Spotted Wing Drosophila (SWD) degree-days (DDs) for selected Central US locations (updated daily)
Station Location (S to N) SWD DDs August 14, 2018
  College Stn Eerwood Fl TX   4699 DDs
11 days behind 2017
1 days behind 2016
8 days ahead of normal
  Searcy Muni Apt AR   3626 DDs
same as 2017
1 days behind 2016
11 days ahead of normal
  Bowling Green-Warren C KY   3422 DDs
1 days ahead of 2017
2 days ahead of 2016
20 days ahead of normal
  Carbondale Murphysboro IL   3084 DDs
1 days ahead of 2017
same as 2016
11 days ahead of normal
  Quincy Reg-Baldwin Fld IL   2912 DDs
6 days ahead of 2017
5 days ahead of 2016
22 days ahead of normal
  Champaign Urbana Univ IL   2645 DDs
same as 2017
1 days ahead of 2016
16 days ahead of normal
  Lafayette Purdue Univ IN   2514 DDs
8 days ahead of 2017
4 days ahead of 2016
11 days ahead of normal
  Peoria Greater Peoria IL   2759 DDs
6 days ahead of 2017
2 days ahead of 2016
19 days ahead of normal
  Rochelle Muni-Koritz F IL   2145 DDs
10 days ahead of 2017
same as 2016
12 days ahead of normal
  Janesville-Rock County WI   2249 DDs
9 days ahead of 2017
same as 2016
17 days ahead of normal
  Prairie Du Chien Muni WI   2252 DDs
14 days ahead of 2017
3 days ahead of 2016
14 days ahead of normal
  Baraboo Wisconsin Dell WI   2053 DDs
16 days ahead of 2017
2 days ahead of 2016
18 days ahead of normal
  Fond Du Lac Co Apt WI   2013 DDs
8 days ahead of 2017
same as 2016
11 days ahead of normal
  Green Bay Austin Strau WI   1957 DDs
14 days ahead of 2017
4 days ahead of 2016
29 days ahead of normal
  Minneapolis / Blaine MN   2295 DDs
18 days ahead of 2017
1 days ahead of 2016
10 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.