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Photo: G. Bradley |
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UK
Safari Tip:
To help you identify the most frequently found galls there's a
fully illustrated fold out chart in the Nature Shop - click
here
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Marble galls are sometimes called oak
nuts. They are the product of the gall wasp Andricus kollari.
Originally these wasps were introduced from the Middle East in the 1800's. The galls contain large amounts of tannic acid, which was used for making ink.
The wasp leaves the gall in Autumn, and you can see the small round hole where it made its exit.
UK Safari Galls Section
UK Safari Plants and Trees Section
UK Safari Creepy-Crawlies Section
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