Hello everyone, I've took great care of my lawn and did the landscaping myself moving four loads of topsoil by hand with nothing more then a shovel and a dirt cart attached to the garden tractor. I had chemlawn do the reseeding (after my attempts failed) and also have them treating it to keep weeds from starting. They came and fertilized/weed control about three weeks ago and then I started noticing some brown spots. These spots got worse and worse and the last time I mowed the lawn looks like we've been in a drought for over 6 months. I'm being told these brown spots could be a disease that took over but at the same time, could it be something Chemlawn did that may have burned it up with fertilizer? Attached are a few pic's. Thanks everyone in advance.