chyropteras favoriter
Bilder / Ljud
Observatör
tzaddiBeskrivning
First emergence of the season.
Revisited several times to chronicle the bloom.
Bilder / Ljud
Vad
Azaleasvulst (Exobasidium japonicum)Observatör
stevescottwilsonBeskrivning
Growing on a pink flowered azalea in a tub
Bilder / Ljud
Observatör
annieliveoakBeskrivning
On Rhododendron indicum. Woodland slope on Washington Garden Club property.
Bilder / Ljud
Observatör
meravBeskrivning
gall on Western Azalea (Rhododendron occidentale) posted here - https://www.inaturalist.org/observations/30850636
Bilder / Ljud
Observatör
yerbasantaBeskrivning
Light brown growth on Quercus agrifolia leaf underside. Spores in 1st photo?
Chasmothecia(?) in photo 2 matches appearance seen in this paper?:
https://journals.ashs.org/downloadpdf/journals/hortsci/57/10/article-p1289.pdf
Photos 6, 7, 10, 11 appear to show the ornamented chasmothecia/perithecia hyphal appendages:
https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/erysiphaceae
https://onlinelibrary.wiley.com/doi/10.1111/efp.12742
https://www.sciencedirect.com/science/article/abs/pii/S095375620700130X
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Golovinomyces or Erysiphe?
Amended note (11/19):
Probably not downy mildew based on seemingly not being restricted to lower surface?
Other similar observations in the area on same host (Quercus agrifolia):
https://www.inaturalist.org/observations/191495698
https://www.inaturalist.org/observations/169798850
https://www.inaturalist.org/observations/168032122
https://www.inaturalist.org/observations/167625572
Research notes from:
https://pubmed.ncbi.nlm.nih.gov/30743683/
"White superficial conidia of the powdery mildew fungus occurred on adaxial and abaxial surfaces. However, the white powdery growth was more abundant on the adaxial surface. Leaf symptoms commonly appeared white from May to October. Along with the typical white powdery mildew, spot and/or necrotic symptoms with irregular violet-to-wine red surfaces were also frequently observed on overwintered leaves"
"Major genera including Cystotheca, Erysiphe, Microsphaera, and Phyllactinia have been reported to cause powdery mildews on Quercus plants. Until now, 22 Erysiphe species including E. abbreviata, E. alphitoides, E. calocladophora, E. gracilis, E. polygoni, and E. quercicola have been reported to cause powdery mildews on Quercus spp."
Bilder / Ljud
Observatör
nancyasquithBeskrivning
On Grindelia stricta, I believe.
The two leaves in photo 1 probably show two different stages of the same gall.
Bilder / Ljud
Vad
Gallmyggor (Familj Cecidomyiidae)Observatör
flammulatedBeskrivning
Galls along midribs of young Oregon Ash leaves. The gall part of each leaf feels hard and thickened to the touch, and folds upward to form a pocket. I opened a couple of them and found several small larvae inside the pockets (see photos).
This looks a lot like the galls described here:
https://www.gallformers.org/gall/3035
Bilder / Ljud
Vad
Spindelblomster (Neottia cordata)Observatör
apetroneBeskrivning
Forked labellum present. Flower parts in three. Two green bracts.
Bilder / Ljud
Vad
Rovflugor (Familj Asilidae)Observatör
jcsullivanBeskrivning
I couldn't find whatever emerged from this dead tree trunk along the river. There were six exoskeletons left behind, still hanging out of the snag.
Bilder / Ljud
Vad
Amerikansk Asp (Populus tremuloides)Observatör
ribes2018Beskrivning
Lane Community College Native Plant Landscape surrounding Bldg 16:
Bilder / Ljud
Vad
Leddjur (Fylum Arthropoda)Observatör
giantcicadaBeskrivning
deformed-looking bud growth on doug fir, only guessing that it's gall-related
Bilder / Ljud
Vad
Släkte DasineuraObservatör
giantcicadaBeskrivning
galled leaved on upper leaves of Urtica dioica; compare https://www.inaturalist.org/observations/61687845, https://www.inaturalist.org/observations/140209479
Bilder / Ljud
Observatör
birdernaturalistBeskrivning
On Quaking Aspen – gall or disease from virus or bacterium? I tried unrolling the edges and found no eggs or larvae.
Bilder / Ljud
Vad
Slätsporig Svedjeskål (Plicaria endocarpoides)Observatör
danmortonBeskrivning
Growing on burnt soil.
Bilder / Ljud
Vad
Fenusa ulmiObservatör
harsiparkerBeskrivning
On elm (Ulmaceae: Ulmus sp.)
Unfortunately, I neglected to take a nice photo series of the plant itself at the time that I took these shots, but I'm fairly certain it is the same species of elm which Chris documented in this observation:
https://www.inaturalist.org/observations/13220032
Bilder / Ljud
Vad
Släkte LiriomyzaObservatör
harsiparkerBeskrivning
One of many leafmines present on Scotch Broom (Fabaceae: Cytisus scoparius) growing in meadow/field habitat. Photo 1 shows the upper surface of leaf; Photo 2 shows the underside of leaf; Photo 3 is the upper surface of leaf backlit with flashlight from cellphone.
Bilder / Ljud
Vad
Nässelgallmygga (Dasineura urticae)Observatör
aruejohnsBeskrivning
Could just be leaf discoloration, but seems to match description. Hand for focus, not touching!
Bilder / Ljud
Observatör
eralversonBeskrivning
Vickery County Park. The ancient one managed to survive the January 2024 ice storm. See also https://www.inaturalist.org/observations/24242948
Bilder / Ljud
Vad
Släkte FeronObservatör
dwirtalaBeskrivning
syn.Andricus pedicellatus on Quercus garryana
Bilder / Ljud
Vad
Släkte FeronObservatör
augustjacksonBeskrivning
Likely sexgen gall of this genus. Similar to Feron pattersonae, but agamic galls of that species are not present in the region. Possibly the sexgen of our undescribed plate gall.
Bilder / Ljud
Vad
Taphrina confusaObservatör
guidingguidaBeskrivning
Fungal gall on Chokecherry flowers
Bilder / Ljud
Vad
Lindhorn (Eriophyes tiliae)Observatör
sedgequeenBeskrivning
On what may be leaves of Tilia x europea.
Bilder / Ljud
Observatör
bradmoonBeskrivning
With phoretic nest parasite beetles, which have their own observation here
For more information about this species, see articles here, here, and here.
