Have a switchgrass project in progress at my cousin's property. This past spring summer sprayed numerous times with gly and 2-4d. Hit it with Simazine in early September. Its bare dirt and I plan to frost seed very soon. Will hit again with Simazine in March and then if we have any stubborn weeds was wondering about the safe use of Triad Select TZ on our newly established switchgrass next summer? Is this product safe on new Switchgrass? I have used Triad Select in the past and it seemed to work pretty good without harming my switchgrass. I am unsure what is in the newer Triad Select TZ and if its safe on new switchgrass.