Alternative methods for managing spotted wing drosophila (Drosophila suzukii)

A serious threat to US fruit producers is the recent discovery of spotted wing drosophila (SWD). This is an invasive species from Asia that was first discovered in the US in 2008. After detection in the US, yield loss estimates climbed up to 80%, depending on crop and location. This rather small vinegar fly or fruit fly attacks ripening or ripe, soft fruits including: grapes, blackberry, blueberry, boysenberry, raspberry, strawberry, and tree fruits (peach, apricot, cherry, mulberry, nectarine, persimmon, and plum). This insect has negatively impacted IPM practices, requiring timed sprays every 7 days. This research will look into alternative management practices for spotted wing drosophila that can help growers reduce their reliance on pesticide by utilizing cultural control methods and native hosts as a trap crop.