Looks very similar to how mine looked last year. First thing decided was that my height of cut was too tall. I then decided to mow it shorter and my rotary scalped too much and tore the grass up as well. I found a used reel mower on craigslist and began using it this season. Keeping it just over a half inch tall, before it was probably 2"+ tall. So far this year my lawn is much healthier than it was last year. Not near where I want it but it is doing much better. I have also adjusted my irrigation times as Ware has suggested.