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blueberry maggot fly (Rhagoletis mendax)

Closeup of a blueberry maggot fly on a blueberry. The fly is black with red eyes and translucent wings that have several black stripes.

Life cycle traits give the invasive spotted-wing drosophila (Drosophila suzukii) a competitive edge over the native blueberry maggot fly (Rhagoletis mendax), pictured here—and also make it harder for growers to manage. That advantage will only grow as temperatures rise, a new study shows. (Photo by Jerry A. Payne, USDA Agricultural Research Service,

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