Rhagoletis mendax

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Rhagoletis mendax adult on blueberry (click on image to enlarge it)
Author(s): Jerry A. Payne, USDA Agricultural Research Service
Source: IPM Images

Rhagoletis mendax Curran - (blueberry maggot)

Rhagoletis mendax larvae on blueberry (click on image to enlarge it)
Author(s): Jerry A. Payne, USDA Agricultural Research Service
Source: IPM Images

The fly is an important native pest of blueberry in eastern North America. It also attacks other species of Ericaceae. Losses can be high because infested crops cannot be exported.

The eggs and larvae develop inside blueberries over a period of about 1 months. The mature larva drops to the ground, pupates in the soil and typically overwinters there. There is usually one generation per year, but some populations spend 2-3 winters as pupae.

Vernacular names
• Deutsch: Blaubeer-Fruchtfliege
• English: blueberry maggot
• Français: mouche du bleuet
mouche de l'airelle


The adults is 4-5 mm long, black with a white scutellum and four white cross-bands on the abdomen.

For a review see Rodriguez-Saona et al., 2015.