Most wheat is at Feekes scale 10.1 or older, this is often called the early heading stage. At this growth rate wheat is about 3-5 days behind normal heading date. You need to spray a late as possible per the label of fungicide used, because most fungicides do not translocate well in the plant. We need to protect the head of wheat and the flag leaf during this time. You may want to add an insecticide to help control aphids and stink bugs. The picture below is a stink bug on the head of triticale in an oat field.
Headline, Stratego, Quilt, Quadris, Folicur+Tilt, or one of many others.
All should be applied per the label of fungicide used. Most full heading (10.3) should occur before April 1, 2013.
Please be sure to visit and support this site, www.georgiaweather.net – it has a lot of good information.
*Follow label on all Pesticides, rinse and dispose of empties properly. Info Georgia Pest Management Handbook 2014