Diseases
Pyrus communis L.
A disease caused by the highly specialized fungus Venturia pirina Aderh. It affects all above-ground organs of the pear tree, including young shoots, where characteristic ulcers develop.
In the reference 489 varieties crop European pear, where this is mentioned in the description.
The causal agent is the ascomycete fungus Venturia pirina Aderh., whose anamorph stage is known as Fusicladium pirinum (Sib.) Fokl. The pathogen is highly specialized and does not infect apple trees. The disease manifests as chlorotic spots with an olive-colored velvety coating on leaves, fruits, and petioles.
Unlike apple scab, the pear scab pathogen often affects young shoots, causing them to crack and form ulcers. On fruits, the infection leads to deformation, skin cracking, and tissue suberization, which significantly reduces the marketability of the crop.
The identification of distinct physiological races for Venturia pirina is not carried out; pathogen variability is considered within the context of geographical populations. The resistance of the European pear is polygenic in nature, and information regarding major genes for monogenic resistance to this pathogen is virtually absent in current literature.
General information about the subject — on the page Scab.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Pyrus communis L. · European pear
Matviienko Mykola Vasylovych, Khodakivska IUliia Borysivna, Hrynyk Ihor Volodymyrovych,
Pyrus communis L. · European pear
Information not available - Contact NL authorities
Pyrus communis L. · European pear
Pyrus communis L. · European pear
Krasulia Tetiana Ivanivna, Tolstolik Liudmyla Mykolaivna, Maksymova Iryna Mykolaivna,
Pyrus communis L. · European pear
Institute of Horticulture of the Ukrainian Academy of Agrarian Sciences
Pyrus communis L. · European pear
Pyrus communis L. · European pear
Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas
Pyrus communis L. · European pear
Khodakivs`ka IUliia Borysivna, Matviienko Mykola Vasylovych,
Pyrus communis L. · European pear
Rudolfs Dumbravs
Pyrus communis L. · European pear
Information not available - Contact NL authorities
Pyrus communis L. · European pear
Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas
Pyrus communis L. · European pear
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Pyrus communis L. · European pear
Opalko Ol`ha Anatoliivna, Opalko Anatolii Ivanovych, Zaplichko Fedora Onysymivna, Desiatov Anatolii Matviiovych, Kondratenko Petro Vasyl`ovych,
Pyrus communis L. · European pear
Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas
Pyrus communis L. · European pear
Lietuvos agrarinių ir miškų mokslų centro filialas Sodininkystės ir daržininkystės institutas
Pyrus communis L. · European pear
Vasil S. Georgiev, Atanas H. Enev, Rozka N. Gabova
Pyrus communis L. · European pear
Kovtun Ivan Mykhailovych
Pyrus communis L. · European pear
Rudolfs Dumbravs
Pyrus communis L. · European pear
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Pyrus communis L. · European pear
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
Pyrus communis L. · European pear
Information not available - Contact NL authorities
Pyrus communis L. · European pear
Khodakivs`ka IUliia Borysivna, Kopan` Kira Mykolaivna, Kopan Volodymyr Pavlovych,
Pyrus communis L. · European pear
Instytut Sadownictwa i Kwiaciarstwa im. Szczepana Pieniążka
Pyrus communis L. · European pear
Spriahailo Oksana Anatoliivna, Kucher Anatolii Oleksiiovych,