Black blotches on leaves of persimmon (Diospyros virginiana) caused by Cercospora leaf spot fungus Pseudocercospora diospyricola in Lick Creek Park. College Station, Texas, August 12, 2021
Black blotches on the leaf of persimmon (Diospyros virginiana) caused by Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
Black blotches on the leaf of persimmon (Diospyros virginiana) caused by Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 18, 2022
Necrotic spots that develop into angular lesions on underside of a leaf of persimmon (Diospyros virginiana) caused by persimmon Cercospora leaf spot fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
Black blotches on leaves of persimmon caused by Cercospora leaf spot fungus Pseudocercospora diospyricola under a microscope, collected in Bee Creek Park. College Station, Texas, August 31, 2023
Leaves of persimmon (Diospyros virginiana) prematurely turned yellow with black spots of fungus Pseudocercospora diospyricola in Bee Creek Park. College Station, Texas, August 31, 2023
Leaf of persimmon (Diospyros virginiana) prematurely turned yellow with black spots of fungus Pseudocercospora diospyricola on Richards Loop Trail in Sam Houston National Forest. Texas, August 21, 2020
Persimmon leaf blister galls caused by bead gall mite Aceria theospyri on leaves of persimmon (Diospyros virginiana) on Richards Loop Trail in Sam Houston National Forest. Texas, May 26, 2022
Underside of a leaf of curly dock (Rumex crispus) with reddish purple blotches caused by fungus Ramularia rubella in Bee Creek Park. College Station, Texas, February 24, 2023
Close-up of a leaf of curly dock (Rumex crispus) with reddish purple blotches caused by fungus Ramularia rubella in Bee Creek Park. College Station, Texas, February 24, 2023
Persimmon (Diospyros virginiana) in Lake Bryan Park. Bryan, Texas, August 26, 2012
Fruits of persimmon (Diospyros virginiana) in Lake Bryan Park. Bryan, Texas, August 26, 2012
Tissues of a tiny red sphere from underside of leaf of bluebonnet with white spots caused by a fungus(?), collected near Nails Creek Unit of Somerville Lake State Park. Texas, March 8, 2023
Collected fruits of persimmon (Diospyros virginiana) on a log in Birch Creek Unit of Somerville Lake State Park. Texas, September 8, 2012
Leaves of curly dock (Rumex crispus) with reddish purple blotches caused by fungus Ramularia rubella in Bee Creek Park. College Station, Texas, February 24, 2023
Fruit of persimmon (Diospyros virginiana) on north shore of Lake Somerville. Texas, September 27, 2008
Wild persimmon (Diospyros virginiana) near Gan s Creek trail head (blue trail) in Rock Bridge State Park. Columbia, Missouri, September 16, 2005
Fruits of persimmon (Diospyros virginiana) in Lake Bryan Park. Bryan, Texas, September 18, 2009
Yellow spots caused by some rust fungus on a leaf of jumpseed (knotweed, Persicaria virginiana) on floodplain on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 3, 2022
Orange-brown bumps on underside of leaf of Carolina bristlemallow (Modiola caroliniana) caused by rust fungus Puccinia modiolae, taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019
Oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
Close-up of oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
Back lit oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Richards Loop Trail in Sam Houston National Forest. Texas, May 10, 2020
Texas persimmon (Chapote, Diospyros texana) with black fruits in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, July 29, 2009
Greenish-yellow, bell-shaped flower of persimmon (Diospyros virginiana) in Washington-on-the-Brazos State Historic Site. Washington, Texas, May 9, 2009
Oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, June 17, 2018
Blister-like pustules on underside and yellow-orange sunken spots on upper leaf surface of Carolina bristlemallow (Modiola caroliniana) caused by rust fungus Puccinia modiolae, taken from a lawn near apartments on George Bush Drive. College Station, Texas, March 13, 2019
Close up of oak leaf anthracnose (leaf spot fungus, Dicarpella dryina, Tubakia dryina) on Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, June 17, 2018
Leaf of crane s bill (Geranium carolinianum) with a wart caused by fungus Synchytrium geranii on a lawn in Hensel Park. College Station, Texas, March 25, 2021
Flat-topped goldenrod (Euthamia leptocephala) with leaf tar spots caused by gall midge Asteromyia euthamiae with a symbiotic fungus Botryosphaeria dothidea in Lick Creek Park. College Station, Texas, September 29, 2022
Flat-topped goldenrod (Euthamia leptocephala) with leaf tar spots caused by gall midge Asteromyia euthamiae with a symbiotic fungus Botryosphaeria dothidea in Lick Creek Park. College Station, Texas, June 1, 2022
Black beetle on a leaf of woolly croton in Lick Creek Park. College Station, Texas, August 3, 2010
