Peronospora is a genus of plant pathogens, belonging to the class of water moulds. Water moulds are not true fungi (Eumycota) since they belong to the kingdom of chromalveolates.

There are about 75 species in the genus, mostly specific to genera or families of herbaceous dicotyledonous plants. One of the best known Peronospora species (Peronospora parasitica, on Brassicaceae) has now been shown to be a species complex in the genus Hyaloperonospora

Hyaloperonospora

Hyaloperonospora is a genus of downy mildews .Species include* Hyaloperonospora arabidopsidis Göker, Voglmayr, Riethm., Weiss & Oberw., 2003...

. The most important plant pathogen in this complex, on Brassica, is now known as Hyaloperonospora brassicae

Hyaloperonospora brassicae

Hyaloperonospora brassicae, in the family Peronosporaceae, is a plant pathogen. It causes downy mildew of species of Brassica, Raphanus, Sinapis and probably other genera within the Brassicaceae. In the past, the cause of downy mildew in any plant in the family Brassicaceae was considered to be a...

(and does not appear in the list below).

List of Peronospora species

• Peronospora anemones
  Peronospora anemones
  Peronospora anemones is a plant pathogen. It causes downy mildew on leaves of anemone . It occurs on various wild and garden forms of anemone, and has particular commercial importance on Anemone coronaria grown for cut flowers, for example in France and Italy.- External links :**...
  
  
• Peronospora antirrhini
  Peronospora antirrhini
  Peronospora antirrhini is a plant pathogen. It causes downy mildew on leaves of species of Antirrhinum and related genera ....
  
  
• Peronospora arborescens
  Peronospora arborescens
  Peronospora arborescens is a plant pathogen. It causes downy mildew on leaves of Papaver spp. It has economic importance on Papaver somniferum grown as an oilseed crop, for example in central and eastern Europe...
  
  
• Peronospora conglomerata
  Peronospora conglomerata
  Peronospora conglomerata is a plant pathogen.- External links :**...
  
  
• Peronospora destructor
  Peronospora destructor
  Peronospora destructor is a plant pathogen. It causes downy mildew on leaves of cultivated and wild Allium. Allium cepa is most often affected, while Allium schoenoprasum and Allium porrum are only occasionally affected.Downy mildew is a major disease of onion...
  
  
• Peronospora dianthi
• Peronospora dianthicola
  Peronospora dianthicola
  Peronospora dianthicola is a plant pathogen. It causes downy mildew on leaves of carnation . The disease is of minor importance, whether in commercial production or gardens. If necessary, it can be controlled by foliar sprays of fungicides.- External links :**...
  
  
• Peronospora farinosa
  Peronospora farinosa
  Peronospora farinosa is a plant pathogen. It causes downy mildew on leaves of wild and cultivated Amaranthaceae: Amaranthus, Atriplex, Bassia, Beta, Chenopodium, Halimione, Salsola, Spinacia, etc...
  
  
• Peronospora farinosa f.sp. betae
  Peronospora farinosa f.sp. betae
  Peronospora farinosa f.sp. betae is a forma specialis of Peronospora farinosa, attacking sugar beet.-External links:**...
  
  
• Peronospora hyoscyami f.sp. tabacina
  Peronospora hyoscyami f.sp. tabacina
  Peronospora hyoscyami f.sp. tabacina is a plant pathogen.-External links:**-Background Information:Peronopora Hyoscyami Blue mold of tobacco is caused by Peronospora tabacina; it is a fungus like organism that is highly destructive toward seed plants...
  
  
• Peronospora jaapiana
• Peronospora lamii
• Peronospora manshurica
  Peronospora manshurica
  Peronospora manshurica is a plant pathogen.- External links :**...
  
  
• Peronospora potentillae
  Peronospora potentillae
  Peronospora potentillae is a plant pathogen.- External links :**...
  
  
• Peronospora sparsa
  Peronospora sparsa
  Peronospora sparsa is a plant pathogen that causes downy mildew on rose.- External links :**...
  
  
• Peronospora trifoliorum
  Peronospora trifoliorum
  Peronospora trifoliorum is a plant pathogen.- External links :**...
  
  
• Peronospora valerianellae
  Peronospora valerianellae
  Peronospora valerianellae is a plant pathogen. It causes downy mildew on leaves of lamb's lettuce Valerianella locusta, which is widely grown as a salad plant in several European countries . It is transmitted by seed-borne oospores, and is controlled by fungicide sprays of the foliage.- External...
  
  
• Peronospora viciae
  Peronospora viciae
  Peronospora viciae is a plant pathogen. It is a downy mildew that can infect pea plants.- External links :**...
  
  

External links

• Index Fungorum
• USDA ARS Fungal Database