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Monitoring and control of Ralstonia solanacearum, the quarantine bacterium which causes brown rot disease. - LK0909

Description
Potato brown rot, caused by bacterium Ralstonia solanacearum, can seriously damage potato production. This pathogen has quarantine status in Europe to restrict its spread. Isolated outbreaks in ware potato have recently been detected for the first time in the UK- two in the Thames valley (92 and 95), two in Northamptonshire in 1999 and one in Kent in 2000. The same organism has also caused bacterial wilt disease in tomato in Bedfordshire (97 an 98). Similar sporadic outbreaks have also been recorded in most other EC countries since 1989 and have resulted in official controls on infected crops and restriction of further planting in affected areas. The bacterium appears to have entered the EC in infected ware potatoes imported from the third countries. It has entered certain watercourses, possibly in industrial or municiple effluents containing potato washings, and become established in the weed host, woody nightshade, whih commonly inhabits river water.

The overall aim of this project was to provide the potato and water industries with the means for effective monitering and control of the brown rot bacterium to prevent its further establishment in UK river systems whilst protecting the reputation and sustainability of the potato industry in the UK.

Objectives: To improve and optomise detection methods for standardised routine monitering of R. solanacearum in liquid and solid waste from industrial potato processing and pre-packing operations, domestic sewage effluents and sludges and river water.

To identify critical specifications for existing and novel treatment processes which guarantee effective eradication of R. solanacearum from irrigation water sources, industrial potato waste and domestic sewage.

To assess risks of dissemination of R. soanacearum in the environment and transmission to potato crops via idustrial potato waste or domestic sewage.

To compile a series of industry guidelines to assist in risk assessment and ensure use of validated treatment ethods for pathogen control whenever necessary.
Objective
SAPPIO LINK: The overall aim of the project is to provide the potato and water industries with the means for effective monitoring and control of the brown rot bacterium to prevent its further establishment in UK river systems whilst protecting the reputation and sustainability of the potato industry in the UK.
Project Documents
• Abstract : LK0909 Monitoring and control of Ralstonia solanacearum, the quarantine bacterium which causes potato brown rot disease Abstract   (10k)
Time-Scale and Cost
From: 1999

To: 2002

Cost: £171,781
Contractor / Funded Organisations
Central Science Laboratory
Keywords
Biotechnology              
LINK Programme              
Plant health              
Plant Pests and Diseases              
Plants and Animals              
Potatoes              
Sustainable Farming and Food              
Fields of Study
Plant Health