Uncinula necator (Schwein.) Burrill 1892

Details

Name scientific

Uncinula necator (Schwein.) Burrill in Ellis & Everhart, N. Amer. Pyrenomyc. 15 (1892)

Preferred name

Erysiphe necator Schwein. 1832 [1834]

Taxonomy reference

Braun, U.; Cook, R.T.A. 2012: Taxonomic Manual of the Erysiphales (Powdery Mildews). CBS Biodiversity Series. 11. 707 p.

Nomenclature

Authors

(Schwein.) Burrill

Original authors

Schwein.

Combination authors

Burrill

Publication place

Ellis, J.B.; Everhart, B.M. 1892: The North American Pyrenomycetes.

Year published

1892

Publication page

Nomenclatural code

ICN

Basionym

Erysiphe necator Schwein. 1832 [1834]

Taxonomic rank

species

Canonical form

Uncinula necator

Classification

Kingdom

Fungi

Phylum

Ascomycota

Class

Leotiomycetes

Order

Helotiales

Family

Erysiphaceae

Genus

Uncinula

Species

necator

Subordinates

Uncinula necator var. necator

Associations

View full associations record

Association type

Associated organism

Association source

has host

Vitis vinifera L.

Amano, K. (1986)

has host

Vitis vinifera L.

Berrysmith, F. (1973)

has host

Vitis vinifera L.

Boesewinkel, H.J. (1977)

has host

Vitis vinifera L.

Boesewinkel, H.J. (1980)

has host

Vitis vinifera L.

Braun, U. (1987)

has host

Vitis vinifera L.

Cunningham, G.H. (1922)

has host

Vitis vinifera L.

Dingley, J.M. (1969)

has host

Vitis vinifera L.

Gadgil, P.D. (in association with Dick, M.A.; Hood, I.A.; Pennycook, S.R.) (2005)

has host

Vitis vinifera L.

Hammett, K.R.W. (1978)

has host

Vitis vinifera L.

Kirk, T.W. (1901)

has host

Vitis vinifera L.

Kirk, T.W. (1904)

has host

Vitis vinifera L.

Pennycook, S.R. (1989)

Descriptions

Gadgil, P.D. (in association with Dick, M.A.; Hood, I.A.; Pennycook, S.R.) 2005: Fungi on trees and shrubs in New Zealand. Fungi of New Zealand. 4. Fungal Diversity Press.

Uncinula necator (Schwein.) Burrill 1892

Description

Type: Powdery Mildews; Description: Mycelium superficial, thin or dense, white, hyphae 5 μm wide; on leaves, stalks, and fruit. Appressoria multi-lobed. Ascomata not known in New Zealand. Conidiophores 70–100 × 5–8 μm when epiphyllous, 220–400 × 5–8 μm when hypophyllous, foot cell moderately to extremely flexuous at the base. Conidia produced singly, oval, 0-septate, 27–35 × 15–18 μm, smooth, hyaline.

Distribution

Distribution: Auckland, Hawkes Bay, Mid Canterbury.; 1st Record: Kirk (1901).

Notes

Pathogenicity

Significance: Powdery mildew of grape is common in most main grape-growing areas, and can cause serious losses. Leaves are killed and early infection of berries checks their development, causing abscission. It is distinguishable from downy mildew by the presence of white powdery patches on the upper surfaces of leaves; the whitish glossy mycelial patches of downy mildew occur mostly on the undersides.; Host(s): Vitis vinifera.