By popular demand, we have joined with Michigan State to include Indiana sites in GDD Tracker (http://www.gddtracker.net/). This site allows you to quickly and easily check your current growing degree day accumulation. It also uses a number of models to help with decisions on timing of growth regulators for Poa annua seedheads, preemergence herbicides for crabgrass, and broadleaf herbicides for dandelion. As we move through the summer, models for white grub applications as well as diseases will also be added to the page. By entering your zip code in the lower right box, GDD Tracker automatically saves your location for future use, saving the time to click through the early pages to center on Indiana. We are always looking to improve this site, so please contact zreicher@purdue.edu with suggestions.