New grass turning yellow . . .
Front yard was aerated, the weedy parts rounduped, and later topped dressed with enriched organic dirt. I seeded and applied Scotts Starter Fertilzer. 2 1/2 months later, lots of watering, 95% of yard looks great EXCEPT a half moon area on other side of walkway from rest of yard.
Last week this area has gone from lush green to a bit of yellowing throughout. On recommendation of a landscaper a month ago I reapplied Starter Fert about 5 weeks after seeding and only this area is now suffering a bit. There could have been some overlapping of fert as this area is not large.
Is this a nitrogen deficiency, have I over-watered, or over fertilized? I thought I do 2 more ferterlizer applications -- Sept and later Oct-- before winter per Scotts instructions for midwest location. Not sure what to do. Grass is nice and thick and don't want to ruin what I've achieved.
pic available for looksee at