Does anyone have any ideas what would lead to this? (In Va, 80 degree days for a week, nights at 60, about 1/4 N per k this spring, heavy P early last fall, 1/3 N per k in Dec.) It's mowed at about 3.5-4". No irrigation and getting a little dry this past 10 days. 10,000sqft and about 80% setting seed. Looks bad a day after mowing because sheared seed heads yellow and give a yellow tint to the lawn. Grass is green and all micros are in order. Any ideas?