SK5635 : Oak Knopper Gall

taken 3 years ago, near to Clifton, Nottingham, Great Britain

Oak Knopper Gall
Oak Knopper Gall
I hadn't come across this particular gall previously. This particular tree was seriously infested, but apparently infestation is not considered to be a threat to oak in general as the life cycle of the wasp concerned relies on the presence of the Turkey Oak as well, and this is largely confined to parkland planting. I thought to begin with that the black bits were some sort of insect, but the photograph shows that they are not. They appear to be the rough bits off the acorn cup adhering to the sticky surface of the gall.
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SK5635, 164 images   (more nearby )
Photographer
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Date Taken
Monday, 8 September, 2014   (more nearby)
Submitted
Friday, 12 September, 2014
Geographical Context
Wild Animals, Plants and Mushrooms 
Tree (from Tags)
Oak 
Primary Subject of Photo
Tree 
Subject Location
OSGB36: geotagged! SK 5609 3508 [10m precision]
WGS84: 52:54.6138N 1:10.0442W
Camera Location
OSGB36: geotagged! SK 5609 3508
View Direction
East-southeast (about 112 degrees)
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Other Tags
Knopper Gall  Wasp Gall 

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