Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

david99

Date

April 16, 2024 09:06 PM PDT

Description

On figwort

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

trufflepig_nz

Date

December 17, 2023 05:28 PM NZDT

Description

On vervain.

Photos / Sounds

What

Umbellifer Powdery Mildew (Erysiphe heraclei)

Observer

dirkm

Date

August 20, 2023 12:02 PM CEST

Description

host plant: Pastinaca sativa

Photos / Sounds

Observer

huang__huang

Date

November 2023

Place

Private

Photos / Sounds

Observer

savvaszafeiriou

Date

July 12, 2020 10:18 AM +13

Description

On Castanea sativa

Photos / Sounds

What

Black Oak (Quercus velutina)

Observer

rynxs

Date

August 2023

Photos / Sounds

Observer

brendonreidy1

Date

October 3, 2020 04:56 PM UTC

Photos / Sounds

What

Ash Anthracnose (Plagiostoma fraxini)

Observer

erinhenson

Date

October 11, 2022 09:43 PM EDT

Photos / Sounds

Observer

andreyllanos

Date

March 11, 2020 09:33 AM -05

Photos / Sounds

What

Honeysuckle Powdery Mildew (Erysiphe lonicerae)

Observer

carnifex

Date

December 26, 2022 04:54 PM CET

Description

Tags

Photos / Sounds

What

Ascomycete Fungi (Phylum Ascomycota)

Observer

reago

Date

November 7, 2023 11:40 AM PST

Description

on Rhaphiolepis indica leaves (?) maybe

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

yuriysokolov73

Date

August 12, 2022 04:59 PM MSK

Description

Delphinium

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

toxmace

Date

March 23, 2024 01:06 PM EDT

Photos / Sounds

What

American Sycamore (Platanus occidentalis)

Observer

tom1548

Date

November 3, 2023 03:09 PM EDT

Description

Guessing

Photos / Sounds

What

Morning-Glories (Genus Ipomoea)

Observer

m_naturlisch

Date

February 15, 2024 01:32 PM WAT

Photos / Sounds

What

Morning-Glories (Genus Ipomoea)

Observer

albertogg

Date

February 10, 2009 11:06 AM CST

Photos / Sounds

What

Morning-Glories (Genus Ipomoea)

Observer

michellem_

Date

January 4, 2023 10:09 AM -05

Description

Debido a la forma de su hoja, debe pertenecer a una variedad dentro de esta especie.

Photos / Sounds

What

Beech Erineum Mite (Acalitus ferrugineum)

Observer

jasondombroskie

Date

October 12, 2023 02:08 PM EDT

Photos / Sounds

What

Beech Erineum Mite (Acalitus ferrugineum)

Observer

currenfrasch

Date

June 2023

Photos / Sounds

What

Beech Erineum Mite (Acalitus ferrugineum)

Observer

willfreyman

Date

July 8, 2023 01:35 PM CDT

Photos / Sounds

What

Beech Erineum Mite (Acalitus ferrugineum)

Observer

jerseygina

Date

May 22, 2023 11:20 AM EDT

Photos / Sounds

What

Beech Erineum Mite (Acalitus ferrugineum)

Observer

esummerbell

Date

May 28, 2023 06:36 PM EDT

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

neontetraploid

Date

June 19, 2023 07:30 AM PDT

Description

on California croton

Photos / Sounds

What

Pea Powdery Mildew (Erysiphe pisi var. pisi)

Observer

nschwab

Date

October 4, 2023 06:06 PM CEST

Description

ex Trifolium pratense

Photos / Sounds

Observer

gen_ok

Date

August 18, 2015 12:39 PM MSK

Description

on Euphrasia sp.

Photos / Sounds

Observer

jamie-aa

Date

March 16, 2024 02:31 PM GMT

Description

on Bear's Breeches, Acanthus mollis

Photos / Sounds

Observer

georgiamies

Date

October 9, 2020 11:48 AM EDT

Description

Powdery mildew. Growing on leaves of a sunflower plant. White color and very widespread. I collected a sample.

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

gwark

Date

March 25, 2024 09:04 PM AKDT

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

matt227

Date

October 8, 2023 10:51 AM CDT

Description

On figwort

Photos / Sounds

Observer

jaykeller

Date

December 8, 2018 03:31 PM PST

Photos / Sounds

Observer

sedge

Date

April 11, 2020 11:45 AM CDT

Photos / Sounds

Date

September 9, 2023 10:25 AM CST

Description

Sobre hoja de Erythrina americana - colorín.

