On Turkey Oak | Hainault Forest

Anemone Gall

Pseudoneuroterus saliens

TQ4792 01/05/2025 ©Raymond Small

Anemone Galls form on fertilised Turkey oak female flowers. They are induced by the sexual generation of a gall wasp. Several larvae live in each gall and emerge as adults during summer. The first record of this gall in the UK was during 2004.

TQ4792 28/04/2024 ©Raymond Small

Cluster Gall

Andricus lucidus

Cluster Galls first appeared in the UK during the 1990s, originating from the Mediterranean. These galls are caused by the sexual generation of a gall-wasp. The flower-like clusters, measuring up to 35mm across, are comprised of dish-shaped galls that push into each other. The galls are initially green with a shiny, waxy surface, becoming reddish-brown and hard. The asexual generation of this gall-wasp produce Hedgehog Galls.

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