Spotted Wing Drosophila (SWD) degree-days (DDs) for selected Central US locations (updated daily)
Station Location (S to N) SWD DDs September 24, 2018
  College Stn Eerwood Fl TX   6008 DDs
9 days behind 2017
same as 2016
11 days ahead of normal
  Searcy Muni Apt AR   4765 DDs
4 days ahead of 2017
2 days behind 2016
30 days ahead of normal
  Bowling Green-Warren C KY   4537 DDs
13 days ahead of 2017
6 days ahead of 2016
DDs now EXCEED full year normal DDs
  Carbondale Murphysboro IL   4072 DDs
8 days ahead of 2017
1 days behind 2016
48 days ahead of normal
  Quincy Reg-Baldwin Fld IL   3896 DDs
18 days ahead of 2017
10 days ahead of 2016
DDs now EXCEED full year normal DDs
  Champaign Urbana Univ IL   3609 DDs
7 days ahead of 2017
3 days ahead of 2016
DDs now EXCEED full year normal DDs
  Lafayette Purdue Univ IN   3422 DDs
21 days ahead of 2017
9 days ahead of 2016
DDs now EXCEED full year normal DDs
  Peoria Greater Peoria IL   3726 DDs
14 days ahead of 2017
2 days ahead of 2016
DDs now EXCEED full year normal DDs
  Rochelle Muni-Koritz F IL   2948 DDs
27 days ahead of 2017
same as 2016
DDs now EXCEED full year normal DDs
  Janesville-Rock County WI   3086 DDs
27 days ahead of 2017
same as 2016
DDs now EXCEED full year normal DDs
  Prairie Du Chien Muni WI   3024 DDs
27 days ahead of 2017
5 days ahead of 2016
DDs now EXCEED full year normal DDs
  Baraboo Wisconsin Dell WI   2777 DDs
DDs now EXCEED full year 2017 DDs
9 days ahead of 2016
DDs now EXCEED full year normal DDs
  Fond Du Lac Co Apt WI   2736 DDs
24 days ahead of 2017
2 days behind 2016
DDs now EXCEED full year normal DDs
  Green Bay Austin Strau WI   2660 DDs
DDs now EXCEED full year 2017 DDs
9 days ahead of 2016
DDs now EXCEED full year normal DDs
  Minneapolis / Blaine MN   3086 DDs
DDs now EXCEED full year 2017 DDs
7 days ahead of 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.