I just put a former TG guy on a test run. He mixed this batch. 2 50lb bags of urea, 3 cups of sprint 138 Chelletted iron 50 oz Speed Zone 1 oz Octane SC 200 gal water Now I told him to spray before 10 am so it was around 75 deg F. The problem is I have never burned a lawn so I don't know what it looks like but the lawn he sprayed is yellow bad in most areas. This is a week 2 days later. Some spots are not yellow though. It looks like insects have eaten the roots out. This is not the case but after asking him what his process to the spray was he said this, I changed the nozzle out too the 3 gal instead of the 2 gal tip and sprayed it heavy overlapping it good. I didn't miss anything he said. I'm thinking over soaked? Maybe to much overlapping? I don't know but its bad! It looks like its dead really. The customer is going nuts and I don't know what to do for the lawn. Any help on what to do would be so helpful! From the right way to explain to the customer to the reviving steps of the lawn if its not dead... I figured by turning the water up would be the first thing to do. The area of turf is about 10k and Mostly KGB 80 % with some Fine fescue 10%/ Rye mix 10%. I'm really sweating this bad. I don't think the guy is going to make my crew but until I figure out what happened I'm putting his chance of hire on hold. I feel it might have been something else like a bad product. Thanks so much everyone on the site, everyone is such a great help and most are team players all the way!