Bacterial Wilt
Ralstonia solanacearum
Brown Rot


Description and management of:
  - R. solanacearum race 3 biovar 2
  - Brown rot of potato
  - Southern wilt of geranium
  - Bacterial wilt of tomato
Find here a selection of:
  - Information & management guides
  - Diagnostic & sampling protocols
  - Meeting abstracts
  - Book references
  - Journal articles
Web resources
R. solanacearum / Bacterial Wilt - Web Resources
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Find here links to a selection of webpages related to Ralstonia solanacearum and bacterial wilt diseases
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  APSnet Feature story (January 2009) - Ralstonia solanacearum race 3 biovar 2: Tropical losses, temperate anxieties

Description: Contains update on Ralstonia solanacearum Race 3 Biovar 2 with information and color photographs of symptoms of various species; diagnostic signs; culture, detection and identification; disease cycle and epidemiology; management; and references.

Source: APSnet - Feature stories
  Distribution maps of plant diseases - Search page for "Ralstonia"

Description: Web page contains links to distribution maps for R. solanacearum race 1, race 2 and race 3, based on bibliographic data from the CAB abstracts database and plant quarantine information compiled by EPPO. Updated April 1999. Access to the maps may require subscription to CABI Publishing.

Source: CAB International Publishing website - In association with the European and Mediterranean Plant Protection Organization
  Plant disease management reports - "Search page"

Description: Web page contains searchable reports on the effectiveness of fungicides/nematicides, resistant varieties, and biological controls that defend against diseases of agricultural and horticultural crops.

Source: APSnet - Plant Management Network International website
  Plant health - Ralstonia

Description: Web page contains background information on pathogen; image gallery for disease on geraniums, tomato, potato and wild solanaceous hosts; and links to National Pest Alert Fact Sheet, Pest Data Sheet, 2004 Action Plan, and Management Plans for Off-shore Production Facilities.

Source: USDA - Animal and Plant Health Inspection Service website
  Newsroom - Bacterial wilt - Detection of pathogen in US (2003)

Description: PPQ notice regarding detection of pathogen in U.S. in 2003.

Source: USDA - Animal and Plant Health Inspection Service Newsroom website
  Potato - Bacterial wilt

Description: CIP site provides overview of disease on potato, symptoms and control (English and Spanish), list of publications and research projects, training materials and source for pathogen detection kits.

Source: CIP (International Potato Center) website
  Plant pests - Bacterial wilt of geranium

Description: Two-page fact sheet with background on pathogen, hosts, distribution, biology and symptoms (with images included and compared to Xanthomonas bacterial blight).

Source: Canadian Food Inspection Agency website
  Action Plan for Ralstonia solanacearum, Race 3 (Biovar 2)

Description: CFIA Action Plan describing the protocol to be used by the CFIA for greenhouses containing plant material potentially infected with Ralstonia solanacearum, Race 3 (Biovar 2).

Source: Canadian Food Inspection Agency website
  Microbes - Plant pathogens - Southern bacterial wilt

Description: NISIC profile on the pathogen/disease provides links to information about the pathogen and the diseases it causes.

Source: USDA-National Agriculture Library - National Invasive Species Information Center website
  Ralstonia (Pseudomonas) solanacearum race 3 biovar 2

Description: Pest Alert with brief description of pathogen, distribution, importance and regulatory concerns.

Source: North American Plant Protection Organization's - Phytosanitery Alert System website
  Pest sheet - Bacterial wilt

Description: Brief description of symptoms on geranium and potato, with reference to similar diseases.

Source: University of Massachussets - Introduced Pests Outreach Project website
  Ralstonia solanacearum, race 3 biovar 2 found in U.S. greenhouse

Description: Brief description of 2003/2004 introduction of pathogen into U.S. and pest response guidelines. [note there is February 2003 note at].

Source: Purdue Plant & Diagnostic Laboratory website
  Comparison of bacterial blight and Southern wilt symptoms on geranium

Description: One page web site in support of “Ohio floriculture online” that compares Xanthomonas and R. solanacearum race 3 biovar 2 on geraniums. Links with fair to excellent pics of both diseases on geraniums. Covers basic symptoms, biology, and management.

Source: Ohio Floriculture online website
  EPPO Bulletin Plant Health - Pest and diseases - Potato brown rot

Description: Web page on brown rot of potato that links to information sheet on brown rot disease. Links to UK directive and monitoring program protecting potatoes from this disease that “does not occur in UK”. Fact sheet on brown rot has good pictures and covers basic biology. Does not cover biovars and races.

Source: Department for Environment Food and Rural Affairs (UK) website
  Pest management - Ralstonia solanacearum race 3. Geranium Southern bacterial wilt / Potato brown rot

Description: Discusses the detection of Ralstonia solanacearum Race 3 Biovar 2 in geraniums in Canada, describes the different races, and provides links to Canadian action plan and fact sheet.

Source: Government of British Columbia - Ministry of Agriculture and Lands website
  Invasive species: Ralstonia solanacearum - Image gallery

Low resolution images are available to non-registered users, while registration makes high resolution images available.

Source: is a joint project of The Bugwood Network, USDA Forest Service and USDA APHIS PPQ