This page generates degree day maps for a selected pest. The pest provides the base and ceiling values used in the degree day calculation. The IEM's Climodat Stations are used for the daily high and low temperatures. IEM Autoplot 97 is the backend that generates the maps/data here.


Seedcorn Maggot (Delia platura)

Key Degree Day Levels

  • January 1: Start Date
  • 360: Peak adult emergence (1st generation) and egg-laying
  • 781: Pupation, "fly-free" period begins

Learn more here!


Download point data: As CSV   As Excel

Point Data & Forecast

Select from the available stations for the observed data and a point forecast based on the NWS NDFD and NWS GFS Model.


Observed
DD Accum:
NWS NDFD 7 Day Forecast
DD Accum:
DD Total:
NWS GFS 14 Day Forecast
DD Accum:
DD Total: