I searched, but found little..... so..... here goes. I have a lawn that is mowed high ( 3 - 4 inches), watered well, (not over watered) and manicured often. I do the fertilization and weed control and know it was not overdone. The soil is a sandy soil that is unusual in my area of the state but I have 5 other lawns in the same area (same soil) with no problems. One is right next door. The grass died. Not in circles, not in stripes, not in small patches. It did not go dormant, the plant is gone, bent over, and deteriated away. In a 2000 square foot area there may be 10 square feet of good lawn if you grouped all the sparse sprigs together. I am going to take a soil sample to the county for examination but would like any ideas I can get from you guys also. My plan is to go in there with an aerator / seeder and plant new grass in the fall. I am worried that the soil is sour???