pavelsink's Favorites
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What
Peony Powdery Mildew (Erysiphe paeoniae)Observer
maricel-patinoDescription
On Paeonia officinalis. Garden.
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What
Downy Currant Rust (Puccinia ribis)Observer
juhatuomolaDescription
On Ribes rubrum
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What
Apple Leaf Blotch (Diplocarpon mali)Observer
pavelsinkDescription
ex Malus domestica
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What
Elder Whitewash (Lyomyces sambuci)Observer
bjoernsDescription
ex Sambucus nigra
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What
Podospora excentricaObserver
bjoernsDescription
on sheep dung
asci 8 spored, spores around 35 µm long, perithecia with tufts of hair
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What
Oak Anthracnose (Apiognomonia errabunda)Observer
bernardwieserDescription
Auf Quercus rubra
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What
Quince Leaf Blight (Diplocarpon mespili)Observer
maricel-patinoDescription
Diplocarpon mespili also called Entomosporium m. because the conidium resembles an insect. Conidia are made of cells arranged symmetrically. Conidia consist of a larger basal cell, an upper cell, and 2 or more smaller, lateral, hyaline cells that form a cross pattern. The apical cell is globose with an obtuse apex; the basal cell is short cylindrical with a truncate base; and the lateral cells are globose. Apical and lateral cells each have a single, cellular, unbranched, flexuous appendage. On Cydonia oblonga (quince). Backyard.
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What
Grape Flea Beetle (Altica chalybea)Observer
kenthebirdDescription
On porcelainberry
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What
Grape Powdery Mildew (Erysiphe necator)Observer
bjoernsDescription
ex Vitis vinifera
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What
Leaf Spot of Ivy (Boeremia hedericola)Observer
fayrnhawkDescription
Phoma hedericola. Spores simple, healing, very small.
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Genus ErysipheObserver
atsushi_nakajima_cirqueDescription
ヤブマメうどんこ病
Erysiphe glycines→Erysiphe diffusa
https://www.gene.affrc.go.jp/databases-micro_pl_diseases_detail.php?id=2660
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Reed Rust (Puccinia phragmitis)Observer
bjoernsDescription
ex Rumex obtusifolius
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Puccinia striiformisObserver
symbiioticaDescription
Growing on Leymus triticoides in an open meadow area in the 2021 Caldor fire burn scar, Eldorado NF
Orange rust common on grass clumps
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Tomato Leaf Mold (Passalora fulva)Observer
wallacechenDescription
Fulvia fulvum
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Potato Cyst Nematode (Globodera rostochiensis)Observer
kenwDescription
Potato Cyst Nematode (PCN)
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Rowan Crown (Gymnosporangium cornutum)Observer
bjoernsDescription
ex Juniperus communis
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What
European Mistletoe Hyperparasitic Fungus (Sphaeropsis visci)Observer
tiggrxDescription
Growing on Viscum album.
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What
Phytomyza loniceraeObserver
dejaymDescription
Larvae mines in Common Honeysuckle Lonicera periclymenum.
No larvae nor adults at this time
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What
Albugo lepigoniObserver
dejaymDescription
A small, almost invisible organism.
An obligate parasite of Spergularia (Sea Spurrey), causing ‘white rust’ or ‘white blister’.
Sporangiophores appear on the host's stem, causing it to swell and burst. The white powdery spores are then dispersed by wind and rain.
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What
Synchytrium taraxaciObserver
dejaymDescription
Not very common, not often noticed rust-type (fungal) infection of Dandelion (Taraxacum) leaves. Distorts and discolours the leaf.
Small pustules (sori) occur as the fungus matures
Long lasting through the season and rain.
See https://bladmineerders.nl/parasites/fungi/chytridiomycota/chytridiales/synchytrium/synchytrium-taraxaci/
and
https://www.fungi.org.uk/viewtopic.php?t=177
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White Mold (Sclerotinia sclerotiorum)Observer
juhatuomolaDescription
On Helianthus annuus
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Psilocybe serbicaObserver
c0rvusc0raxDescription
Jihomoravský kraj/South Moravian Region, Czechia
