Leaf spots on our Lemon Balm (Melissa officinalis), caused by Septoria melissae.
#Fungi #FungiFriends
#Fungi #FungiFriends
September 11, 2025 at 5:28 PM
Leaf spots on our Lemon Balm (Melissa officinalis), caused by Septoria melissae.
#Fungi #FungiFriends
#Fungi #FungiFriends
Septoria heraclei on Heracleum sphondylium at Killard. This is one of the toothpaste-type Septoria species which extrude their conidia in a white amorphous mass. I've been looking out for this one for a while!
#FungiFriends #WildPlantDisease
#FungiFriends #WildPlantDisease
July 7, 2026 at 10:47 AM
Septoria heraclei on Heracleum sphondylium at Killard. This is one of the toothpaste-type Septoria species which extrude their conidia in a white amorphous mass. I've been looking out for this one for a while!
#FungiFriends #WildPlantDisease
#FungiFriends #WildPlantDisease
May 12, 2025 at 12:24 PM
Septoria bellidis ex Bellis perennis
#Bellisperennis #Bellis #Gänseblümchen #Daisy #Pâquerette #pratolinacomune #margarita #Septoria #Septoriabellidis #phytopathology #mushroom #mushrooms #fungus #fungi #pilz #pilze #champignons #champignon #nature #natur #FungiFriends
#Bellisperennis #Bellis #Gänseblümchen #Daisy #Pâquerette #pratolinacomune #margarita #Septoria #Septoriabellidis #phytopathology #mushroom #mushrooms #fungus #fungi #pilz #pilze #champignons #champignon #nature #natur #FungiFriends
March 19, 2026 at 8:31 AM
Septoria bellidis ex Bellis perennis
#Bellisperennis #Bellis #Gänseblümchen #Daisy #Pâquerette #pratolinacomune #margarita #Septoria #Septoriabellidis #phytopathology #mushroom #mushrooms #fungus #fungi #pilz #pilze #champignons #champignon #nature #natur #FungiFriends
#Bellisperennis #Bellis #Gänseblümchen #Daisy #Pâquerette #pratolinacomune #margarita #Septoria #Septoriabellidis #phytopathology #mushroom #mushrooms #fungus #fungi #pilz #pilze #champignons #champignon #nature #natur #FungiFriends
It´s all about phytoparasites!
Puccinia sp + maybe Septoria sp (top of pic) ex Mahonia sp.
still trying to figure out what´s going on here...
#fungifriends #mycology #phytoparasite #puccinia
Puccinia sp + maybe Septoria sp (top of pic) ex Mahonia sp.
still trying to figure out what´s going on here...
#fungifriends #mycology #phytoparasite #puccinia
May 17, 2025 at 3:59 PM
It´s all about phytoparasites!
Puccinia sp + maybe Septoria sp (top of pic) ex Mahonia sp.
still trying to figure out what´s going on here...
#fungifriends #mycology #phytoparasite #puccinia
Puccinia sp + maybe Septoria sp (top of pic) ex Mahonia sp.
still trying to figure out what´s going on here...
#fungifriends #mycology #phytoparasite #puccinia
Septoria sp. on Buddleja davidii. No Septoria are known from this host species. There is a vaguely similar Septoria, S. merrillii, described from B. asiaticae in the Philippines but the spores are longer and narrower.
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#CityNatureChallenge
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#CityNatureChallenge
April 28, 2025 at 10:54 AM
Septoria sp. on Buddleja davidii. No Septoria are known from this host species. There is a vaguely similar Septoria, S. merrillii, described from B. asiaticae in the Philippines but the spores are longer and narrower.
#FungiFriends
#CityNatureChallenge
#FungiFriends
#CityNatureChallenge
📃🍃 #OurNewPaper accepted in @plantdiseasej.bsky.social : Genetic diversity and divergence of global and French populations of #SeptoriaSteviae, the causative agent of Septoria leaf spot in #SteviaRebaudiana
🔗 apsjournals.apsnet.org/doi/10.1094/...
🔗 apsjournals.apsnet.org/doi/10.1094/...
Genetic diversity and divergence of global and French populations of Septoria steviae, the causative agent of Septoria leaf spot in Stevia rebaudiana | Plant Disease
This study investigates the genetic diversity of worldwide Septoria steviae, the
causal agent of Septoria leaf spot on Stevia rebaudiana, focusing on French and Argentine
populations. Multi-Locus Sequ...
apsjournals.apsnet.org
October 12, 2026 at 9:32 AM
📃🍃 #OurNewPaper accepted in @plantdiseasej.bsky.social : Genetic diversity and divergence of global and French populations of #SeptoriaSteviae, the causative agent of Septoria leaf spot in #SteviaRebaudiana
🔗 apsjournals.apsnet.org/doi/10.1094/...
🔗 apsjournals.apsnet.org/doi/10.1094/...
