Funding for the Spotted Wing Drosophila (SWD) scouting program that collects the data posted on this website comes from: the Oregon Department of Ag, the Washington the Red Raspberry, Washington Blueberry, and Washington Strawberry commissions, the USDA’s Northwest Center for Small Fruits Research, and the clients of Peerbolt Crop Management.

Some field data in both states comes from Peerbolt Crop Management client fields. Data also comes from individual growers and researchers. All data is gathered and reported by identifying fields/sites by the quadrant of the county where they are located.

All grower contact information and exact field/site locations are confidential.

For more information about this site, please contact Peerbolt Crop Management:


phone: 503-289-7287

for information about the company and scouts.

Spotted Wing Drosophila

SWD Data Collection and Reports for Oregon and Washington

SWD Data Charts

This site has been created to collect scouting data and assist with disseminating that data to growers and researchers. The area being scouted includes Oregon and Washington westside counties. Information on this page is being made available as a service to the industry.

  Spotted Wing Drosophila Male
 Photo taken at the end of the season party in the Peerbolt's back yard. Left to right: Jason and his fiancee, Juliann; Hannah and son Ansel; Tom; Glen and his girlfriend, Carmen; Laurel; Lora; and Micah. Hannah's husband, Cyrus, took the photo with assistance from Anna.

We are grateful for a successful 2013 season and look forward to 2014

Tom and Anna Peerbolt
Updated September 16, 2013