Golovinomyces cichoracearum

    Alternative names
    Erysiphe cichoracearum

    Golovinomyces cichoracearum is a fungal plant pathogen that causes a powdery mildew on various plants including Prickly Sow-thistle, Nipplewort,  melon, cucumber, pumpkin, and squash. The primary symptoms are white, powder-like spots on the leaves and stems.

    Similar Species

    Sphaerotheca fuliginea causes a similar looking powdery mildew of cucurbits

    Identification difficulty
    Recording advice

    Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters.


    Wherever the host plants occur.

    When to see it

    Summer and early autumn.

    UK Status

    It seems to be widespread in Britain.

    VC55 Status

    Status in Leicestershire and Rutland not known.

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    Leicestershire & Rutland Map

    MAP KEY:

    Yellow squares = NBN records (all known data)
    Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

    UK Map