Hi guys, I planted my lawn myself about 5 months ago and it was doing fairly ok. As expected some weed started to grow all over the lawn and I headed to my local Home Depot to ask for advice. They told me to use Bayer Advanced Southern Weed Killer for lawns.(pic attached) I applied it once and consumed only a very small portion of the spray bottle, it regulated the content pretty well. Bad luck that is started to rain a couple of hours later. After a few days, I noticed that the weeds were still there, so I decided to apply the killer again(thought that probably the rain washed it out before). This time I expected the bottle to regulate the product as good as it did it before and started to water my garden the same way.. When I took a look at the bottle, it had consumed almost half of it and I wasn't even in the first half of the lawn. I then hurried up and walked really quick to finish up the whole thing. It looks like for some reason the regulator the bottle has inside broke and mixed too much product. Results, after a few weeks my lawn now looks like these pics. The bottle said clearly that It Wont Harm Laws, but.... did I kill my lawn? Is there a way I can save it? I thought going back to HD and buy some fertilizers but I better get good advice here first. Thanks in advance! FYI: I leave in S.Florida and the grass is Palmetto.