Gymnosporangium juniperi-virginianae, Cedar Apple Rust Fungus on Apple Tree Leaf, Storrs, CT 8.2.18, 10x (Back-Side)
$19.00 – $400.00Gymnosporangium juniperi-virginianae is a plant pathogen that causes cedar-apple rust.[1] 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.