date:Oct 19, 2017
An invasive fruit fly is threatening berry crops in Minnesota and forcing many growers to either change their techniques or get out of the business.
Spotted wing drosophila (SWD) primarily attacks raspberries, blackberries and blueberries but can also infest strawberries, grapes and stone fruit, according to the University of Minnesota Extension.
It's affected our raspberries, our strawberries, our grape tomatoes, said Paul Nelson with the Vegetable Farm in Montrose.
Nelson said they spend m