EPPO Global Database

'Candidatus Phytoplasma americanum'(PHYPAE)

Distribution details in Canada

Situation
Current pest situation evaluated by EPPO on the basis of information dated 2026: Absent, unreliable record
From NPPO: Present, restricted distribution
Comments
'Candidatus Phytoplasma americanum' was described in 2006 and corresponds to the 16Sr group 16Sr XVIII-A (Lee et al., 2006; Bertaccini et al., 2019 and 2022; Wei et al., 2022). The older references further down pre-date the description and may relate to other phytoplasma. No record mentioning presence of 'Ca. Phytoplasma americanum' in this country was found (at 2026-01).

References cited in this comment:
* Lee IM, Bottner KD, Secor G, Rivera-Varas V (2006). ‘Candidatus Phytoplasma americanum’, a phytoplasma associated with a potato purple top wilt disease complex. International Journal of Systematic and Evolutionary Microbiology, 56(7), 1593-1597. https://doi.org/10.1099/ijs.0.64251-0
* Bertaccini A (2019) The phytoplasma classification between ‘Candidatus species’ provisional status and ribosomal grouping system (2019) Phytopathogenic Mollicutes 9(1), 1-2.
* Bertaccini A, Arocha-Rosete Y, Contaldo N, Duduk B, Fiore N, Montano HG, Kube M, Kuo C-H, Martini M, Oshima K, Quaglino F, Schneider B, Wei W, Zamorano A (2022). Revision of the ‘Candidatus Phytoplasma ’species description guidelines. International Journal of Systematic and Evolutionary Microbiology, 72(4), 005353. https://doi.org/10.1099/ijsem.0.005353
* Wei W, Zhao Y (2022) Phytoplasma Taxonomy: Nomenclature, Classification, and Identification. Biology 2022(11), 1119. 23pp. https://doi.org/10.3390/biology11081119
References
* Chiykowski, L. N.; Wolynetz, M. S. (1981) Canadian Journal of Plant Pathology 3 (1), 53-57.

* Conners, J.L. (1967) An annotated Index of Plant diseases in Canada. Canada Department of Agricultural Research Branch Publication 381.

* Hodgson, W.A.; Pond, D.D.; Munro, J. (1974) Diseases and pests of potatoes. Agriculture Canada Publication N°1492.
Situation in neighbouring countries
Country State Status
United States of America Texas Present, no details view...
United States of America Nebraska Present, no details view...
United States of America Present, restricted distribution view...
United States of America Minnesota Absent, unreliable record view...
United States of America Illinois Absent, unreliable record view...
United States of America Ohio Absent, unreliable record view...
United States of America Washington Absent, unreliable record view...
United States of America Wisconsin Absent, unreliable record view...
United States of America Montana Absent, unreliable record view...
United States of America Pennsylvania Absent, unreliable record view...