Spotted Wing Drosophila (SWD) degree-days (DDs) for selected Central US locations (updated daily)
Station Location (S to N) SWD DDs November 12, 2018
  College Stn Eerwood Fl TX   6911 DDs
26 days behind 2017
13 days behind 2016
27 days ahead of normal
  Searcy Muni Apt AR   5333 DDs
8 days behind 2017
21 days behind 2016
DDs now EXCEED full year normal DDs
  Bowling Green-Warren C KY   5085 DDs
DDs now EXCEED full year 2017 DDs
9 days behind 2016
DDs now EXCEED full year normal DDs
  Carbondale Murphysboro IL   4504 DDs
15 days ahead of 2017
19 days behind 2016
DDs now EXCEED full year normal DDs
  Quincy Reg-Baldwin Fld IL   4228 DDs
DDs now EXCEED full year 2017 DDs
11 days behind 2016
DDs now EXCEED full year normal DDs
  Champaign Urbana Univ IL   3967 DDs
5 days ahead of 2017
18 days behind 2016
DDs now EXCEED full year normal DDs
  Lafayette Purdue Univ IN   3741 DDs
DDs now EXCEED full year 2017 DDs
7 days behind 2016
DDs now EXCEED full year normal DDs
  Peoria Greater Peoria IL   4026 DDs
DDs now EXCEED full year 2017 DDs
25 days behind 2016
DDs now EXCEED full year normal DDs
  Rochelle Muni-Koritz F IL   3140 DDs
DDs now EXCEED full year 2017 DDs
33 days behind 2016
DDs now EXCEED full year normal DDs
  Janesville-Rock County WI   3262 DDs
DDs now EXCEED full year 2017 DDs
33 days behind 2016
DDs now EXCEED full year normal DDs
  Prairie Du Chien Muni WI   3152 DDs
DDs now EXCEED full year 2017 DDs
32 days behind 2016
DDs now EXCEED full year normal DDs
  Baraboo Wisconsin Dell WI   2886 DDs
DDs now EXCEED full year 2017 DDs
27 days behind 2016
DDs now EXCEED full year normal DDs
  Fond Du Lac Co Apt WI   2870 DDs
DDs now EXCEED full year 2017 DDs
38 days behind 2016
DDs now EXCEED full year normal DDs
  Green Bay Austin Strau WI   2775 DDs
DDs now EXCEED full year 2017 DDs
26 days behind 2016
DDs now EXCEED full year normal DDs
  Minneapolis / Blaine MN   3151 DDs
DDs now EXCEED full year 2017 DDs
34 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.