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dieback Definition

☆ die·back (dī′bak′)

noun

a disease of vascular plants characterized by a dying backward from the tip of twigs and branches and caused by parasites, insufficient moisture, etc.

dieback Usage Examples

Converse of object

  • cause: Drought is also thought to be a factor causing dieback in hedgerow trees, which are not included in the UK crown density survey.
  • show: A whole plant showing dieback was sent to CSL for diagnosis.

Adjective modifier

  • aerial: The symptoms on Pieris were an aerial twig dieback ( Fig.

Modifies a noun

  • symptom: A disease of cassava characterized by prominent dieback symptoms was first described in Zaire in 1989 but the causal agent was not established.

Noun used with modifier

  • ramorum: In North America it also causes ramorum dieback or ramorum leaf blight on a range of woodland plants.
  • twig: The symptoms on Pieris were an aerial twig dieback ( Fig.
  • forest: This forest dieback or degradation could potentially contribute 10 to 100 Gt C to the atmosphere in the coming century.
  • crown: The other problem affecting alders is crown dieback, which results in the tree dying from the top downwards.
  • branch: On other native plants in California the symptoms are quite variable but are usually associated with leaf spotting and branch dieback.