cedar hawthorn rust

Listing 1 - 10 from 20 for cedar hawthorn rust

Cedar Rust Diseases of Ornamental Plants, HYG-3055-96
... cedar quince rust and cedar hawthorn rust can be a major problem on hawthorns and cedar apple rust is a major economic consideration in commercial apple production. Diagnostic Symptoms Cedar apple rust ... Juniper and Hawthorn with resistance to rust diseases. Juniperus Crataegus (Hawthorn) Malus (Crab Apple) Cedar Apple and Hawthorn Rust: Cedar Hawthorn Rust: Cedar Hawthorn Rust: Resistant: Resistant ...
ohioline.osu.edu

Kemper Center Problem Categories
... cedar (Juniperus virginiana) Cedar-apple rust on eastern red cedar (Juniperus virginiana) Cedar-hawthorn rust on hawthorn (Crataegus) Hawthorn leaves (Crataegus) showing pustules of cedar-hawthorn rust Close-up of pustules of cedar-hawthorn rust on hawthorn (Crataegus) Cedar-hawthorn rust on hawthorn leaves and fruit (Crataegus) Cedar-quince rust on hawthorn ...
www.mobot.org

TreeHelp.com: Trees: Species: Washington Hawthorn
... for seed availability Flowers and Leaf of Washington Hawthorn G. Lumis Fruit of Washington Hawthorn G. Lumis Form of Washington Hawthorn G. Lumis Scientific Name: Crataegus phaenopyrum (formally known ... excessive exposure to salts (either road or sea salt). Problems Prone to rust diseases such as Cedar Hawthorn Rust and Cedar Quince Rust. Flowers can be extremely malodorous. Thorns can be a safety ...
www.treehelp.com

Cedar-Hawthorn Rust
... Cedar-Hawthorn Rust Evergreen Trees & Shrubs Deciduous Trees & Shrubs Perennial Flowers En Español Cedar-Hawthorn Rust Cedar-hawthorn rust is caused by a fungal pathogen called Gymnosporangium globosum. This disease occurs on eastern red cedar, Rocky Mountain juniper, southern red cedar ...
www.urbanext.uiuc.edu

Saskatoon-Juniper Rust
... -Juniper Rust One of the favorite shrubs we like to grow is the saskatoon, Amelanchier alnifolia. A member of the rose family, it is closely related to the apple, hawthorn and mountain ash. One of the diseases very common to the saskatoon is caused by the rust fungi Gymnosporiangium nelsonii. This is the Prairie version of cedar apple rust. This very ...
gardenline.usask.ca

Rust of Apple, HYG-3024-92
... susceptible to cedar-quince rust during the period from early bloom through third cover. Cedar-Hawthorn Rust on Apple Leaf spots similar to those caused by cedar-apple rust develop ... on hawthorns. Causal Organisms Cedar-apple rust is caused by the fungus Gymnosporangium juniperi-virginianae, cedar-quince rust by Gymnosporangium clavipes, and cedar-hawthorn rust by Gymnosporangium globosum. The ...
ohioline.osu.edu

Eastern Red Cedar
... fields. Some botanists do not separate J. virginiana from silicicola. The eastern red cedar is not a true cedar (genus Cedrus), it is actually a variety of juniper. It occurs naturally ... in early spring, from Phomopsis in summer. Three rust diseases seen most often are cedar-apple rust, hawthorn rust, and quince rust. The most common is cedar-apple rust. On Juniper the first two diseases form galls ...
www.bonsai-bci.com

Questions On Cedar
... . Do you think I should be concerned about cedar apple rust? The cedars would be southeast of the apples ... cedar-apple rust fungus. This is a disease that needs an alternate host to complete its life cycle—which in this case is an apple or a member of the apple family (hawthorn ... .) A: Those growths are the fruiting bodies of the cedar-apple rust fungi. Your junipers are acting as the alternate host ...
www.ext.nodak.edu

Ornamental Pathology Facts
... cedar, Chinese, and prostrate junipers Cedar-hawthorn rust hosts: (Gymnosporangium globosum) Apple, crabapple, hawthorn, quince, pear, and shadbush Eastern red cedar, Rocky Mountain juniper, and prostrate junipers Cedar-quince rust hosts: (Gymnosporangium clavipes) Apple, crabapple, mountain ash, cotoneaster, hawthorn ...
www.ppath.cas.psu.edu

Cedar-Quince Rust
... cedar-apple rust and cedar-hawthorn rust for additional information on rust diseases. More than one type of rust may be present on many of the plant hosts discussed. Although these rusts are quite similar, only cedar-hawthorn and cedar ...
www.urbanext.uiuc.edu

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