Erysiphe necator

TaxID: 52586

Basic Information

Erysiphe necator

Grape Powdery Mildew, Meeldauw (Erysiphe necator), grape powdery mildew

Erysiphe necator, synonym Uncinula necator, is a fungus that causes powdery mildew of grape. It is a common pathogen of Vitis species, including the wine grape, Vitis vinifera. The fungus is believed to have originated in North America. European varieties of Vitis vinifera are more or less susceptible to this fungus. Erysiphe necator infects all green tissue on the grapevine, including leaves and young berries. It can cause crop loss and poor wine quality if untreated. The sexual stage of this pathogen requires free moisture to release ascospores from its cleistothecia in the spring. However, free moisture is not needed for secondary spread via conidia; high atmospheric humidity is sufficient. It produces common odors such as 1-octen-3-one and (Z)-1,5-octadien-3-one. This mildew can be treated with sulfur or fungicides; however resistance to several chemical classes such as Benomyl, the DMIs, and Strobilurins has developed. While synthetic fungicides are often recommended as applications around bloom, it is common to include sulfur in a tank mix to help with resistance management.

from Wikipedia

Taxonomic Information

Eukaryota

Ascomycota

Leotiomycetes

Erysiphales

Erysiphaceae

Erysiphe

necator

Undefined

Photos (5 photos)

Erysiphe necator
c
(c) Susan J. Hewitt@BY-NC
Erysiphe necator
c
(c) Björn Sothmann@BY-SA
Erysiphe necator
c
(c) Юрій Бенгус@BY-NC
Erysiphe necator
c
(c) Steven Bodzin@BY
Erysiphe necator
c
(c) 大肚魚@BY-NC

Morphological Features

No morphological description available.

Host Plants (0 host plants)

Data sources: EPPO Global Database and relevant literature.

No host plants available.

Quarantine Status (6 records)

Data sources: IPPC website and national quarantine websites; verified by human review.

Country Status Year Added
Egypt Regulated non-quarantine pest 2018
Indonesia Absent —
Moldova Quarantine pests —
Malaysia Quarantine pests —
Nicaragua Absent —
United States of America Quarantine pests —

Distribution (41 countries)

Data Sources: EPPO Global Database and GBIF.

41
Present
0
Absent
0
Unknown/Other
Country Status State
Armenia Present —
Australia Present —
Austria Present —
Belgium Present —
Belarus Present —
Brazil Present —
Canada Present —
Switzerland Present —
China Present —
Czechia Present —
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Distribution Map (Latitude and longitude coordinates sourced from GBIF.)

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Genomes (1 records)

Data source: NCBI.

Assembly Accession Assembly Level Genome Size(Mb) Contig N50(Kb) Scaffold N50(Kb) BUSCO% Downloads Actions
GCA_000798715.1 Scaffold 52 16 21 -

Transcriptomes (3 records)

Data source: NCBI.

Run ID Tissue Developmental Stage Sex Read Count Location Actions
SRR13696275 - - - 4437155 USA
SRR13696274 - - - 4653052 USA
SRR18712274 - - - 83323651 USA: Oregon

DNA Barcodes (0 records)

View all

Data source: BOLD.

No DNA barcode records available.

Literature