Biology 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 http://www.apple.com/quicktime/download/. SWD Threat for WA Growers SWD mating on strawberry. SWD ovipositor. SWD ovipositing. SWD life cycle.