Hard to get a good picture, this is on the side of the garage where the sun hits it. A lot of crab grass in the picture. The dead area is where the grass I am talking about has turned brown already. You can see above it, the green good grass... but where it is brown there are clumps of the odd grass. The odd grass that I am having trouble with, is kind of blue green. Almost like a blue spruce. If you zoom in on the picture you can see the blueish grass. It is shorter, finer, and bluer than regular grass. Spring time you can see it better. With the hot temps here in the midwest it is killing it sooner.