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Cornell Fruit Resources

Resources for Commercial Growers


Spotted Wing Drosophila

Genus species: Drosophila suzukii

SWD appear similar to other vinegar flies. Adult flies are 2-3 mm in length, with red eyes, tan-colored body with darker bands on abdomen. Males have characteristic single spots at the leading edge of the tip of the wing and two dark spots on their front legs. Females lack wing spots and leg spots, but are distinguished by a robust, saw-toothed ovipositor (visible under magnification). Larvae are white, nondescript and legless.

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