he lifespan of D. suzukii varies greatly between generations; from a few weeks to ten months.[1] Generations hatched early in the year have shorter lifespans than generations hatched after September.[1] Research shows that many of the males and most of the females of the late-hatching generations overwinter in captivity—some living as long as 300 days. Only adults overwinter successfully in the research conducted thus far. In Washington state, D. suzukii has been observed in association with two exotic and well-established species of blackberry, Rubus armeniacus (= Rubus discolor) and Rubus laciniatus (the Himalayan and Evergreen Blackberries, respectively.).[2] The fly has been observed reproducing on many other species of soft-skinned wild fruit, however, research is still ongoing to determine the quality of individual species as reproductive hosts.