EPPO Global Database

Ralstonia solanacearum race 3 (no longer in use)(PSDMS3)

Distribution details in United Kingdom

Situation
Current pest situation evaluated by EPPO on the basis of information dated 2013: Transient, under eradication
Pest status declared by NPPO: Transient, actionable, under eradication (2010-02)
From CABI Disease map 785 (1999): Present, few occurrences
Comments
EPPO Reporting Service (93/031): one outbreak at a farm in Oxfordshire, southern England. Strict containment measures and eradication.

EPPO Reporting Service (96/002): disease not further detected in potato after 1993, in extensive surveys. Since found in wild Solanum dulcamara in Thames valley only, possibly contaminating the water.

EPPO Reporting Service (97/025): in fact, a single sample of ware potatoes found infected in 1995, in area where the previous outbreak was found. Probably infected from S. dulcamara.

EPPO Reporting Service (97/111): no infection found in potato since 1995, but R. solanacearum may still be present in wild S. dulcamara adjoining waterways.

EPPO Reporting Service (97/167): found in tomatoes in two glasshouses in Bedfordshire, probably contaminated through irrigation water.

EPPO Reporting Service (2003/166) : further outbreaks in potato crops in England (2 in Northamptonshire in 1999; 1 in Kent in 2000). Not since found in crops. Can still be detected in some water courses in the south and southeast of England.

EPPO Reporting Service (2004/089) : in 2004, a consignment of Dutch seed potatoes found infested, before planting, in Lancashire (northwest England). Tests on related batches were negative, but farms concerned are kept under surveillance. No infection found in the field

EPPO Reporting Service (2004/155) : recalls that R. solanacearum was first reported on pelargonium (on imported cuttings) in UK in 1999. No further reports.

Official surveys conducted in 2008 did not detect the bacterium in tomato/potato crops. However, 12 water samples from different watercourses were found infected.

EPPO Reporting Service (2010/100) : detected in 2009 on ware potatoes in 1 production site in Cornwall, under eradication.

EPPO Reporting Service (2011/150) : official surveys conducted in 3 watercourses in Cambridgeshire where R. solanacearum had previously been found (Back river, Stanground Lode and Pig Water) showed that the bacterium is no longer present. This is the result of an eradication programme (removal of Solanum dulcamara plants).

From NPPO (2012): the bacterium has NOT been detected in the water course 'Fossdyke Navigation' since 2008. It was NOT detected during official surveys carried out on the UK ware and seed potato crops of 2011.

From NPPO (2013): deteted in potato stocks (cv. 'Luciole') which had been grown from seed potatoes imported from the Netherlands. All contamined stocks have been traced and destroyed.
References
* IPPC website, FAO. Official Pest Reports from the United Kingdom (2010-02-09) Potato brown rot outbreak. https://www.ippc.int/index.php?id=122[showUid]=216919

* Janse, J. D. (1996) Bulletin OEPP/EPPO Bulletin 26 (3-4), 679-695.
------- Biovar 2.

* Janse, J.D.; van den Beld, H.E.; Elphinstone, J.; Simpkins, S.; Tjou-Tam-Sin, N.N.A.; van Vaerenbergh, J. (2004) Introduction to Europe of Ralstonia solanacearum biovar 2 race 3 in Pelargonium zonale cuttings. Journal of Plant Pathology, 86(2), 147-145.

* NPPO of the UK (1993-01, 1995, 1996-11, 1997-09, 2004-03, 2009-07, 2011-06, 2012-03, 2012-07, 2013-01, 2013-06).