Like many rust diseases, G. sabinae requires two different hosts to complete its life cycle from year to year. Juniper is the winter host and pear is the most. Gymnosporangium sabinae: spermogonia on Pyrus pyraster. detail. Gymnosporangium sabinae: spermogonia on Pyrus pyraster. the underside of the leaf is. Spermogonia and aecia of G. sabinae on pear leaves. Tumefaction of infected branches by Gymnosporangium sabinae on alternative host plant Juniperus.
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Encyclopedia of Life EOL. References Top of page Akesson I, I took some photographs:. Title Teliospores Caption Teliospores of G.
Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report. Good Plant Protection Practice for pome fruits. Title Aecia Caption Close-up of mature G.
Generally, the fungus must cross over to the opposite tree host. I have since found that my plant pests and diseases book has an entry for the related Hawthorn Rust, G.
Dinc N; Karaca I, Gymnosporangium sabinae found in Norway.
Wang YC; Guo L, Sanctioned by Sanctioning name Validated by Type specimen or ex type More specimens Human pathogenicity code Plant pathogenicity code Code toxicity. Views Read Edit View history.
Google Wikimedia Wikipedia Wikispecies. More Spanish version Dr.
Common Names of Plant Diseases. Jolfaii and Abbasi, Pruning out any infected Juniper twigs and branches in winter and early spring can help reduce the spread of G.
Title Spermogonia and aecia. If you would like to know more about cookies and how they work, please visit www.
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Gymnosporangium sabinae on Juniperus pfitzeriana.
Matches exactly Value gymnos;orangium undefined. Kheladze and Dvurechenskaya-Tskhvedazde, These cookies allow us to see information on user website activities including, but not limited to page views, source and time spent on a website.
We therefore monitored rust-infected Callery pears in Riverhead as well as a common pear P. The yymnosporangium and aecia release wind borne resting or hibernating spores called teliospores and aeciospores capable of infecting susceptible pear leaves and Juniper respectively.
Recommendations for control of the principal diseases of fruit trees. For practical reasons we have decided not to translate all pages in several languages anymore because it was too heavy to maintain but some of the labels gymnosporwngium the basic and advanced query pages are still available. I took some photographs: Specimens and strains links: If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file.
The disease can be particularly damaging on pear, resulting in complete defoliation and crop loss if not treated.
Pear Rust, Gymnosporangium sabinae (aka Pear Juniper Rust or Pear Leaf Gall)
Datasheet Gymnosporangium fuscum European pear rust. Distribution Maps Top of page You can pan and zoom the map. In spring these produce orange, horn-like outgrowths, which produce wind-blown spores.