Today's leaf spot is this undescribed Septoria on Buddleja. It appears to be very common but there are almost no records outside of Belfast – I'd appreciate it if people could keep an eye out and send me their specimens!
#FungiFriends #WildPlantDisease
#FungiFriends #WildPlantDisease
April 28, 2026 at 10:38 PM
Today's leaf spot is this undescribed Septoria on Buddleja. It appears to be very common but there are almost no records outside of Belfast – I'd appreciate it if people could keep an eye out and send me their specimens!
#FungiFriends #WildPlantDisease
#FungiFriends #WildPlantDisease
Two species on Oleander in central London today: a leaf spot (either Septoria or Boeremia) and a bacterial gall (Pseudomonas savastanoi pv nerii).
#FungiFriends
#FungiFriends
July 17, 2025 at 7:20 PM
Two species on Oleander in central London today: a leaf spot (either Septoria or Boeremia) and a bacterial gall (Pseudomonas savastanoi pv nerii).
#FungiFriends
#FungiFriends
Septoria aegopodii on leaves of Ground Elder (Aegopodium podagraria).
Swannington church, Norfolk. Seen on yesterday's bike ride.
bladmineerders.nl/parasites/fu...
#Fungi #FungiFriends #FungiFriday
Swannington church, Norfolk. Seen on yesterday's bike ride.
bladmineerders.nl/parasites/fu...
#Fungi #FungiFriends #FungiFriday
October 10, 2025 at 12:17 PM
Septoria aegopodii on leaves of Ground Elder (Aegopodium podagraria).
Swannington church, Norfolk. Seen on yesterday's bike ride.
bladmineerders.nl/parasites/fu...
#Fungi #FungiFriends #FungiFriday
Swannington church, Norfolk. Seen on yesterday's bike ride.
bladmineerders.nl/parasites/fu...
#Fungi #FungiFriends #FungiFriday
December 26, 2024 at 7:20 AM
New OA Letter: "Septoria tritici blotch resistance gene Stb15 encodes a lectin receptor-like kinase" rdcu.be/ed0YU
The 3 Stb genes, effective against different pathogen isolates, encode diverse RLKs with extracellular domains potentially involved in sugar binding.
The 3 Stb genes, effective against different pathogen isolates, encode diverse RLKs with extracellular domains potentially involved in sugar binding.
March 18, 2025 at 10:31 AM
New OA Letter: "Septoria tritici blotch resistance gene Stb15 encodes a lectin receptor-like kinase" rdcu.be/ed0YU
The 3 Stb genes, effective against different pathogen isolates, encode diverse RLKs with extracellular domains potentially involved in sugar binding.
The 3 Stb genes, effective against different pathogen isolates, encode diverse RLKs with extracellular domains potentially involved in sugar binding.
I made my 3000th iNaturalist observation today: Septoria escalloniae, a common leaf spot on Escallonia.
#FungiFriends
#FungiFriends
June 3, 2025 at 6:55 PM
I made my 3000th iNaturalist observation today: Septoria escalloniae, a common leaf spot on Escallonia.
#FungiFriends
#FungiFriends
Chaetomium globosum suppresses Septoria tritici blotch in wheat, reducing disease damage and offering a natural alternative as fungicide resistance rises.
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October 9, 2026 at 5:50 PM
Chaetomium globosum suppresses Septoria tritici blotch in wheat, reducing disease damage and offering a natural alternative as fungicide resistance rises.
#Septoria tritici blotch resistance gene Stb15 encodes a lectin receptor-like kinase
doi.org/10.1038/s414...
doi.org/10.1038/s414...
March 17, 2025 at 9:04 PM
#Septoria tritici blotch resistance gene Stb15 encodes a lectin receptor-like kinase
doi.org/10.1038/s414...
doi.org/10.1038/s414...
Plant-plant interactions in #wheat mixtures modulate mean and variance of susceptibility to #Septoria tritici blotch @lauramathieu.bsky.social doi.org/10.1093/jxb/...
September 16, 2025 at 6:44 AM
Plant-plant interactions in #wheat mixtures modulate mean and variance of susceptibility to #Septoria tritici blotch @lauramathieu.bsky.social doi.org/10.1093/jxb/...
Septoria villarisae ex Nymphoides peltata
#Nymphoidespeltata #Nymphoides #Seekanne #fringedwaterlily #limnantemio #falsonenúfaramarillo #Septoriavillarisae #Septoria #mushroom #mushrooms #fungus #fungi #pilz #pilze #champignons #champignon #nature #natur #FungiFriends #Phytopathology
#Nymphoidespeltata #Nymphoides #Seekanne #fringedwaterlily #limnantemio #falsonenúfaramarillo #Septoriavillarisae #Septoria #mushroom #mushrooms #fungus #fungi #pilz #pilze #champignons #champignon #nature #natur #FungiFriends #Phytopathology
July 14, 2025 at 12:30 PM
Septoria villarisae ex Nymphoides peltata
#Nymphoidespeltata #Nymphoides #Seekanne #fringedwaterlily #limnantemio #falsonenúfaramarillo #Septoriavillarisae #Septoria #mushroom #mushrooms #fungus #fungi #pilz #pilze #champignons #champignon #nature #natur #FungiFriends #Phytopathology
#Nymphoidespeltata #Nymphoides #Seekanne #fringedwaterlily #limnantemio #falsonenúfaramarillo #Septoriavillarisae #Septoria #mushroom #mushrooms #fungus #fungi #pilz #pilze #champignons #champignon #nature #natur #FungiFriends #Phytopathology
Get ready for sugaring season!
