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Gymnosporangium 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.
Gymnosporangium is a genus of heteroecious plant-pathogenic fungi which alternately infect members of the family Cupressaceae, primarily species in the genus Juniperus (), and members of the family Rosaceae in the subfamily Amygdaloideae (apples, pears, quinces, shadbush, hawthorns, rowans and their relatives).
Cedar-apple rust disease, for example, can persist despite removal of one of the hosts since spores can be disseminated from long distances. The severity of cedar-apple rust disease can be managed by removal of basidiospore producing galls from junipers or the application of protective fungicides to junipers. [24]
Gymnosporangium globosum is a heteroecious rust fungus that requires two hosts to complete its life cycle. Its telial stage occurs on eastern red cedar, Rocky Mountain juniper, southern red cedar, and other common junipers while its aecial stage will be found on apple, crabapple, hawthorne, and occasionally on pear, quince, and serviceberry.
American hawthorne rust Gymnosporangium globosum: Cedar apple rust Gymnosporangium juniperi-virginianae: Japanese apple rust Gymnosporangium yamadae: Pacific Coast pear rust Gymnosporangium libocedri: Quince rust Gymnosporangium clavipes... Side rot Phialophora malorum: Silver leaf Chondrostereum purpureum: Sooty blotch complex Peltaster fructicola
This page was last edited on 28 April 2020, at 03:53 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
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Cedar rust may refer to: Gymnosporangium juniperi-virginianae, or Cedar-apple rust; Gymnosporangium clavipes, or Cedar-quince rust; Gymnosporangium globosum, ...