Spotted Wing Drosophila (SWD) degree-days (DDs) for selected western locations (updated daily)
Station Location (S to N) SWD DDs June 17, 2018
  Mtn View Moffett Fld CA   1387 DDs
3 days behind 2017
19 days behind 2016
1 days ahead of normal
  Medford OR   859 DDs
2 days ahead of 2017
14 days behind 2016
10 days ahead of normal
  Corvallis OR   653 DDs
5 days ahead of 2017
14 days behind 2016
9 days ahead of normal
  Salem: McNary Field OR   801 DDs
7 days ahead of 2017
14 days behind 2016
16 days ahead of normal
  Aurora OR   766 DDs
6 days ahead of 2017
16 days behind 2016
11 days ahead of normal
  Forest Grove OR   728 DDs
6 days ahead of 2017
13 days behind 2016
13 days ahead of normal
  Vancouver Pearson Fld WA   808 DDs
7 days ahead of 2017
12 days behind 2016
10 days ahead of normal
  HOOD RIVER OR   770 DDs
8 days ahead of 2017
11 days behind 2016
13 days ahead of normal
  Kelso-Longview Airport WA   693 DDs
8 days ahead of 2017
16 days behind 2016
11 days ahead of normal
  Prosser Barricade Hanf WA   1024 DDs
7 days ahead of 2017
11 days behind 2016
10 days ahead of normal
  BurlingtonMount Vernon WA   477 DDs
3 days ahead of 2017
17 days behind 2016
4 days ahead of normal
  Bellingham Int Apt WA   518 DDs
5 days ahead of 2017
17 days behind 2016
17 days ahead of normal
  Abbotsford: B. C. BC   571 DDs
8 days ahead of 2017
16 days behind 2016
8 days ahead of normal
  Agassiz Auto RePting S BC   650 DDs
9 days ahead of 2017
14 days behind 2016
31 days ahead of normal

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.