Carol- What you are seeing is fertilizer damage caused by the heavy rain pooling the fertilizer nutrients in spots and killing the young grass roots. The good news is that you were able to establish grass in June. This is very difficult to do, because our lawn grasses are cool season grasses (i.e. - they like temperatures below 90 degrees). Now for the bad news, you will need to reseed the brown patches. Depending what your temperatures are like in Ohio, you may need to hold off till mid-August for cooler temperatures. When you reseed these patches, use a garden rake to loosen the soil in those areas. Then spread your grass seed over the patches and lightly rake it in. Then take your garden rake or hoe and tamp down the soil to insure that your grass seed is in good contact with the soil. The best time to fertilize your lawn is in the fall after a killing frost. This insures that you fertilize the grass and not any annual weeds. In addition, this will help your grass to go into the winter with strong roots and good food reserves. I hope this helps,