Pocket Plum - Taphrina pruni
Taphrina pruni is a fungal plant pathogen that gives rise to the Pocket or Bladder Plum gall, which is a chemically induced distortion that causes fruit to swell on one side, or become otherwise deformed and flattened forming a rather bean like pod. Affected fruits have no stone.
On Blackthorn and domestic Plum.
May to July.
Widespread and frequent in Britain.
Frequent in Leicestershire and Rutland, though its abundance may vary from year to year.
Leicestershire & Rutland Map
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Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015