Spotted wing Drosophila (SWD) is a vinegar or fruit fly of East Asian origin. It has been in Hawaii since the 1980s, but was first discovered in California in 2008. By 2010, it had made its way into Florida, Utah, the Carolinas, and Michigan and into New York by 2011. Today, it has spread throughout most of the continental US. It can directly infest the fruit of many plants, but is most attracted to raspberries, blackberries, blueberries, day-neutral strawberries, elderberries, cherries, and other late-season, soft-flesh fruits — cultivated and wild.