Fungi

Photos / Sounds

What

Hongos (Kingdom Fungi)

Observer

francisco3_

Date

December 20, 2013

Photos / Sounds

What

Oak Powdery Mildew (Erysiphe alphitoides)

Observer

drew_meyer

Date

August 21, 2022 11:41 AM PDT

Description

Host is Quercus sadleriana

Photos / Sounds

What

Oak Powdery Mildew (Erysiphe alphitoides)

Observer

chloe_and_trevor

Date

September 5, 2022 08:12 AM PDT

Description

On Quercus sadleriana. Or something nearby.

Photos / Sounds

Observer

dvdkssrw

Date

December 6, 2019 02:58 PM CST

Description

On what I took to be Euphorbia graminea.

Photos / Sounds

Observer

kai_schablewski

Date

June 25, 2023 04:33 PM CEST

Description

ex Ribes spec.

Photos / Sounds

What

Life (Life)

Observer

ldygwn2

Date

September 3, 2021 02:11 PM CDT

Description

Speckling damage, yellowing and dying off of leaves

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

trufflepig_nz

Date

January 21, 2024 06:57 PM NZDT

Description

On wall speedwell.

Photos / Sounds

Observer

karla111

Date

October 23, 2018 11:32 PM CDT

Description

Reino fungí

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

jackson_chu

Date

October 7, 2023 02:33 PM PDT

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

fmcghee

Date

May 24, 2022 01:17 PM PDT

Photos / Sounds

What

Acalypha Powdery Mildew (Salmonomyces acalyphae)

Observer

jocean

Date

December 3, 2023 09:18 AM -05

Photos / Sounds

Observer

saherron

Date

January 26, 2024 10:20 AM EST

Description

Systemic mildew on leaves of Quercus myrtifolia.

Photos / Sounds

No photos or sounds

What

Roses, Elms, Figs, and Allies (Order Rosales)

Observer

lizodu

Date

October 20, 2023 02:54 PM EDT

Photos / Sounds

Observer

savvaszafeiriou

Date

April 11, 2020 11:48 AM +13

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

ziggypop74

Date

August 6, 2022 10:28 AM EDT

Description

Cucurbits DM

Photos / Sounds

What

Spindletree Powdery Mildew (Erysiphe euonymicola)

Observer

chilipossum

Date

December 6, 2023 12:41 PM PST

Photos / Sounds

What

Maple Mildew (Sawadaea bicornis)

Observer

entoandrew

Date

July 2021

Description

On Maple?

Photos / Sounds

Observer

afsj

Date

December 7, 2018 01:24 PM +05

Description

Pega pega

Photos / Sounds

Observer

natujuano

Date

December 7, 2020 05:06 PM EST

Photos / Sounds

Observer

pitiisparamensis

Date

January 11, 2021 09:44 AM EST

Photos / Sounds

Observer

daniel1758

Date

March 5, 2023 05:16 PM -05

Photos / Sounds

Date

October 12, 2020 06:29 AM -05

Photos / Sounds

Observer

yerbasanta

Date

June 8, 2018 04:47 PM PDT

Description

On top of phacelia malvifolia leaves

Photos / Sounds

Observer

hassea

Date

September 9, 2022 01:45 PM -05

Photos / Sounds

Observer

jacrol

Date

June 26, 2021 10:02 AM UTC

Photos / Sounds

Observer

dylantomtaylor

Date

January 30, 2024 12:41 PM CST

Description

Immature asci and clubshaped spores

Photos / Sounds

Observer

matt_pulk

Date

June 7, 2023 01:27 PM EDT

Photos / Sounds

Observer

jacopo_b91

Date

March 27, 2022 04:49 PM CEST

Description

On Nonea lutea sp.

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

esdena

Date

March 23, 2023 05:52 PM CST

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

tamiranda

Date

March 29, 2012 02:53 AM HST

Description

Em Citrus × limonia

Photos / Sounds

Observer

zihaowang

Date

June 20, 2023 10:12 AM EDT

Description

On Viburnum recognitum

Photos / Sounds

Observer

imasongster

Date

July 28, 2021 05:37 PM EDT

Description

on Monkey Flower(Mimulus alatus)

Photos / Sounds

What

Plantain Mildew (Golovinomyces sordidus)

Observer

vcharny

Date

October 10, 2022 10:53 AM CDT

Photos / Sounds

Date

May 6, 2022 03:19 PM CST

Description

on Sonchus oleraceus

Photos / Sounds

What

Rose Powdery Mildew (Podosphaera pannosa)

