Extract from Wikipedia article: Gymnosporangium juniperi-virginianae is a plant pathogen that causes cedar-apple rust. In virtually any location where apples or crabapples (Malus) and Eastern red-cedar (Juniperus virginiana) coexist, cedar apple rust can be a destructive or disfiguring disease on both the apples and cedars. Quince and hawthorn are the most common host and many species of juniper can substitute for the Eastern red cedars.
Cedar apple rust fungus Gymnosporangium juniperi-virginianae on a twig of red cedar near a road along north shore of Lake Somerville near Birch Creek Unit Somerville Lake State Park. Texas, March 14, 2018 Lake Somerville Trailway, Somerville, TX 77879, USA
Cedar-apple gall (fungus Gymnosporangium juniperi-virginianae) on a twig of red cedar at Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, January 25, 2019 127 Parkview Dr, Somerville, TX 77879, USA
Cedar-apple gall (fungus Gymnosporangium juniperi-virginianae) with gelatinous protrusions on Eastern red cedar (Juniperus virginiana) in Wolf Pen Creek Park. College Station, Texas, March 13, 2019 1000 Holleman Dr E, College Station, TX 77840, USA
Cedar-apple gall (fungus Gymnosporangium juniperi-virginianae) with gelatinous protrusions from Eastern red cedar (Juniperus virginiana) in Wolf Pen Creek Park. College Station, Texas, March 13, 2019 1000 Holleman Dr E, College Station, TX 77840, USA
Fungus Gymnosporangium juniperi-virginianae on Eastern red cedar (Juniperus virginiana) in Wolf Pen Creek Park. College Station, Texas, March 13, 2019 1000 Holleman Dr E, College Station, TX 77840, USA
Cedar-apple gall (fungus Gymnosporangium juniperi-virginianae) with gelatinous protrusions on a twig of red cedar (Juniperus virginiana) in Wolf Pen Creek Park. College Station, Texas, March 13, 2019 1000 Holleman Dr E, College Station, TX 77840, USA
Close up of gelatinous protrusions of cedar-apple gall (fungus Gymnosporangium juniperi-virginianae) on Eastern red cedar (Juniperus virginiana) in Wolf Pen Creek Park. College Station, Texas, March 13, 2019 1000 Holleman Dr E, College Station, TX 77840, USA
Gelatinous protrusions of cedar-apple gall (fungus Gymnosporangium juniperi-virginianae) on a twig of Eastern red cedar (Juniperus virginiana) in Wolf Pen Creek Park. College Station, Texas, March 13, 2019 1000 Holleman Dr E, College Station, TX 77840, USA
Cedar-apple gall (fungus Gymnosporangium juniperi-virginianae) on a twig of Eastern red cedar (Juniperus virginiana) in Wolf Pen Creek Park. College Station, Texas, March 13, 2019 1000 Holleman Dr E, College Station, TX 77840, USA