C., 2007
 /Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Plasmopara obducens/Plasmopara obducensbusy Lizzie downy mildew, impatiens downy mildewsporangium Foodplant / pathogenForeign /Plantae/Tracheophyta/Magnoliopsida/Ericales/Balsaminaceae/Impatiens capensis/Impatiens capensisorange balsampale greenleaf
sporangium sporangium infects and damages pale green leaf Foreign Impatiens noli-tangere Touch-me-not Balsam Ericales: Balsaminaceae Impatiens downy mildew, Anon., 2008
CSL Pest Risk Analysis for Plasmopara obducens, Sansford, C., 2007
 /Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Plasmopara obducens/Plasmopara obducensbusy Lizzie downy mildew, impatiens downy mildewsporangium Foodplant / pathogenForeign /Plantae/Tracheophyta/Magnoliopsida/Ericales/Balsaminaceae/Impatiens noli-tangere/Impatiens noli-tangeretouch-me-not balsampale greenleaf
sporangium sporangium infects and damages pale green leaf UK/Ireland Impatiens walleriana Busy Lizzie Ericales: Balsaminaceae Impatiens downy mildew, Anon., 2008
Impatiens downy mildew, Anon., 2011
First report of Impatiens downy mildew (Plasmopara obducens) in the UK, Lane, C.R. et al., 2004
CSL Pest Risk Analysis for Plasmopara obducens, Sansford, C., 2007
 /Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Plasmopara obducens/Plasmopara obducensbusy Lizzie downy mildew, impatiens downy mildewsporangium Foodplant / pathogenUK and/or Eire /Plantae/Tracheophyta/Magnoliopsida/Ericales/Balsaminaceae/Impatiens walleriana/Impatiens wallerianabusy Lizziepale greenleaf

Author & YearTitleSource
Anon., 2008Impatiens downy mildewPlant Clinic News Sep 08: 1.
Anon., 2011Impatiens downy mildewLook out for!.. Plant Clinic News: 3.
Lane, C.R. et al., 2004First report of Impatiens downy mildew (Plasmopara obducens) in the UKNew Disease Reports Vol 10.
Sansford, C., 2007CSL Pest Risk Analysis for Plasmopara obducensPRAs for consultation on pest risk management PRAs for consultation on pest risk management.

Plasmopara obducens (Busy Lizzie Downy Mildew, Impatiens Downy Mildew) may be included in 'fed on by' relations listed under the following higher taxa:

Taxonomic hierarchy:
SpeciesPlasmopara obducens (Busy Lizzie Downy Mildew, Impatiens Downy Mildew)
GenusPlasmopara (a genus of downy mildews)
FamilyPERONOSPORACEAE (downy mildews)
OrderPERONOSPORALES (downy mildews and white rusts)
ClassPERONOSPOREA (a class of fungoid organisms)
PhylumOOMYCOTA (a group of mainly plant-parasitic fungi)
KingdomCHROMISTA (algae)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
NBNNBN (data.nbn.org.uk) has a distribution map for Plasmopara obducens (Busy Lizzie Downy Mildew, Impatiens Downy Mildew)

Identification Works

Handling & MagnificationAuthorYearTitleSource
Anon. 2011 Impatiens downy mildew Look out for!.. Plant Clinic News: 3.
Anon. 2008 Impatiens downy mildew Plant Clinic News Sep 08: 1.
Lane, C.R. et al. 2004 First report of Impatiens downy mildew (Plasmopara obducens) in the UK New Disease Reports Vol 10.
Sansford, C. 2007 CSL Pest Risk Analysis for Plasmopara obducens PRAs for consultation on pest risk management PRAs for consultation on pest risk management.

Plasmopara obducens (Busy Lizzie Downy Mildew, Impatiens Downy Mildew) may also be included in identification literature listed under the following higher taxa:

General Works

AuthorYearTitleSource
Jennings, P. 2011 Impatiens downy mildew – fungicide resistance to metalaxyl-M confirmed 1.

Literature listed under the following higher taxa may also be relevant to Plasmopara obducens (Busy Lizzie Downy Mildew, Impatiens Downy Mildew):

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