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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Pear Rust, Gymnosporangium sabinae (aka Pear Juniper Rust or Pear Leaf Gall)

Searching for Gymnosporangium sabinae has yielded more information on the RHS website. CMI, ; Habib et al. Common Names of Plant Diseases. Epidemiology, cultivar susceptibility and chemical control of Gymnosporangium fuscum in British Columbia.

Gymnosporangium sabinae – Wikipedia

A revised taxonomic account of Gymnosporangium Note scars caused by telial horns. First report of European pear rust pear trellis rust caused by Gymnosporangium sabinae on ornamental pear Pyrus calleryana in Virginia.

First report of the pear trellis rust fungus, Gymnosporangium sabinae, on Pyrus calleryana ‘Bradford’ and ‘Chanticleer’ and P. Plant Disease Reporter, 62 8: Spores called aeciospores are produced from the fungal lantern-shaped growths which protrude from the blisters on the underside of gymnoxporangium pear leaf gymnosporangiumm become airborne and infect junipers.

Plant Disease, 96 9: I took some photographs:. Title ‘Telia horns’ Caption ‘Telia horns’ of G. Growth Stages Top of page Vegetative growing stage. Don’t need the entire report? From Wikipedia, the free encyclopedia.


Taxonomic studies on Gymnosporangium in China. Pear Rust, early October leaf lowerside. It is replaced each time there is a query done. The geographic locations of affected trees described herein suggest that the trellis rust fungus is well-established across New York, and has spread undetected since its introduction.

Title Spermogonia Caption Close-up of G. It is one of many types of rust fungi affecting plants. They are sent to a computer by website operators or third parties.

Good Plant Protection Practice for pome fruits.

The spores then reinfect Pear trees. By using this site, you agree to the Terms of Use and Privacy Policy. Acta Mycologica Sinica, 4 1: The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Topical Meetings and Workshops. Obligate or homotypic synonyms: The Worcestershire Record article includes vymnosporangium photograph of the fungus on Juniperus sabina. Revue Suisse de Viticulture, d’Arboriculture et d’Horticulture, 29 5: This page was last edited on 6 Novemberat Studies on the development of pear trellis rust.

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Cookies are small text files that contain a string of characters and uniquely identifies a browser. Volker Croythe copyright holder of this work, hereby publishes it under the following license:. Articles with ‘species’ microformats. Given the widespread planting of Callery pear and occurrence of susceptible Juniperus spp.


A native of Eurasia and North Africa, G. Simple search Basic search Advanced search Search type specimens Search thesaurus Search bibliography. 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.

Specimens and strains links: Schweizerische Zeitschrift fur Obst- und Weinbau, Kheladze and Dvurechenskaya-Tskhvedazde, Google cookies and technologies Google Analytics: Pruning out any infected Juniper twigs and branches in winter and early spring can help reduce the spread of G.

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. This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it.

In the spring after a rain or heavy dew, the galls on the juniper produce tiny dark horn-like growths that become covered with an orange-brown gelatinous mass called telia. I took some photographs: Register new name species, genus, family, etc Register new type specimen of existing taxa epitype, neotype, etc.

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Cambridge University Press, pp. A Revised Taxonomic Account of Gymnosporangium. Snover-Clift gymnosporanngium, and G.

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