Skip to main content Skip to navigation


Collage image. Spotted Wing Drosophila (side view, left; top view, right) Sampling trap in raspberry field (center).
Features of SWD (Drosophila suzukii) ovipositor (left) vs non-suzukii ovpositor (right).
Spotted Wing Drosophila (Drosophila suzukii) has an ovipositor that enables it to pierce the skin of healthy fruit still attached to the plant. Drosophila suzukii ovipositor (left): Spines black – color intensity increases sclerotization or hardness. Largest spin located at the tip of ovipositor; punctures the skin of the fruit, allowing insertion of the ovipositor. Non-suzukii ovipositor: Blunt tip of ovipositor. Spines not blackened – less hardened or sclerotized. Cannot pierce skin of healthy fruit.

Reproductive Readiness of Spotted Wing Drosophila

Spotted Wing Drosophila and Brown Marmorated Stinkbug Update

Spotted Wing Drosophila – WSU Orchard Pest Management Online, Wenatchee

SWD Biology, Courtship and Oviposition (slide show)

SWD Behavior. Free software for viewing the movie can be downloaded from

SWD Threat for WA Growers

Two SWD mating on a strawberry.
SWD mating on strawberry.
Micrograph of a SWD ovipositor.
SWD ovipositor.
Close-up of a SWD ovipositing in fruit.
SWD ovipositing.
The life cycle of Spotted Wing Drosophila (SWD).
SWD life cycle.