#plasmopara
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jeremybartlett.bsky.social
Yellow Rattle, Rhinanthus major, thriving but with many lower leaves infected with the downy mildew Plasmopara densa.

Sweet Briar Marshes Norfolk Wildlife Trust Reserve today.

#WildFlowerHour #Fungi #FungiFriends
Yellow Rattle, Rhinanthus major. Yellow Rattle, Rhinanthus major, covering the grazing marsh. Yellow Rattle, Rhinanthus major, lower leaves infected with the downy mildew Plasmopara densa. Left two leaves show under side; right two leaves show upper side. Downy mildew Plasmopara densa. x1000, stained with disclosing solution.
June 6, 2026 at 7:01 PM
bitheolaidhe.bsky.social
I was very excited to find Pignut growing out of a cowpat today that had its undescribed Plasmopara. It's amazing what shows up in a quadrat!
#FungiFriends #WildPlantDisease
May 6, 2026 at 6:46 PM
bitheolaidhe.bsky.social
Keep an eye out this time of year for Plasmopara densa on seedlings of Yellow Rattle: yellowed, vein-delimited patches of the leaf have white down on the underside. It is extremely common!
#FungiFriends #WildPlantDisease
April 15, 2026 at 6:31 PM
smartalyk.bsky.social
DAY 337
SPECIES 337 - Plasmopara viticola
STAGE: Protists
MEDIUM: Arches Paper. Chromatek watercolor, Sakura pen

P. viticola is a plant pathogenic water mold that causes grapevine downy mildew, a devastating disease

#sciart #watercolor #painting #art #paint #protist #eukaryotic #protistsonsky
May 8, 2026 at 7:17 AM
ruhrpottpilze.bsky.social
Plasmopara geranii-silvatici ex Geranium pratense

#Geraniumpratense #Geranium #WiesenStorchschnabel #meadowcranesbill #Géraniumdesprés #Plasmoparageraniisilvatici #Plasmopara #DownyMildew #FalscherMehltau #Pilz #Fungus #Phytopathology #nature #FungiFriends #Phytopathology
July 22, 2025 at 9:50 AM
ruhrpottpilze.bsky.social
Plasmopara pusilla ex Geranium pratense

#Geraniumpratense #Geranium #WiesenStorchschnabel #meadowcranesbill #Géraniumdesprés #Plasmoparapusilla #Plasmopara #FalscherMehltau #DownyMildew #Phytopathology #fungi #Nature #FungiFriends
May 29, 2024 at 4:28 PM
bitheolaidhe.bsky.social
I had a great day in Dublin yesterday recording with Chris Preston. He instantly spotted things I've been looking for all year! Particularly exciting was our find of a Plasmopara on Smyrnium, a new host (and possibly taxon) for Britain and Ireland (pic 3; previously known from Italy). #FungiFriends
a deadnettle with white patches of a powdery mildew on its leaves Neoërysiphe galeopsidis s.s. ex Lamium purpureum a rounded, lobed leaf with a circular beige leaf spot with tiny black dots in it Septoria cymbalariae ex Cymbalaria muralis a closeup of part of a toothed leaf with whitish down in vein-delimited patches Plasmopara ex Smyrnium olusatrum a trilobate leaf with small orange pustules Puccinia oxalidis ex Oxalis sp.
March 12, 2025 at 11:36 AM
fungifirst.bsky.social
Saw some downy mildew (caused by Plasmopara viticola) on my wild grape earlier today! First time seeing it in person in my yard! #oomycete
July 8, 2025 at 10:37 PM
planthealthprog.bsky.social
Grape downy mildew is a major threat to juice grapes. Nancy Sharma et al. found that #Plasmopara viticola was consistently controlled by mandipropamid, cyazofamid, and fenamidone but not by QoIs: https://doi.org/10.1094/PHP-10-25-0241-SC
September 29, 2026 at 10:47 PM
flaviaward.bsky.social
O Antônio quer saber o q tá acontecendo com a videira da mãe dele. Míldio, fungo Plasmopara. Ixe, ataca a planta inteira.
(Esses casos deles tá me dando arrepio só de ver. Tá 30 graus aqui as 8 da matina).

Então Antônio, tem q prevenir. Ai não tem uma solução caseira não? Eu tô com trauma dessas…
November 16, 2025 at 12:21 PM
rpilze.masto.nu.ap.brid.gy
Plasmopara geranii-silvatici ex Geranium pratense

#geraniumpratense #geranium #wiesenstorchschnabel #meadowcranesbill #Géraniumdesprés #plasmoparageraniisilvatici #plasmopara #downymildew #falschermehltau #pilz #fungus #phytopathology #nature #fungifriends #Phytopathology
July 22, 2025 at 9:55 AM
inrae-save.bsky.social
📌Une 3ème offre de thèse à SAVE :

"Effets des infrastructures agroécologiques sur l’épidémiologie de Plasmopara viticola et intérêts pour la gestion des épidémies de mildiou de la vigne"

