Resource Database

The Spotted Wing Drosophila (SWD), Drosophila suzukii, is a small vinegar fly that damages many fruit crops. Unlike most other vinegar flies that require damaged fruit to attack, SWD causes damage when the female flies cut a slit and lay eggs in healthy fruit. This insect is a pest of blueberry, blackberry, raspberry, strawberry, cherries, grapes and other tree fruits, with a preference for softer-fleshed fruit. Given its potential to infest fruit, it is important to learn about monitoring and management of SWD to minimize the risk of larvae developing in fruit and affecting fruit marketability.