The spotted wing drosophila (SWD), Drosophila suzukii, is a vinegar or fruit fly native to Southeast Asia. It’s been in Hawaii since the 1980s and was first detected in North America in 2008, in California. In 2010, it was discovered in Florida, the Carolinas, Michigan, and Utah; eventually turning up in NY’s Hudson River Valley in 2011.
Its range now includes the entire continental United States, with the exception of Arizona, Nevada, New Mexico, and South Dakota, as well as several Provinces across Canada (British Columbia, Ontario, Quebec, New Brunswick, Nova Scotia, and Prince Edward Island). Its many hosts include raspberries, blueberries, strawberries, grapes, cherries, peaches, plums, and other late-season, soft-flesh fruits.