Spotted Wing Drosophila (SWD) degree-days (DDs) for selected western locations (updated daily)
Station Location (S to N) SWD DDs October 15, 2018
  Mtn View Moffett Fld CA   3362 DDs
22 days behind 2017
26 days behind 2016
8 days behind normal
  Medford OR   3002 DDs
12 days behind 2017
19 days behind 2016
DDs now EXCEED full year normal DDs
  Corvallis OR   2470 DDs
13 days behind 2017
8 days behind 2016
DDs now EXCEED full year normal DDs
  Salem: McNary Field OR   2838 DDs
9 days ahead of 2017
7 days behind 2016
DDs now EXCEED full year normal DDs
  Aurora OR   2712 DDs
8 days behind 2017
15 days behind 2016
DDs now EXCEED full year normal DDs
  Forest Grove OR   2617 DDs
1 days ahead of 2017
same as 2016
DDs now EXCEED full year normal DDs
  Vancouver Pearson Fld WA   2859 DDs
12 days ahead of 2017
16 days ahead of 2016
DDs now EXCEED full year normal DDs
  HOOD RIVER OR   2754 DDs
35 days ahead of 2017
19 days ahead of 2016
DDs now EXCEED full year normal DDs
  Kelso-Longview Airport WA   2544 DDs
DDs now EXCEED full year 2017 DDs
1 days behind 2016
DDs now EXCEED full year normal DDs
  Prosser Barricade Hanf WA   3266 DDs
7 days behind 2017
20 days behind 2016
DDs now EXCEED full year normal DDs
  BurlingtonMount Vernon WA   1834 DDs
1 days behind 2017
23 days behind 2016
DDs now EXCEED full year normal DDs
  Bellingham Int Apt WA   1987 DDs
37 days ahead of 2017
19 days behind 2016
DDs now EXCEED full year normal DDs
  Abbotsford: B. C. BC   2179 DDs
13 days ahead of 2017
18 days behind 2016
DDs now EXCEED full year normal DDs
  Agassiz Auto RePting S BC   2296 DDs
13 days ahead of 2017
15 days behind 2016
DDs now EXCEED full year normal DDs

In presenting this information, we wish to stress that errors can occur. Use the information with caution. Predictive models do not replace the need for monitoring in the field. If you observe conditions that differ substantially from model predictions, please contact Len Coop to determine if the model inputs were incorrect, if the model functioning or weather data are in error, or if the model is inappropriate for your conditions.