Eriophyid Mite Gall (Aceria ilicis)

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stevemcbill
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Eriophyid Mite Gall (Aceria ilicis)

On Friday (10/11/2017) I found the dark brown erinea of the Eriophyid mite (Aceria ilicis) in profusion on the underside of leaves of an Evergreen Oak (Quercus ilex) in Calderstones Park, Liverpool, Merseyside. Only one tree had the infestation and none of the other Evergreen Oaks checked showed any signs whatsoever.

Mites were visible in their thousands on each leaf under the stereo microscope (approx 45x).

It would appear that NOW is the time to check Evergreen Oaks (Quercus ilex) in Merseyside to see if the mite is present across the area. Currently the NBN Atlas map only shows records for Norfolk, Suffolk, Cambridgeshire and the Isle of Wight.

Good hunting everyone.
Steve

Image: 
Aceria ilicis erinea on underside of Quercus ilex leaf
BDeed
Just to confirm that we hold

Just to confirm that we hold no records of Aceria ilicis. Yours is a first!

stevemcbill
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Many thanks for the info Ben

Many thanks for the info Ben - much appreciated !!!

Steve

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