 |
3167-01. Black aphids on leaves of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, June 3, 2022Similar picturesLarge thumbnails | Use small thumbnails | View as slideshow |
|
3167-01. Black aphids on leaves of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, June 3, 2022Similar picturesLarge thumbnails | Use small thumbnails | View as slideshow |
 Frostweed (Verbesina virginica) with black aphids in Lick Creek Park. College Station, Texas, June 9, 2019  Red and black aphids on a plant of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, August 12, 2021  Frostweed (Verbesina virginica) with aphids in Lick Creek Park. College Station, Texas, July 15, 2014  Red aphids on a shoot of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, July 18, 2020  Yellow leaves of frostweed (Verbesina virginica) with a rust fungus Coleosporium viguierae(?) on a pipeline right of way in Lick Creek Park. College Station, Texas, August 19, 2022  Frostweed (Verbesina virginica) with yellow and brown leaves with a rust fungus Coleosporium viguierae(?) on a pipeline right of way in Lick Creek Park. College Station, Texas, August 19, 2022  Dry leaves of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, September 8, 2023  Spores of a rust fungus Coleosporium viguierae(?) (under a microscope, in KOH solution) found on leaves of frostweed (Verbesina virginica) from a pipeline right of way in Lick Creek Park a day before. College Station, Texas, August 18, 2022  Spores of a rust fungus Coleosporium viguierae(?) (under a microscope, in Lugol solution) found on leaves of frostweed (Verbesina virginica) on a pipeline right of way in Lick Creek Park a day before. College Station, Texas, August 18, 2022  Frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, September 26, 2022  Frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, October 3, 2022  Frostweed (Verbesina virginica) at frosty morning in Lick Creek Park. College Station, Texas, January 3, 2022  Frostweed (Verbesina virginica) after hard freeze in Lick Creek Park. College Station, Texas, January 3, 2022  Inflated stems of frostweed (Verbesina virginica) at cold morning in Lick Creek Park. College Station, Texas, January 3, 2022  Frostweed (Verbesina virginica) after hard freeze on sewer line right of way in Lick Creek Park. College Station, Texas, January 3, 2022  Frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, October 11, 2013  Frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, September 22, 2021  Frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, September 20, 2020  Frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, September 24, 2012  Frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, August 26, 2021  Frostweed (Verbesina virginica) on sewer line right of way in Lick Creek Park. After a heavy frost at night frostweed shows its ribbons of frost (as in ribbon candy). College Station, Texas, January 9, 2010  Flowers of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, September 20, 2020  Ice flowers on frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, December 1, 2020  Flowers of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, October 11, 2013  Dry plant of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, September 13, 2023  Dry plants of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, September 8, 2023  Crab spider on frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, September 22, 2021  Frostweed (Verbesina virginica) with a love bug (Plecia) in Lick Creek Park. College Station, Texas, September 20, 2020  Bumblebee on flowers of frostweed (Verbesina virginica) in Lick Creek Park. College Station, Texas, October 23, 2013  Frostweed (Verbesina virginica) on Post Oak Trail in Lick Creek Park. College Station, Texas, September 7, 2009  Frostweed (Verbesina virginica) after hard freeze in Lick Creek Park. College Station, Texas, January 10, 2024  White flowers of frostweed (Verbesina virginica) on Raccoon Run Trail in Lick Creek Park. College Station, Texas, August 23, 2020  Inflated stems of frostweed (Verbesina virginica) at cold morning in Lick Creek Park. College Station, Texas, December 1, 2020  Frostweed (Verbesina virginica) at frosty morning on a pipeline forest cutting in Lick Creek Park. College Station, Texas, December 1, 2020  Flowers of frostweed (Verbesina virginica) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024  Frostweed (Verbesina virginica) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 9, 2024  Frostweed (Verbesina virginica) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight from Lick Creek Park. College Station, Texas, September 11, 2024  Frostweed (Verbesina virginica) after hard freeze on sewer line right of way in Lick Creek Park. Frozen sap extruded from stem. College Station, Texas, January 9, 2010  Black and red aphids on a leaf of frostweed in Lick Creek Park. College Station, Texas, July 15, 2014  Frostweed (Verbesina virginica) after hard freeze on sewer line right of way in Lick Creek Park. Frost ribbons sprouting from young plants. College Station, Texas, January 9, 2010  Frostweed (Verbesina virginica) after hard freeze on sewer line right of way in Lick Creek Park. The stems split and exude sap that freezes into fascinating shapes. College Station, Texas, January 9, 2010  Frostweed (Verbesina virginica) after hard freeze on sewer line right of way in Lick Creek Park. Petals of frost flowers are very delicate and will break when touched. College Station, Texas, January 9, 2010  Frostweed (Verbesina virginica) after hard freeze on sewer line right of way in Lick Creek Park. Sap within its stalks bursts forth to form icy formations along its lower stems. College Station, Texas, January 9, 2010  Frostweed (Verbesina virginica) after hard freeze on sewer line right of way in Lick Creek Park. Frothy texture of frozen sap extruded from stem looks like cotton candy. College Station, Texas, January 9, 2010  Frostweed (Verbesina virginica) after hard freeze on sewer line right of way in Lick Creek Park. Layers of ice are formed into exquisite patterns that curl into "petals" that resemble flowers. College Station, Texas, January 9, 2010  Frostweed (Verbesina virginica) after hard freeze on sewer line right of way in Lick Creek Park. Thin layers of ice are often formed into exquisite patterns that curl into "petals" that resemble flowers. College Station, Texas, January 9, 2010  Frostweed (Verbesina virginica) on Park Hudson Trail. College Station, Texas, August 6, 2014  Frostweed (Verbesina virginica) after hard freeze on sewer line right of way in Lick Creek Park. Petals of "frost-flowers" are easily melted and are usually visible in the early morning or in shaded areas. College Station, Texas, January 9, 2010  Frostweed (Verbesina virginica) 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, September 23, 2024  Frostweed (Verbesina virginica) on sewer line right of way in Lick Creek Park. At the first hard freeze, even though the plant has gone to seed and looks dead, the roots are still active. The sap freezes, splits open the stem and forms these "frost-flowers". College Station, Texas, January 9, 2010  Shoot of frostweed (Verbesina virginica) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, April 3, 2022  Red aphids on frostweed in Lick Creek Park. College Station, Texas, August 12, 2021  Red aphids on a leaf of frostweed in Lick Creek Park. College Station, Texas, July 15, 2014  Frostweed with aphids on Park Hudson Trail. College Station, Texas, June 30, 2014  Frost-weed (Verbesina virginica) on Iron Bridge Trail in Lick Creek Park. College Station, Texas, September 12, 2008  Frostweed leaves in Lick Creek Park. College Station, Texas, June 10, 2012  Frostweed (Verbesina virginica) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, November 17, 2019  Crab spider on frostweed (Verbesina virginica) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, October 31, 2021  Black aphids on curly dock (Rumex) in a ditch in Bee Creek Park. College Station, Texas, April 5, 2022  Large number of black aphids on curly dock (Rumex) in Bee Creek Park. College Station, Texas, April 5, 2022  Frostweed (Verbesina virginica) with an ant on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, October 1, 2020  Black and red bug on frostweed on Raccoon Run Trail in Lick Creek Park. College