Toutes les infos ici : shorturl.at/fW8ZD
April 9, 2025 at 1:06 PM
bitheolaidhe.bsky.social
The downy mildew Plasmopara densa has finally arrived on the Yellow Rattle in our field. I wonder if this is the end of the Rattle's hyperdominance... #FungiFriends
a patch of yellow rattle seedlings - a pale green plant with opposite leaves in pairs surrounded by darker green plants of the same species the underside of an oval leaf with rounded teeth, with patches of white down around the veins
March 31, 2025 at 9:29 PM
maherreracorzo.bsky.social
Exciting news! The Oomycete Molecular Genetics Network (OMGN) Meeting 2025 is now open for registration! #OMGN2025 it will be just before #MPMI2025 in Cologne #Oomycetes #PlantPathology #Phytophthora #Hyaloperonospora #Pythium #Plasmopara #Albugo #Bremia

🔗 omgn2025.sciencesconf.org/?lang=en
Annual conference of the Oomycete Molecular Genetic Network - 2025 - Sciencesconf.org
omgn2025.sciencesconf.org
March 18, 2025 at 12:37 PM
biorxiv-plants.bsky.social
Pyramided resistance ensures grapevine (Vitis spp.) protection during high downy mildew (Plasmopara viticola) epidemic pressure. https://www.biorxiv.org/content/10.64898/2026.02.11.705294v1
February 14, 2026 at 8:03 AM
jxbotany.bsky.social
📢 NEW ISSUE ALERT 📢
🔬 Issue 4 is out now 🔬

📔 On the cover: Microscopic observation of stomatal immunity and hypersensitive response during Plasmopara viticola infection in a leaf of resistant grapevine (photo credit: Wei Zheng).

🔗 Read the full issue: academic.oup.com/jxb...
#PlantScience 🧪
The cover of Vol 77 | Issue 4 | 2026 of the Journal of Experimental Botany. Rust coloured banners border the top and bottom of the page and in the centre is an image of green grapevine cells under a microscope, and the stomata guard cells are visible. Photo legend: "Microscopic observation of stomatal immunity and hypersensitive response during Plasmopara viticola infection in a leaf of the resistant grapevine Vitis riparia cv. Qingdahean (photo credit: Wei Zheng). See Ji et al., pp. 1324–1337."
February 12, 2026 at 2:10 PM
bitheolaidhe.bsky.social
this one most likely wouldn't differ from those, Plasmopara nivea is a dustbin taxon for undescribed Plasmopara on Apiaceae
March 12, 2025 at 12:37 PM
niccolot.bsky.social
@sigridneuhauser.bsky.social
Was für eine Tischdekoration!

Plasmopara viticola, das Esca-Syndrom, Erysiphe necator (was die noch gar nicht gesehen haben) und
das Phytoplasma Candidatus phytoplasma vitis.

Aber das Weingut ist absolut zu empfehlen! Die Krankheiten am Wein haben alle.
October 5, 2023 at 9:25 PM
emmanuelarcher.bsky.social
Merci pour ce site superbe , juste une chose quand on clique sur oidium dans les maladies / croissance , il est écrit plasmopara viticola entre parenthèses , il faudra corriger en Ersyphe necator et remettre le plasmopara derrière le mildiou ☺️
May 13, 2026 at 6:42 AM
biorxivpreprint.bsky.social
Layered stomatal immunity contributes to resistance of Vitis riparia against downy mildew Plasmopara viticola https://www.biorxiv.org/content/10.1101/2025.02.23.639706v1
February 25, 2025 at 4:14 PM
phypapers.bsky.social
Phylogenomics of Plasmopara halstedii Reveals Genomic Regions Associated With the Breakdown of Sunflower Downy Mildew Resistance Genes https://pubmed.ncbi.nlm.nih.gov/41700370/
February 18, 2026 at 2:47 AM
phypapers.bsky.social
Phylogenomics of Plasmopara halstedii Reveals Genomic Regions Associated With the Breakdown of Sunflower Downy Mildew Resistance Genes https://pubmed.ncbi.nlm.nih.gov/41700370/
February 19, 2026 at 10:01 AM
phypapers.bsky.social
Phylogenomics of Plasmopara halstedii Reveals Genomic Regions Associated With the Breakdown of Sunflower Downy Mildew Resistance Genes https://pubmed.ncbi.nlm.nih.gov/41700370/
February 19, 2026 at 4:20 AM
biorxivpreprint.bsky.social
Phyllosphere microbiome-based biocontrol solution against the filamentous pathogens Botrytis cinerea and Plasmopara viticola in grapevine https://www.biorxiv.org/content/10.1101/2025.02.10.637449v1
February 11, 2025 at 10:03 AM
plantdiseasej.bsky.social
Special Report: “Multiplexed Real-Time and Digital PCR Tools to Differentiate Clades of Plasmopara viticola Causing Downy Mildew in Grapes,” by Lexi Heger et al. Read the article to learn more: https://doi.org/10.1094/PDIS-01-25-0173-SR
November 25, 2025 at 5:05 PM