It looks terrible.
Dig up one of the bad spots and shake the clump over a piece of white paper. If you have cinch bugs they will fall on the white paper.....look like little house flies. Extension Office told us to use Sevin spray on the lawn in May and again in July.
Hi Doris! It is terrible to work so hard on your yard and see the damage. I refer you to these links for more information and good tips. Good luck to you Doris on getting your lawn back to where you wish it to be.
If you have small children, be extremely cautious when applying Sevin in your landscape. It works well, but can have adverse effects on health, depending upon application amounts.