Midge emergence maps
The map provides an indication of the range of accumulated wheat midge Degree Days (DD) since March 1st. Field scouting should be intensified as the 10% threshold ranged is reached. Based on the DD emergence thresholds you should expect to see emergence patterns as follows:
Midge emergence map
Click here to view terms and conditions of map use
Commentary
This is the final update for the 2009 wheat midge DD mapping tool.
Wheat midge emergence should now be complete across the prairies based on accumulated DD.
This site will be updated as the 2009 fall harvest survey and 2010 risk forecast maps become available. All the best for a successful harvest season.
If you have any comments about the CWB's midge map, please e-mail CWB agronomist Mike Grenier at mike_grenier@cwb.ca
These maps are provided for informational purposes only and represent an estimation of wheat midge development. These maps are not intended to replace in field scouting in order to assess local conditions. Farmers should monitor their fields during heading and flowering for the presence of adult wheat midge.
The materials located on this site are protected by copyright, trademark and other forms of proprietary rights and are owned or controlled by the CWB. Any reproduction of all or some of the content contained herein is strictly prohibited. The CWB shall not be liable to you and/or any third party for any damages of any kind, whether foreseeable or unforeseeable, arising out of or relating to the contents or performance of these maps.
