Amyelois transitella

Navel orangeworm

Photo by Jack Kelly Clark, UC Statewide IPM Program

  • Larvae of moth (Lepidoptera) – Amyelois transitella
  • Found in USA and Canada
  • Moths lay eggs on new fruit or in mummies
  • Larvae feed on nut meat, leaving webbing and frass
  • Increases threat of aflatoxins in nuts
  • Orchard hygiene important for control

High priority pest of: Almonds, Pistachios, Walnuts

Scientific name: Amyelois transitella
EPPRD Category: 3
Life Form: Butterflies & moths (LEPIDOPTERA)

Pest Documents

FS: fact sheet

CP: contingency plan

DP: diagnostic protocol