Aceria dispar


    The mite Aceria dispar causes galling of the leaves of Aspen (and possibly White Poplar).  The margins of the young leaves are rolled towards the midrib, usually affecting both sides.  It often affects many leaves, which become distorted and often bunched together. These leaf rolls contain mites.

    Identification difficulty

    Adult Gall

    Recording advice

    Adult: 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.   Gall: Unless identified by a recognised expert, a photo is required. If the photo doesn't show the key ID features then in the comments box describe the size and identifying characters you have observed.


    Areas where Aspen is found.

    When to see it

    Galls can be seen when Aspen is in leaf.

    UK Status

    True status in Britain is difficult to determine due to lack of records.

    VC55 Status

    Status in Leicestershire and Rutland not known.

    be our species champion

    Leicestershire & Rutland Map

    MAP KEY:

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

    UK Map