Aceria campestricola is a Gall Mite that causes Pustule galls to form on the upper leaf surfaces of certain species of Elm. The galls are far easier to see than the mites.
The host species in Britain include English Elm and Small-leaved Elm, and the mite Aceria campestricola can be found anywhere that these species grow.
Common and widespread in most of Britain where the host plants grow.
Common in Leicestershire and Rutland.
Leicestershire & Rutland Map
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