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SWD Fruit Pictures

Potential impacts of spotted wing drosophila on berries and other fruit

SWD male no-choice experiment
Apple cider vinegar traps attracting flies but with no damage to wine grapes. Photo: Walton Laboratory, Oregon State University
SWD Identification - Key Characters. Male: black spot on wings, two black combs on front legs. Female: inserts saw-like device (ovipositor) into fruits and lays eggs.
Infested Blueberry
Uninfested blueberry
Larvae inside fruit flesh
Sharp ovipositor is used by female SWD to cut into ripe fruit and lay eggs under the skin
SWD yeast monitoring trap. Photo: Danny Dalton, Oregon State University
egg on blueberry surface. Photo: Danny Dalton, Oregon State University

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  • SWD Fruit Pictures