Ralstonia solanacearum
bacterial wilt
Too many to list, see CABI CPC for a complete list
Worldwide
Widespread
2022-08-30
bacterium
China
Most important economic crop is potato. Host range is extremely wide.
RLSTSO
12 Known Hosts
Beta vulgaris
table beet, swiss chard
No
RLSTSO-1
Table beet and swiss chard are not considered important hosts of the pathogen. Seed is not known to be a pathway.
Ralstonia solanacearum In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Capsicum annuum
pepper
No
RLSTSO-1,RLSTSO-2,RLSTSO-6
Pathway not proven. Pepper is not considered to be an important host of the pathogen. Only artificially inoculated seeds in research were shown to induce disease symptoms. There is no evidence that seed is a pathway in nature.
Ralstonia solanacearum In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Moffett ML, Wood BA, Hayward AC, 1981. Seed and soil: sources of inoculum for the colonisation of the foliage of solanaceous hosts by Pseudomonas solanacearum. Annals of Applied Biology, 98:403-411
Solanum lycopersicum
tomato
No
RLSTSO-3,RLSTSO-4,RLSTSO-2
Pathway not proven. Though references have speculated seed as a potential pathway for this pathogen, fruit used for these experiments did not come from seed production crops. Seed transmission from artificially inoculated plants, fruit or seed has also been demonstrated, but there is no evidence that seed is a pathway under natural seed production systems.
Chatterjee, B., Chakraborty, M., Habib, A.A. and Samaddar, K.R., 1994. Survival of Pseudomonas solanacearum biovar 3 on seeds of eggplant. Bacterial Wilt Newsletter, (11).
Singh R, 1994. Seed transmission studies with Pseudomonas solanacearum in tomato and eggplant. ACIAR Bacterial Wilt Newsletter, 11:12-13.
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Citrullus lanatus
watermelon
No
RLSTSO-1,RLSTSO-2
Watermelon is not considered an important host of the pathogen. Seed is not known to be a pathway.
Cucumis melo
melon
No
RLSTSO-1
Melon is not considered an important host of the pathogen. Seed is not known to be a pathway.
Ralstonia solanacearum In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Cucumis sativus
cucumber
No
RLSTSO-1
Cucumber is not considered an important host of the pathogen. Seed is not known to be a pathway.
Ralstonia solanacearum In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Cucurbita spp.
squash, pumpkin, gourd
No
RLSTSO-1
Squash, pumpkin and gourd are not considered an important hosts of the pathogen. Seed is not known to be a pathway.
Ralstonia solanacearum In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Gossypium spp.
cotton
No
RLSTSO-1
Cotton is not considered an important host of the pathogen. Seed is not known to be a pathway.
Ralstonia solanacearum In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Solanum melongena
eggplant
Yes
RLSTSO-3,RLSTSO-4,RLSTSO-2
Recent research has shown that seed can be a pathway in eggplant. Though evidence of a seed pathway in seed produced in known seed production systems has not been found.
Biochemical, blotter, serological and molecular methods
These methods have been described for other hosts and specific tests for eggplant have not been developed. These methods have not be standardized or validated for eggplant.
RLSTSO-2
Seed disinfection has been described for other hosts.
RLSTSO-2
Chatterjee, B., Chakraborty, M., Habib, A.A. and Samaddar, K.R., 1994. Survival of Pseudomonas solanacearum biovar 3 on seeds of eggplant. Bacterial Wilt Newsletter, (11).
Singh R, 1994. Seed transmission studies with Pseudomonas solanacearum in tomato and eggplant. ACIAR Bacterial Wilt Newsletter, 11:12-13.
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Impatiens spp.
impatiens
No
RLSTSO-8
No references found indicating seed is a pathway.
Hudelson, B. 2020. Ralstonia Wilt. https://hort.extension.wisc.edu/articles/ralstonia-wilt/
Pelargonium spp.
geranium
No
RLSTSO-8
No references found indicating seed is a pathway.
Hudelson, B. 2020. Ralstonia Wilt. https://hort.extension.wisc.edu/articles/ralstonia-wilt/
Glycine max
soybean
No
RLSTSO-1,RLSTSO-9,RLSTSO-10
Pathway not proven. Though references indicating that seed may be a pathway were found, these references only indicated that the pathogen was found on the seed in the laboratory. No evidence of seed transmission of this pathogen on this crop in nature was found.
Yes
Blotter
Blotter incubation was used in this research. This method has not been standardized or validated.
RLSTSO-9
Ralstonia solanacearum In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Muras, VA. 1963. On Bacterial Wilt of Soyabeans in Ukraine. Microbiology Journal 25:42-49 (https://apps.dtic.mil/sti/pdfs/AD0642025.pdf)
Nikitina KV and Korsakov NI, 1978. Bacterial diseases of soybean in the Soviet Far East and in southern regions of the USSR: search for sources of resistance to them. Trudy po Prikladnoi Botanike, Genetike i Selektsii, 62:13-18
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