Cedar apple rust

Photo by University of Georgia Plant Pathology Archive, Bugwood.org

Only infects apples and cedar (Juniperus virginiana), and requires both hosts to complete its life cycle
Infected fruit and leaves develop yellow-orange lesions on the surface and in some varieties spore-producing tufts also develop
Lesions are raised and can crack as the fruit enlarges
Stems may develop a slight swelling
Galls with finger-like projections are produced on cedar hosts
Spread with infected plant material or by wind dispersal

High priority pest of: Apples and pears

Scientific name: Gymnosporangium juniperi-virginianae
EPPRD Category:
Life Form: Fungus