Various leaves with black fungus dots Mycosphaerella leaf spot (Mycosphaerella microsora)? in Lisiy Nos, west from Saint Petersburg. Russia, October 9, 2016
Underside of a leaf of jumpseed (knotweed, Persicaria virginiana) with brown spores of some rust fungus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, July 3, 2022
Underside of a young sycamore leaf in Lick Creek Park. College Station, Texas, August 2, 2019
Brown leaf of mustang grape and yellow leaf of muscadine grape on the ground after recent rains in Lick Creek Park. College Station, Texas, August 19, 2022
Texas persimmon (Chapote, Diospyros texana) in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, August 16, 2013
Spores (in Melzer) of sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) together with conidia of Alternaria leaf spot(?), collected from white powdery stuff with web from underside leaves of squaw-weed (Senecio ampullaceus) in Washington-on-the-Brazos a day before. Texas, March 7, 2023
Brown rotting leaves of mustang grape and black leaf of hackberry on the ground after recent rains in Lick Creek Park. College Station, Texas, August 19, 2022
Rust fungus Coleosporium steviae(?) on underside of a leaf of late-flowering boneset (Eupatorium serotinum) in Lick Creek Park. College Station, Texas, May 15, 2022
Leaf texture of an icy leaf of curly dock near the creek in Bee Creek Park. College Station, Texas, January 4, 2022
Leaf of curly dock (Rumex crispus) with fungus Ramularia rubella under a microscope (in KOH), collected in Bee Creek Park. College Station, Texas, February 24, 2023
Read leaf of curly dock (Rumex crispus) with fungus Ramularia rubella under a microscope in KOH, collected in Bee Creek Park. College Station, Texas, February 24, 2023
Close-up of pale brown pores of a corticioid fungus on a fallen oak leaf on Iron Bridge Trail in Lick Creek Park. College Station, Texas, April 29, 2023
Read leaf of curly dock (Rumex crispus) with fungus Ramularia rubella under a microscope (in Melzer), collected in Bee Creek Park. College Station, Texas, February 24, 2023
Black and red aphids on a leaf of frostweed in Lick Creek Park. College Station, Texas, July 15, 2014
Leaves of yaupon holly (Ilex vomitoria) with black spots caused by rust like fungus on black background in Hensel Park. College Station, Texas, June 5, 2019
Some round structure on a leaf of curly dock (Rumex crispus) with fungus Ramularia rubella under a microscope (in Melzer), collected in Bee Creek Park. College Station, Texas, February 24, 2023
Read leaf of curly dock (Rumex crispus) with fungus Ramularia rubella under a microscope (in Melzer, low magnification), collected in Bee Creek Park. College Station, Texas, February 24, 2023
Brown velvety corticioid fungus Dichostereum effuscatum growing over some old black crust fungus on underside of a fallen water oak in Lick Creek Park. College Station, Texas, March 16, 2023
Underside of a leaf of crane s bill (Geranium carolinianum) with white web-like downy mildew fungus Plasmopara geranii or may be P. pusilla on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
Velvety patches on a birch leaf caused by the velvet erineum gall eriophyid mite in Sosnovka Park. Saint Petersburg, Russia, August 21, 2017
Insect eggs(?) on underside of a leaf in Lick Creek Park. College Station, Texas, October 6, 2020
Leaves of bitter dock (Rumex obtusifolius) with reddish purple blotches caused by fungus Ramularia rubella in Sosnovka Park. Saint Petersburg, Russia, May 30, 2019
Younf leaf of prickly ash(?) in Bee Creek Park. College Station, Texas, March 24, 2023
Irregular, wart-like light green to reddish-green bladder galls on leaf surfaces of poison ivy produced by leaf gall mite Aculops toxicophagus in Bee Creek Park. College Station, Texas, June 10, 2019
Gall from underside of a leaf of squaw-weed (Senecio ampullaceus) in Bee Creek Park. College Station, Texas, April 9, 2024
Young leaf of trumpet vine in Bee Creek Park. College Station, Texas, March 24, 2023
Fleshy gall on a cowberry leaf caused by the fungus Exobasidium vaccinii taken from Posiolok near Vyritsa, south from Saint Petersburg, Russia, July 9, 2017
Black balls of rust fungus Uromyces lespedezae or may be Cercospora from underside of leaves of hairy bush clover collected on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 2022
Underside of a leaf of squaw-weed (Senecio ampullaceus) with sunflower white rust fungus Pustula tragopogonis (Pustula obtusata, Albugo tragopogonis)(?) on a trailway near Birch Creek Unit of Somerville Lake State Park. Texas, March 5, 2023
Reddish purple blotches on leaves of broad leaved dock (Rumex obtusifolius) caused by a plant pathogen fungus Ramularia rubella in Sosnovka Park. Saint Petersburg, Russia, May 30, 2019
Spot-sided coreid bug (Hypselonotus punctiventris) on a leaf of holly tree in TAMU Horticultural Gardens in Texas A and M University. College Station, Texas, May 1, 2009
