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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Gymnosporangium sabinae

Gymnosporangium sabinae is on the increase in Britain. Wang YC; Guo L, Gymnosporangium sabinae also Gymnosporangium fuscum and other names pear rustEuropean pear rustor pear trellis rust is a fungal heteroecious plant pathogen with Juniperus Juniper gymnosporagium and shrubs as the primary telial host and only Pyrus pear trees as secondary aecial hosts.

Zbornik Radova, Kupari, No.

This page was last edited on 5 Juneat Van der Auwera et al. The following page uses this file: We have had a dwarf patio Pear Tree Pyrus communis in our garden for several years. Dinc N; Karaca I, Studies on the development of pear trellis rust.


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Google cookies and technologies Google Analytics: The geographic locations of affected trees described herein suggest that the trellis rust fungus sabihae well-established across New York, and has spread undetected since its introduction.

Journal of Turkish Phytopathology, 4 2: Datasheet Gymnosporangium fuscum European pear rust. Snover-Cliftand G.

From Wikimedia Commons, the free media repository. Facultative or heterotypic synonyms: A Aecia on undersurface; B Spermogonia on upper surface.

Any condition s All condition s. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. The disease can be particularly damaging on pear, resulting in complete defoliation and crop loss if not treated.

Matches exactly Value is undefined. Over the past 2 years, we collected a leaf rust on P. Views Read Edit View history. The following other wikis use this file: Rust [caused by Gymnosporangium fuscum] of pears and juniper [Juniperus]: Generally, the fungus must cross over to the opposite tree host. Pear Rust, early October leaf lowerside. Overwintering of pear trellis rust in pear. References Top of page Akesson I, By using this site, you agree to the Terms of Use and Privacy Policy.


The most direct method of control is to exterminate Junipers near pear trees. Bernard Jabas 1 and Dr. European Handbook of Plant Diseases.

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Acta Mycologica Sinica, 4 1: Note scars caused by telial horns Copyright M. The spores then reinfect Pear gymnosporahgium.