i've seen fertilizer burns, but what do herbicide burns look like? i just started, got a new spray unit, and sprayed 35 gallons from my tank on 20K of lawns. When I used to work for my old company we put it down at 1 gal/per 1K. I used 3-Way at 90 oz. to fill up the tank to 60 gallons (1.5 oz. per 1 gallon of water). I'm extremely worried that I put down too much chemicals and might be replacing a couple yards. If a lawn is burnt by herbicide will it come back? I know grass seed doesn't grow in areas where premergence was applied, can sod be put down though? How long should you wait to apply another application of herbicide in the same area? (sprayed chickweed in one lawn..they called because speedwell was growing where the chickweed was starting to die. I went back after 5 days to spray the same area) Please ease my suffering. Or give me the bad news.