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Western Cherry Fruit Fly

Image credit: Whitney Cranshaw, Colorado State University, Bugwood.org 

Western Cherry Fruit fly (Rhagoletis indifferens)

Identification
  • Adults are smaller than a house fly with unique black markings on the wings.
Reasons for Control
  • Flies feed and breed exclusively on cherries.
  • Infested cherries are useless for market because once eggs are laid, no control of larvae is possible.
  • No variety of cherry is resistant.
Control Notes
  • Since the 90s the WCFF has been a problem for cherry producers. Regular treatments are required to produce uninfested fruit.
  • Sticky traps are used to time spray treatments.