MU Extension > Northwest Missouri Horticulture > Recent problems > Spotted wing drosophila

Spotted Wing Drosophila

Spotted Wing Drosophila has been found in fruit crops all over Missouri, starting in 2013. This reference page includes articles, photos, and links to web sites with more information. Photos are at bottom of this page.

Newspaper columns from Tim Baker, NW Region Horticulture Specialist

Spotted Wing Drosophila, Sept. 5, 2013

MU Extension and Lincoln University Cooperative Extension resources

• Integrated Pest Management article, Aug. 2013
  Detecting larval infestations and insecticidal options for Spotted Wing Drosophila, a significant pest of small fruit crops in Missouri (PDF)
• Integrated Pest Management article, Aug. 2013
  Integrated Pest Management of Spotted Wing Drosophila with Emphasis in High Tunnel Grown Fall Bearing Primocane Raspberries

Resources from other universities

• Michigan State University SWD page
  Includes instructions for making traps.
• Michigan State University SWD fact sheets
• Oregon State University SWD page
• Cornell University SWD page
• University of Massachusetts SWD page

Photographs

These photo graphs were taken in a high tunnel in the Northwest Missouri.  Photos by Tim Baker, copyright 2013. Newspapers may use with appropriate credit.

Spotted Wing Drosophila on side of raspberry

Spotted Wing Drosophila on side of raspberry

Raspberry infested with Spotted Wing Drosophila

Spotted Wing Drosophila larvae in infested raspberry

Both male and female SWD adults are seen inside this raspberry fruit

Two SWD adults are seen inside this raspberry fruit

Damage inside this SWD-infested high tunnel was close to 100%

The following photos are of SWD which were frozen to do close-up work. Some of them were stained by the raspberry juice around them. Freezing them changes the color to some degree, especially in the eyes. The above photos better represent eye color in living specimens.

Male SWD clearly showing the spots on the wings.

Female SWD do not have spots on their wings.

SWD larva in raspberry fruit.