''Erysiphe'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

fungi A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one ...

in the family

Erysiphaceae Erysiphales are an order of ascomycete fungi. The order contains one family, Erysiphaceae. Many of them cause plant diseases called powdery mildew. Systematics The order contains one family (Erysiphaceae), 28 genera and around 1000 species. Ma ...

. Many of the

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

in this genus are

plant pathogens Plant diseases are diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like orga ...

which cause

powdery mildew Powdery mildew is a fungus, fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of Ascomycota, ascomycete fungi in the order Erysiphales. Powdery mildew is one of the easier plant disea ...

Selected species

This genus includes, but is not limited to the following species: * '' Erysiphe alphitoides'' * '' Erysiphe azerbaijanica'' * '' Erysiphe betae'' * '' Erysiphe brunneopunctata'' * ''

Erysiphe cichoracearum ''Erysiphe cichoracearum'' is a fungal plant pathogen that causes powdery mildew disease of cucurbits, including melon, cucumber, pumpkin, and squash. The primary symptoms are white, powder-like spots on the leaves and stems. '' Sphaerothec ...

'' * '' Erysiphe communis'' * ''

Erysiphe cruciferarum ''Erysiphe cruciferarum'' is a plant pathology, plant pathogen of the family Erysiphaceae, which causes the main powdery mildew of crucifers, including on ''Brassica'' crops, such as cauliflower, cabbage, broccoli, and Brussels sprouts. ''E. cruc ...

'' * '' Erysiphe diffusa'' (syn ''Erysiphe lespedezae'' 1. Xiao, Y.-T., C.-J. Wang, T.-C. Huang, and Y.-M. Shen. 2020. ''Erysiphe lespedezae'' causing powdery mildew on ''Bauhinia variegata'', ''B. blakeana'' and ''Desmodium caudatum'' in Taiwan. Forest Pathology 50(5):e12631.) * '' Erysiphe fernandoae'' * '' Erysiphe flexuosa'' * ''

Erysiphe heraclei ''Erysiphe heraclei'' is a plant pathogen that causes powdery mildew on several species including dill, carrot and parsley. History It was originally found in 1815, on the leaves of a species of ''Heracleum (plant), Heracleum'' in France. It was ...

'' * '' Erysiphe michikoae'' * '' Erysiphe nitida * '' Erysiphe pisi'' * ''

Erysiphe polygoni ''Erysiphe betae'' is a fungal plant pathogen. It is a form of powdery mildew that can affect crops of sugar beet A sugar beet is a plant whose root contains a high concentration of sucrose and that is grown commercially for sugar productio ...

'' * '' Erysiphe robiniae'' * '' Erysiphe syringae''

References

Fungal plant pathogens and diseases Leotiomycetes genera Taxa named by Augustin Pyramus de Candolle Taxa described in 1805 {{Leotiomycetes-stub