Spotted Wing Drosophila

Spotted Wing Drosophila

Spotted wing drosophila, Drosophila suzukii, has recently been found in many California counties infesting ripening cherry, raspberry, blackberry, blueberry, and strawberry crops; it has also been observed attacking other soft-flesh fruit such as boysenberry, varieties of Japanese plums, plumcots, and nectarines. Adults and maggots closely resemble the common vinegar fly, Drosophila melanogaster, and other Drosophila species that primarily attack rotting or fermenting fruit. The spotted wing drosophila, however, readily attacks undamaged fruit. See identification key(1.1 MB, PDF) to Drosophila suzukii from Oregon Department of Agriculture for help with distinguishing this pest from other flies.

Provisionary Guidelines: Management on Cherries in Home Garden Situations