I planted a new lawn this spring, in Portland, OR. It's a mix of Perrenial Rye Grass and Fescue (JB Sun & Shade blend), and it was planted from seed. It was coming in well for the most part, but last week, a huge portion of it suddenly died off/turned a very light tan.
I think I may have overwatered? I'd been doing it on an almost daily basis for the first couple weeks--not terribly heavily-- then switched to every couple days (mostly in the evening, which I've since read is a mistake). But then we had a week of really hard rain. It was shortly thereafter that the damage set in. Does this look like a fungus problem?
I had also fertilized it the previous week, so I'm wondering if I screwed up the application and overdid it in this section of the yard.
If it is an issue of overwatering, will I need to till it and re-seed? Or is there something I can do to nurse it back to health? Is there something I should do to stop the spread of fungus (if that's the case)?