Circular brown scar around button end of an immature orange caused by the larva of amorbia or western avocado leafroller, Amorbia cuneana (= A. essigana), feeding under the calyx when the fruit was young.

Circular scar around button end of green orange. Credit: Alan A. Urena
Circular brown scar around button end of an immature orange caused by the larva of amorbia or western avocado leafroller, Amorbia cuneana (= A. essigana), feeding under the calyx when the fruit was young. Credit: Alan A. Urena