Young leaves of flame leaf sumac in Lick Creek Park. College Station, Texas, March 10, 2023
Young leaf of paper mulberry (Broussonetia papyrifera) in Bee Creek Park. College Station, Texas, March 24, 2023
Grasshopper on a young leaf of trumpet vine in Lick Creek Park. College Station, Texas, March 31, 2023
Black balls of rust fungus Uromyces lespedezae or may be Cercospora from underside of leaves of hairy bush clover under a microscope at low magnifications collected on Richards Loop Trail in Sam Houston National Forest. Texas, July 10, 2022
Leaves of rough-leaf dogwood (Cornus drummondii) in Lick Creek Park. College Station, Texas, March 7, 2023
Young leaf of Carolina moonseed vine (Cocculus carolinus) in Bee Creek Park. College Station, Texas, April 18, 2023
Venation of sycamore leaf in Lick Creek Park. College Station, Texas, August 2, 2019
Back lit sycamore leaf in Lick Creek Park. College Station, Texas, August 2, 2019
Sugarcane aphids (Melanaphis sacchari) covering underside of a leaf of johnsongrass (Sorghum halepense) in Wolf Pen Creek Park. College Station, Texas, June 21, 2021
Leaf venation of rattan vine (supplejack, Berchemia scandens) in Lick Creek Park. College Station, Texas, March 2, 2023
Venation of a dried leaf of sycamore in Lick Creek Park. College Station, Texas, August 2, 2022
Some narrow-leaf spurge (Euphorbia) in Lick Creek Park. College Station, Texas, August 12, 2021
Basal leaf of stemless evening primrose (Oenothera triloba) with purple spots of spring dieback caused by a fungus Septoria oenotherae near Flag Pond on Lake Somerville Trailway near Nails Creek Unit of Somerville Lake State Park. Texas, March 10, 2021
Leaf cutter ant highway across a sandy road in Lick Creek Park. College Station, Texas, August 24, 2021
Fruits of a narrow-leaf spurge (Euphorbia) in Lick Creek Park. College Station, Texas, August 12, 2021
Leaves of yaupon holly (Ilex vomitoria) with black spots caused by rust like fungus in Hensel Park. College Station, Texas, June 5, 2019
Underside of a leaf of May apple (Podophyllum peltatum) with aecia of mayapple rust fungus (Allodus podophylli, Puccinia podophylli) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 4, 2023
Narrow-leaf water-primrose (Ludwigia octovalvis) in Lick Creek Park. College Station, Texas, August 4, 2021
May apple leaf with yellow spots caused by teleutosori of mayapple rust fungus Allodus podophylli (Puccinia podophylli) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 6, 2024
Shoots of a small tree of persimmon(?) in Bee Creek Park. College Station, Texas, March 24, 2023
Brown rotting leaf of mulberry(?) on the ground after recent rains in Lick Creek Park. College Station, Texas, August 19, 2022
Blooming narrow-leaf water-primrose (Ludwigia octovalvis) in Lick Creek Park. College Station, Texas, August 4, 2021
Yellow spots on a leaf of May apple (Podophyllum peltatum) caused by teleutosori of rust fungus Allodus podophylli (Puccinia podophylli) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, April 10, 2021
Young leaves of a small tree of persimmon(?) in Bee Creek Park. College Station, Texas, March 24, 2023
Tiny bright orange cups on aecia of mayapple rust fungus (Allodus podophylli, Puccinia podophylli) underside of a leaf of May apple (Podophyllum peltatum) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, March 4, 2023
Leaf venation of rusty blackhaw viburnum (Viburnum rufidulum) in Lick Creek Park. College Station, Texas, March 2, 2023
Red velvety patches on a birch leaf caused by the eriophyid mite in Sosnovka Park. Saint Petersburg, Russia, June 29, 2017
Olive brown rotting leaf of green ash on the ground after recent rains in Lick Creek Park. College Station, Texas, August 19, 2022
Web-like silvery fungus on underside of a magnolia leaf in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, October 20, 2019
Underside of a leaf with coltsfoot rust gall fungus, Puccinia poarum, in Sosnovka Park. Saint Petersburg, Russia, May 27, 2019
Pale brown resupinate polypore mushroom Xylodon flaviporus on a fallen water oak leaf on Iron Bridge Trail in Lick Creek Park. College Station, Texas, April 29, 2023
Ramularia leaf spot fungus (Ramularia rubella) on curly dock (Rumex crispus) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
Hornworm of Banded Sphinx Moth (Eumorpha fasciatus) with a leaf of water-primrose (Ludwigia) in Lick Creek Park. College Station, Texas, August 12, 2021
Ivy leaf Morning glory (Ipomoea cordatotriloba) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Bee Creek Park. College Station, Texas, August 26, 2024
Zoned pattern of web-like silvery fungus on underside of a magnolia leaf in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, October 20, 2019
Close-up of Ramularia leaf spot fungus (Ramularia rubella) on curly dock (Rumex crispus) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
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