Spotted Wing Drosophila (SWD) degree-days (DDs) for selected western locations (updated daily)
Station Location (S to N) SWD DDs November 12, 2018
  Mtn View Moffett Fld CA   3696 DDs
30 days behind 2017
34 days behind 2016
9 days behind normal
  Medford OR   3161 DDs
17 days behind 2017
30 days behind 2016
DDs now EXCEED full year normal DDs
  Corvallis OR   2608 DDs
16 days behind 2017
11 days behind 2016
DDs now EXCEED full year normal DDs
  Salem: McNary Field OR   3000 DDs
DDs now EXCEED full year 2017 DDs
8 days behind 2016
DDs now EXCEED full year normal DDs
  Aurora OR   2851 DDs
1 days ahead of 2017
21 days behind 2016
DDs now EXCEED full year normal DDs
  Forest Grove OR   2750 DDs
DDs now EXCEED full year 2017 DDs
same as 2016
DDs now EXCEED full year normal DDs
  Vancouver Pearson Fld WA   3004 DDs
DDs now EXCEED full year 2017 DDs
DDs now EXCEED full year 2016 DDs
DDs now EXCEED full year normal DDs
  HOOD RIVER OR   2877 DDs
DDs now EXCEED full year 2017 DDs
DDs now EXCEED full year 2016 DDs
DDs now EXCEED full year normal DDs
  Kelso-Longview Airport WA   2652 DDs
DDs now EXCEED full year 2017 DDs
7 days behind 2016
DDs now EXCEED full year normal DDs
  Prosser Barricade Hanf WA   3390 DDs
14 days ahead of 2017
39 days behind 2016
DDs now EXCEED full year normal DDs
  BurlingtonMount Vernon WA   1926 DDs
DDs now EXCEED full year 2017 DDs
38 days behind 2016
DDs now EXCEED full year normal DDs
  Bellingham Int Apt WA   2078 DDs
DDs now EXCEED full year 2017 DDs
30 days behind 2016
DDs now EXCEED full year normal DDs
  Abbotsford: B. C. BC   2257 DDs
DDs now EXCEED full year 2017 DDs
29 days behind 2016
DDs now EXCEED full year normal DDs
  Agassiz Auto RePting S BC   2390 DDs
DDs now EXCEED full year 2017 DDs
12 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.