'Candidatus Phytoplasma ulmi'(PHYPUL)
Distribution details in Czech Republic
Current pest situation evaluated by EPPO on the basis of information dated
2015: Present, few occurrences
Pest status declared by NPPO: Present, found only in one area; previous records are considered uncertain (2015-08)
Pest status declared by NPPO: Present, found only in one area; previous records are considered uncertain (2015-08)
Although 'elm yellows' observed in North America and Europe present different symptoms and disease severity, the phytoplasmas associated with them are very closely related (if not belonging to the same species).
EPPO Reporting Service (2009/217) : detected during surveys carried out from 1997 to 2007 in South Moravia. Affected elm trees showed witches’ broom, smaller leaves, partial leaf yellowing, and irregular twig growth but the disease was rare.
EPPO Reporting Service (2015/166) : clarifies the situation of 'Ca. P. ulmi' in the Czech Republic. The first confirmed finding was made in June 2015 on Ulmus minor (1 site), all previous records are considered uncertain.
EPPO Reporting Service (2009/217) : detected during surveys carried out from 1997 to 2007 in South Moravia. Affected elm trees showed witches’ broom, smaller leaves, partial leaf yellowing, and irregular twig growth but the disease was rare.
EPPO Reporting Service (2015/166) : clarifies the situation of 'Ca. P. ulmi' in the Czech Republic. The first confirmed finding was made in June 2015 on Ulmus minor (1 site), all previous records are considered uncertain.
* Bojňanský V (1969) Elm witches’-broom, a new disease in Czechoslovakia. In C. Blattný (ed.) Proceedings of the 6th Conference of the Czechoslovak Plant Virologists, Olomouc 1967. Academia, Praha, pp. 211-213.
* EFSA (2014) Scientific Opinion on the pest categorisation of Elm phloem necrosis mycoplasma. EFSA Journal 12(7), 34 pp.
* Klášterský I (1951) A cowl-forming virosis in roses, lime-trees and elm-trees. Studia Botanica Čechoslovaca 12, 73–171.
* Navrátil M, Šafářová D, Válová P, Fránová J, Šimková M (2009) Phytoplasma associated with witches’-broom disease of Ulmus minor Mill. in the Czech Republic: electron microscopy and molecular characterization. Folia Microbiologica 54 (1), 37–42. http://www.springerlink.com/content/y4w321875856t46m/fulltext.pdf
* NPPO of the Czech Republic (2015-08).
* EFSA (2014) Scientific Opinion on the pest categorisation of Elm phloem necrosis mycoplasma. EFSA Journal 12(7), 34 pp.
* Klášterský I (1951) A cowl-forming virosis in roses, lime-trees and elm-trees. Studia Botanica Čechoslovaca 12, 73–171.
* Navrátil M, Šafářová D, Válová P, Fránová J, Šimková M (2009) Phytoplasma associated with witches’-broom disease of Ulmus minor Mill. in the Czech Republic: electron microscopy and molecular characterization. Folia Microbiologica 54 (1), 37–42. http://www.springerlink.com/content/y4w321875856t46m/fulltext.pdf
* NPPO of the Czech Republic (2015-08).
| Country | State | Status | |
|---|---|---|---|
| Austria | Absent, no pest record | ||
| Germany | Present, widespread | ||
| Poland | Transient |