Oak apple gall on an English Oak tree, Quercus, in Northamptonshire, England, UK

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Oak apple gall wasp (Biorhiza pallida) causes flattened rounded galls up to 40mm in diameter to develop on the twigs in spring. The galls have a spongy texture and are brownish white, tinged with pink. Males and females emerge in mid summer and eggs are laid on oak roots. The next generation produces marble-like galls on the roots, from which females emerge in late winter to lay eggs in buds on the twigs. ''

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Size: 5444px × 3629px
Location: Northamptonshire, England, UK
Photo credit: © Matthew Barnes/Plants / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: apple, colour, cynips, england, gall, gall-wasp, galls, insect, larva, leaf, leaves, northamptonshire, oak, uk