Gt350rc - so im not understanding what trugreen did to kill your lawn. Is the damage from last fall and if so did TG do a grub control for you last spring?The only thing you said was wrong with the lawn was grub damage. Grubs are not actively feeding on the roots until your summer to fall months. Now is the time to apply a grub control. I'm not sure if you put a crabgrass pre emergant down, if you did you should not have done a de-thatching. That will break up your pre-M barrier and alow broadleaf weeds/crabgrass to germinate. Wait until the fall then do a core aeration and overseeding to fill in bare spots. Good luck! Nosparkplugs- Around here TG is more expensive than most of the other spray companies.