Spotted Wing Drosophila in Ontario

Photo showing SWD flies on raspberry fruit Photo showing male and female SWD fliesPhoto showing SWD vinegar trap

Spotted wing drosophila (SWD) is an invasive vinegar fly that has the potential to cause extensive damage to many fruit crops. Surveys coordinated by OMAFRA indicate SWD has spread to most fruit producing regions in Ontario.

SWD has become a chronic pest in berry and tender fruit crops in Ontario. Early detection and management are required to limit economic damage.

Figure 1: Map showing SWD trap captures each week by county in 2015- watch the map as it scrolls through the weeks.

Map showing SWD trap captures each week by county in 2015

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For more information:
Toll Free: 1-877-424-1300
E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 8 June 2011
Last Reviewed: 24 July 2015