This is Grease Bucket (Garlic Cookies x Banana Punch). We are really loving the sweet, tropical nose she delivers. She smells of light brown sugar and sweet tropical island fruits. She has proven herself to be resistant to mold, mildew, and septoria…
This is Grease Bucket (Garlic Cookies x Banana Punch). We are really loving the sweet, tropical nose she delivers. She smells of light brown sugar and sweet tropical island fruits. She has proven herself to be resistant to mold, mildew, and septoria…
December 25, 2025 at 4:30 PM
Get ready for sugaring season!
This is Grease Bucket (Garlic Cookies x Banana Punch). We are really loving the sweet, tropical nose she delivers. She smells of light brown sugar and sweet tropical island fruits. She has proven herself to be resistant to mold, mildew, and septoria…
This is Grease Bucket (Garlic Cookies x Banana Punch). We are really loving the sweet, tropical nose she delivers. She smells of light brown sugar and sweet tropical island fruits. She has proven herself to be resistant to mold, mildew, and septoria…
This undescribed Septoria on Bluebell seems to be quite common. Worth looking out for at the minute, it makes these distinctive brown leaf spots with pycnidia visible as round tan bumps under the hand lens. This is on Hybrid Bluebell at Oxford Island on Friday.
#WildPlantDisease #FungiFriends
#WildPlantDisease #FungiFriends
April 5, 2026 at 10:55 AM
This undescribed Septoria on Bluebell seems to be quite common. Worth looking out for at the minute, it makes these distinctive brown leaf spots with pycnidia visible as round tan bumps under the hand lens. This is on Hybrid Bluebell at Oxford Island on Friday.
#WildPlantDisease #FungiFriends
#WildPlantDisease #FungiFriends
Septoria scabiosicola
On Knautia dipsacifolia
04/06/2024
E Bosnia-Herzegovina
On Knautia dipsacifolia
04/06/2024
E Bosnia-Herzegovina
June 4, 2026 at 9:01 AM
Septoria scabiosicola
On Knautia dipsacifolia
04/06/2024
E Bosnia-Herzegovina
On Knautia dipsacifolia
04/06/2024
E Bosnia-Herzegovina
Fungal leaf spot of Magnolia likely caused by a species of Cladosporium, Coniothyrium or Septoria. Spots are brown, tan or red. Mature trees may show leaf spots annually, but rarely is it a serious problem. Remove the diseased leaves that have dropped & dispose of them properly 🧪
February 25, 2025 at 5:50 AM
Fungal leaf spot of Magnolia likely caused by a species of Cladosporium, Coniothyrium or Septoria. Spots are brown, tan or red. Mature trees may show leaf spots annually, but rarely is it a serious problem. Remove the diseased leaves that have dropped & dispose of them properly 🧪
ONE OF THE TOMATO PLANTS ALSO HAS SEPTORIA LEAF BLIGHT I THINK SO I DID SOME SCORCHED EARTH PRUNING AND SEPARATED IT FROM THE OTHERS
June 28, 2025 at 12:03 AM
ONE OF THE TOMATO PLANTS ALSO HAS SEPTORIA LEAF BLIGHT I THINK SO I DID SOME SCORCHED EARTH PRUNING AND SEPARATED IT FROM THE OTHERS
Still fighting PM, mites, and now septoria on one plant. But things are still progressing! Defoliated 3/6 plants yesterday and hitting the other 3 tomorrow. Then will do another spray. I sacrificed some small lower branches on the plant with septoria but it’s pretty huge so I’m not too bummed.
September 7, 2025 at 9:29 PM
Still fighting PM, mites, and now septoria on one plant. But things are still progressing! Defoliated 3/6 plants yesterday and hitting the other 3 tomorrow. Then will do another spray. I sacrificed some small lower branches on the plant with septoria but it’s pretty huge so I’m not too bummed.
Septoria leaf spot on common centaury (#Centaurium erythraea) likely caused by #Septoria erythraeae, found in the tiny old cemetery of Notre-Dame du Désert overlooking the "Raspes du Tarn" (Verdalle, FR).
July 28, 2025 at 5:06 PM
Septoria leaf spot on common centaury (#Centaurium erythraea) likely caused by #Septoria erythraeae, found in the tiny old cemetery of Notre-Dame du Désert overlooking the "Raspes du Tarn" (Verdalle, FR).