If the patches were caused by fungus, and I don't first treat the
fungus, will it prevent new seeds (tall fescue) from germinating?
The patches are irregular areas, several feet in each dimension. They
developed in mid August. Due to extreme heat and humidity in early
summer, fungus has been a lawn problem here in central New Jersey, so
I'm assuming that's my problem too.
I overseeded on September 6, and water daily for 10 or 15 minutes at
10:30am, 12:30pm, and 2:30pm. Germination is not very good in the
original brown areas, which happen to be the sunniest areas. So maybe
I'm not watering enough.