Observer

carnifex

Date

September 13, 2020 11:46 AM SAST

Description

on Prunus laurocerasus
Leaf underside from pic 5 onwards

Photos / Sounds

Date

February 4, 2024 10:13 AM CST

Photos / Sounds

What

Whiteflies (Family Aleyrodidae)

Date

July 2017

Description

Whitefly eggs

Photos / Sounds

What

Dawn Redwood (Metasequoia glyptostroboides)

Observer

sus_scrofa

Date

June 1, 2023 06:00 PM EDT

Description

this small dawn redwood didn't seem planted to me, though maybe it was. it was growing in an unmanaged, forested part of the park, in the shade of taller trees, among wild flowers and shrubs like goldenrods, viburnums, honeysuckle, etc, under a thick layer of leaf litter

Photos / Sounds

What

Shagbark Hickory (Carya ovata)

Observer

tatumschaff

Date

September 30, 2023 02:01 PM CDT

Description

woods up north at my cabin

Photos / Sounds

Observer

pavelsink

Date

November 15, 2022 01:42 PM CET

Description

ex Hordeum vulgare

Crop disease

Photos / Sounds

Observer

yuri_bengus

Date

June 14, 2023 10:20 AM EEST

Photos / Sounds

Observer

ressenpreis

Date

March 2019

Description

This observation is for the white stuff living ON the grasses.

Photos / Sounds

Observer

mike_steinmann

Date

October 18, 2023 04:04 PM CEST

Photos / Sounds

What

Barberry Powdery Mildew (Erysiphe berberidis)

Observer

lindernia-w

Date

August 27, 2021 01:00 PM CEST

Description

Erysiphe berberidis, O (Echter Mehltau) an Berberis

Photos / Sounds

What

Wild Leek (Allium tricoccum)

Observer

bluebellprince

Date

February 9, 2024 02:28 PM EST

Photos / Sounds

Observer

almantas

Date

August 4, 2019 03:46 PM +03

Photos / Sounds

What

Tar Spot Fungi (Genus Rhytisma)

Observer

ryannadiak

Date

September 9, 2020 05:49 PM MDT

Photos / Sounds

Observer

gwark

Date

September 6, 2017 09:29 AM AKDT

Photos / Sounds

What

White Oak (Quercus alba)

Observer

oldgrowthearth

Date

October 10, 2023 11:31 AM EDT

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

plantlesbian

Date

November 5, 2023 04:07 PM EST

Photos / Sounds

Observer

yuriysokolov73

Date

August 14, 2023 04:27 PM MSK

Description

Василёк Луговой Centaurea jacea

Photos / Sounds

Observer

dante_lozano

Date

December 12, 2023 04:16 PM CST

Photos / Sounds

What

American Chestnut (Castanea dentata)

Observer

peterroy

Date

October 2023

Photos / Sounds

Observer

julio

Date

February 17, 2018 12:51 PM CST

Photos / Sounds

Observer

birdernaturalist

Date

June 28, 2010 02:06 PM -04

Photos / Sounds

What

Allegheny Hawthorn (Crataegus alleghaniensis)

Observer

bama_botany

Date

September 8, 2023 12:23 PM CDT

Photos / Sounds

What

Powdery Mildews (Family Erysiphaceae)

Observer

gsalvatierra

Date

December 2, 2022 04:06 PM PST

Photos / Sounds

Observer

danielmesa1

Date

January 14, 2024 03:24 PM -05

Photos / Sounds

Observer

birdernaturalist

Date

May 15, 2014 01:37 PM -05

Photos / Sounds

Observer

stephenluk

Date

November 6, 2022 04:25 PM EST

Photos / Sounds

Observer

zapoteca

Date

May 29, 2023 12:49 PM CST

Photos / Sounds

Observer

luis_fer1

Date

August 26, 2023 01:33 PM -05

Photos / Sounds

Observer

diegoamaya

Date

October 1, 2023 12:28 PM -05

Photos / Sounds

Observer

johndreynolds

Date

December 11, 2022 12:59 PM PST

Description

On Bigleaf Maple. Old IOCO townsite, Port Moody, BC, Canada

Photos / Sounds

Observer

adrianvirgen

Date

December 2023

Photos / Sounds

What

Grape Erineum Mite (Colomerus vitis)

Observer

jarrett5

Date

May 2018

Description

Fungus attacking grape vine. Will cause fruit to rot.

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