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Gall  Thistle Galls

Thistle Gall - Photo  Copyright 2005 G. Bradley
Photo: G. Bradley

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

Thistle galls are produced by a tiny picture-wing fly called Urophora cardui which lays its eggs in young Creeping thistle stems. Up to six creamy coloured larvae develop inside the stem.

The adult fly can be recognised by the markings on each wing which look like a black letter 'M'.

Track Down More Info

UK Safari Galls Section
UK Safari Plants and Trees Section
UK Safari Creepy-Crawlies Section

  2006 G. Bradley. All Rights Reserved