ring rot


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ring rot

[′riŋ ‚rät]
(plant pathology)
A fungus disease of the sweet potato root caused by Rhizopus stolonifer and marked by rings of dry rot.
A bacterial disease of potatoes caused by Corynebacterium sepedonicum and characterized by brown discoloration of the annular vascular tissue.
References in periodicals archive ?
Then a Defra official called to say ring rot had been discovered in a routine sample.
Wales Agriculture, Environment and Planning Minister Carwyn Jones said the infected seed potatoes were detected during the annual survey for ring rot, carried out by the Plant Health and Seeds Inspectorate.
It may also be relevant in addition to ring rot, analyze some or all of the samples of brown rot and Dickey solani.
Mr Morgan, one of the leading suppliers of seed potatoes in Britain, saw his business quarantined in 2003 when ring rot was discovered.
These measures follow a number of ring rot outbreaks in the Netherlands and are similar to arrangements already in place for imports of German and Polish potatoes.
The Department for Environment, Food and Rural Affairs said ring rot had been found in Sante potatoes which originated from a grower in Herefordshire.
The measures take effect on March 7 and are similar to arrangements already in place for imports of German and Polish potatoes, following outbreaks of ring rot in the Netherlands, source of most seed potatoes brought in from other parts of the EU.
The warning comes following recent outbreaks of rhizomania in sugar beet crops in Herefordshire and Shropshire, and potato ring rot in the Welsh borders.
John Morgan's Middlewood Farm,in the Brecon Beacons, was at the centre of Britain's potato ring rot outbreak last month.