Oak Marble Gall

By: snowgood

Nov 26 2017

Tags: , ,

Category: Nature

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Aperture:f/6.3
Focal Length:35mm
ISO:100
Shutter:1/0 sec
Camera:ILCE-6000

Leaving the heavy horses behind us we veered east towards Guildables Park Farm.

Several oaks along the way spread their branches just above path level.

Amongst these austere twigs we came across numerous marble sized spheres.

These are created by the harmless gall wasp, which injects a chemical into the oak which in turn becomes a “marble”.

The resultant pale spheres gradually darken before the wasp inside bores a way out to continue the insect’s life cycle.

You can see where one such creature erupted above.

No trees or humans were harmed during the making of these marbles.

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