A knopper gall is a growth caused by the larvae of the gall wasp Andricus quercuscalicis. The life cycle of gall wasps is fascinating, alternating between a two-sex generation and a parthenogenic generation. It is not known how the larvae cause the gall to form.
Very interesting. I was wondering what A Knopper gall was.Lovely capture and also once again simply fantastic!!
I thought it had to do with wasps! I am glad I am not near it in person but it is fantastic to see like this. Great photo, as usual!
This is a strange looking one. Now I know when I see a strange growth on a tree like this, it might be caused by wasps.
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