It appears to be your first time visiting GDDTracker
Please enter your zip code for a customized experience. Also, be sure and watch our video introduction video.
To view color key / range descriptions, please enter your zip code at the top of the screen.
Generously Supported By:
Please note that Dr. Frank has written another helpful article available from the MSU Extension web site.
http://msue.anr.msu.edu/news/timing_crabgrass_pre_emergence_applications
Dr. Kevin Frank has posted a useful article at the MSU Extension website. Please note it is written specifically for Michigan but may apply to other midwest regions.
"Growing degree-days have accumulated quickly, but it may not yet be time to apply plant growth regulators to control annual bluegrass seedheads on golf courses.
Read more: http://msue.anr.msu.edu/news/controlling_annual_bluegrass_seedheads_spray_now_or_wait
All air temperature data has been accounted for now.
