Fruits targeted by this pest include strawberry, raspberry, blueberry, plum, peach, cherry, and grape. Damage is seen initially as tiny scar on the skin of the fruit, and then the skin collapses and may become moldy in the area where the egg was laid and the larva is developing. The larvae will feed inside the fruit for 5-7 days. Adult females can lay up to 350 eggs in a lifetime.
- WSU Mount Vernon NW WA Research Center Spotted Wing Drosophila Updates
- WSU Whatcom County Extension SWD Information
- FS049E: Spotted Wing Drosophila (SWD): Monitoring, Identifying, and Fruit Sampling
- WSU IPM Spotted Wing Drosophila Bulletin