canker stain

canker stain

[′kaŋ·kər ‚stān]
(plant pathology)
A fungus disease of plane trees caused by Endoconidiophora fimbriata platani and characterized by bluish-black or reddish-brown discolorations beneath blackened cankers on the trunk and sometimes the branches.
References in periodicals archive ?
However, new trees are of the Vallis Clausa variety that is resistant to a deadly and virulent disease: canker stain. Ceratocystis platani is an air-borne wound fungus that thrives in humid conditions.
But by the same token, canker stain of London plane (Ceratocystis fimbriata), with its liking for warm conditions, has recently moved north from Marseilles to Bordeaux and looks to be heading towards the UK.