Definition of coral spot in US English:

coral spot

(also coral spot disease)

noun

  • A common fungal disease of trees and shrubs, appearing as numerous minute pink or dark red raised spots on the twigs and branches and causing dieback.

    Nectria cinnabarina, family Hypocreaceae, phylum Ascomycota

    • ‘Plants are susceptible to coral spot fungus, especially if the wood is not properly ripened due to insufficient summer heat.’
    • ‘A pile of logs at the crossroads of tracks at Wilderness Plantation is peppered with the fruiting bodies of coral spot fungus.’
    • ‘This is coral spot, a fungus which mainly attacks dead parts of woody plants, but may spread to live wood if not pruned out.’
    • ‘The cause is coral spot disease which affects many species of woody plants, although it is rare on conifers.’
    • ‘Seed collection from this tree is a struggle as the fungal disease black coral spot destroys many of the seeds.’
    • ‘It succeeds in ordinary garden soil but is susceptible to Coral Spot fungus.’
    • ‘However, Nectria cinnabarina, coral spot canker, is the cause of a similar canker fungi found on honey locust, apple trees in orchards, and black locust trees.’
    • ‘Check trees and shrubs for pink or reddish-orange spots on the bark – a sign of coral spot.’