Knopper gall Andricus quercuscalicis on acorn

---

Knopper gall Andricus quercuscalicis on acorn

---

Size: 4344px × 3056px
Location: Norfolk England
Photo credit: © Harvey Wood / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: acorn, andricus, attack, attacked, deciduous, disease, diseased, environment, gall, growth, knopper, nature, oak, quercus, quercuscalicis, robur, tree, wasp, wasps