Spotted wing drosophila (SWD) is a vinegar or fruit fly of East Asian origin. Introduced into Hawaii in the 1980s, first discovered in California in 2008, by 2011 it had found its way into New York State (NY). Today, its distribution spans the continental US. SWD infests raspberries, blueberries, blackberries, strawberries, grapes, cherries, peaches, plums, and other late-season, soft fruits, both wild and cultivated.