EPPO Global Database

Ralstonia solanacearum species complex(RALSSO)

Distribution details in Kenya

Situation
Current pest situation evaluated by EPPO on the basis of information dated 2018: Present, no details
Comments
EPPO Reporting Service (2004/155) : pelargonium found infected (race 3 biovar 2) in nurseries producing plants for planting for export to EU countries in 1999/2000. No infections found since 2001/2002.

Chamedjeu et al. (2018): the disease affects 77% of potato farms causing yield losses of up to 100%.

Ralstonia solanacearum and R; pseudosolanacearum.
References
* Chamedjeu RR, Masanga J, Matiru V and Runo S (2018) Isolation and characterization of Ralstonia solanacearum strains causing bacterial wilt of potato in Nakuru County of Kenya. African Journal of Biotechnology 17, 1455-1465
------- Reported identification of all four phylotypes amongst 20 isolates (all biovar 3) requires further investigation.

* Janse JD, van den Beld HE, Elphinstone J, Simpkins S, Tjou-Tam-Sin NNA, 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.

* Mwangi JK, Nyende AB, Demo P, Matiru VN (2008) Detection of latent infection by Ralstonia solanacearum in potato (Solanum tuberosum) using stems instead of tubers. African Journal of Biotechnology7, 1644–1649.

* Smith JJ, Offord LC, Holderness M, Saddler GS (1995) Genetic diversity of Burkholderia solanacearum (synonym Pseudomonas solanacearum) race 3 in Kenya. Applied and Environmental Microbiology 61 (12), 4263-4268.
------- R. solanacearum [phylotype IIB-1] (identified as race 3 biovar 2) in 45 of 46 potato isolates from major potato growing areas of Kenya.

* Were HK, Kabira JN, Kinyua ZM, Olubayo FM, Karinga JK, Aura J, Lees AK, Cowan GH, Torrance L (2013) Occurrence and distribution of potato pests and diseases in Kenya. Potato Research 56(4), 325-342.
Situation in neighbouring countries
Country State Status
Ethiopia Present, no details view...
Somalia Present, no details view...
Tanzania Present, no details view...
Uganda Present, no details view...