I aerated/seeded fescue and put down a little lime (red clay type soil) this past fall at a customers lawn. Just spoke to her today and she said it took off great but then some areas started turning yellow and saw the tips of the blade start to get brown. I took some plugs for a soil sample today but the wait period is 9 weeks and I'd love to keep this customer. Any advice at this point? Its pretty cool here, 40's-30's at night, in the Piedmont of NC. And no unfortunately we couldn't take a soil sample this past fall. She did say heavy leaves were left on the turf for about 3 weeks and she did put out some straw on some areas in the lawn. Fungi? Thanks!