Summary

Spotted wing drosophila (SWD), Drosophila suzukii, a pest of Asian origin, was recently confirmed (8/10/12) in several counties throughout Minnesota. This new pest will pose significant challenges to small fruit producers since SWD has many generations per year, and the females lay their eggs directly into the fruit of raspberry, blackberry, blueberry, grapes and several other fruit crops. This page highlights several updates for SWD in Minnesota, including: fact sheets, distribution maps, and both conventional and organic Insecticidal control and cultural control options. This page will be updated as more information becomes available.

Media Releases

SWD in Minnesota A Worst-case Scenario for Invasive Insect Pests and Berry Growers (Bill Hutchison, 9/10/12)

Spotted Wing Drosophila found in Minnesota (press release)

Biology & Management Information

Spotted Wing Drosophila Pest Profile (Univ. of Minn.)

Current Distribution of Spotted Wing Drosophila (MN & WI: 9/25/12; Minn. Dept. of Agric.)

Identification

Spotted Wing Drosophila Identification Guide (Oregon Dept. of Agric.)

Digitally-enhanced Review of Current Drosophila spp. in Minn. (Dr. Paul Tinerella)

Trap Construction & Use

Monitoring for Spotted Wing Drosophila (YouTube video, Michigan State University)

SWD Vinegar Trap Instructions (Oregon State University)

Additional Resources

MSU’s Spotted Wing Drosophila site

NC Region IPM Fact Sheet

Spotted Wing Drosophila adult

Media Contacts/Questions:
Commercial Fruit Growers: Mark Asplen, Research & Extension Associate, asple001@umn.edu
Gardeners, Homeowners: Jeff Hahn, Extension Entomologist, hahnx002@umn.edu