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ring rot

American  

noun

Plant Pathology.
  1. a disease of potatoes, characterized by wilted foliage and rotting of the ring of vascular bundles in the tubers, caused by a bacterium, Corynebacterium sepedonicum.


ring rot British  

noun

  1. Also called: potato ring rot.  a virulent bacterial disease of potatoes occurring in the vascular ring of the potato tuber

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of ring rot

An Americanism dating back to 1900–05

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The law was introduced in response to ring rot outbreaks in Poland.

From BBC

In 2012, the Food and Environment Research Agency reinforced the guideline, by demanding a ring rot test certificate accompany the spuds.

From BBC