Station, Texas, August 23, 2020  Dried curled leaves of elm and black willow in Lick Creek Park. College Station, Texas, August 7, 2022  Young leaves of frostweed in Lick Creek Park. College Station, Texas, March 16, 2023  Brown dried leaves of black willow on the ground in Lick Creek Park. College Station, Texas, August 2, 2022  Brown curled leaves of elm and black willow on the ground in Lick Creek Park. College Station, Texas, August 2, 2022  Brown dried leaves of elm and black willow on the ground in Lick Creek Park. College Station, Texas, August 2, 2022  Ice flowers on frostweed in Lick Creek Park. College Station, Texas, January 3, 2022  Ice flowers on frostweed in Lick Creek Park. College Station, Texas, February 5, 2022  Feathery ice crystals on frostweed in Lick Creek Park. College Station, Texas, February 5, 2022  Ice crystals on a frostweed stems at morning in Lick Creek Park. College Station, Texas, January 3, 2022  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  Curly ice crystals grown on frostweed after hard freeze in Lick Creek Park. College Station, Texas, January 3, 2022  Curled leaves of beautyberry in Lick Creek Park. College Station, Texas, June 22, 2022  Drying leaves of beautyberry in Lick Creek Park. College Station, Texas, June 17, 2022  Black spores of slime mold Fuligo cinerea in KOH solution, collected a day before in Lick Creek Park. College Station, Texas, June 18, 2022  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  Dry leaves of black cherry(?) in Lick Creek Park. College Station, Texas, September 13, 2023  Spores of resupinate polypore mushroom Fuscoporia from black locust, collected in Lick Creek Park 1/25/2022. College Station, Texas, February 6, 2022  Young leaves of black cherry in Lick Creek Park. College Station, Texas, March 16, 2023  Young leaves of black cherry in Lick Creek Park. College Station, Texas, March 10, 2023  Asteromyia gall midge fungus (Botryosphaeria dothidea) on leaves of flat-topped goldenrod (Euthamia leptocephala) in Lick Creek Park. College Station, Texas, June 1, 2022  Black aphids on a stalk of lettuce (Lactuca)(?) at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, May 31, 2022  Brown rotting leaves together with yellow leaves of winged elm on the ground after recent rains in Lick Creek Park. College Station, Texas, August 19, 2022  Leaves of Canadian black snakeroot (Sanicula canadensis) in Lick Creek Park. College Station, Texas, March 31, 2024  Sugarcane aphids (Melanaphis sacchari) abundant on johnsongrass (Sorghum halepense) in Wolf Pen Creek Park. College Station, Texas, June 21, 2021  Close-up of sugarcane aphids (Melanaphis sacchari) on johnsongrass (Sorghum halepense) in Wolf Pen Creek Park. College Station, Texas, June 21, 2021  Small dark colored aphids on frostweed at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, July 30, 2021  Shoot of frostweed in Lick Creek Park. College Station, Texas, March 10, 2023  Ice flowers on frostweed in Lick Creek Park. College Station, Texas, December 1, 2020  Sugarcane aphids (Melanaphis sacchari, Hemiptera: Aphididae) on johnsongrass (Sorghum halepense) in Wolf Pen Creek Park. College Station, Texas, June 21, 2021  Frostweed stem with ice crystals in Lick Creek Park. College Station, Texas, December 1, 2020  Details of ice flowers on frostweed in Lick Creek Park. College Station, Texas, December 1, 2020  Ice crystals on frostweed seeds in Lick Creek Park. College Station, Texas, December 1, 2020  Caterpillar of black swallowtail butterfly (Papilio polyxenes) in Lick Creek Park. College Station, Texas, April 18, 2022  Sugarcane aphids (Melanaphis sacchari) covering underside of a leaf of johnsongrass (Sorghum halepense) in Wolf Pen Creek Park. College Station, Texas, June 21, 2021  Black dots of fruiting structures of a fungus Ophiodothella vaccinii on leaves of farkleberry (Vaccinium arboreum) in Lick Creek Park. College Station, Texas, October 9, 2018  Black dots of fruiting structures of a fungus Ophiodothella vaccinii on leaves of farkleberry (Vaccinium arboreum) in Lick Creek Park. College Station, Texas, August 2, 2019  Dry black eyed susan flower in Lick Creek Park. College Station, June 15, 2008 |