What is causing this?

[420benz]

I have several spots like this on my lawn. I use Scotts Fertilizer twice a year, and water when needed.It is Bermuda grass.
thanks

 

[MoonShadows]

Hard to tell from these close ups. Looks to me like two patches in your lawn dying. Looks like it could be grubs. Grubs are the larvae of Japanese beetles, June beetles, and chafers, among others. These C-shaped creatures feast on the roots of grass and plants. Can you easily pull up this brown grass and there are no roots attached? Grubs feed on the roots and the grass dies. You need to treat it or they will only spread.

 

[420benz]

What should I treat it with?

 

[MoonShadows]

There are many grub control products on the market, both chemical and natural. You can Google GRUB CONTOL to read about them. I used Bayer Advanced 700840 Season Long Grub Control Ready-To-Spray, 32-Ounce

 

[MMathis]

There's something [I think it's] called "milky spore" that you can apply to the lawn. It's a non-chemical treatment.

 

[420benz]

Thanks