Hello, I live in michigan and I have a problem with my 10 yr old lawn. It's made up of mostly Kentucky blue,and fescue. I have had some problems over the years from turf worms that have left dead spots over my lawn. I have a thick lawn that seemed to harbor these worms. Thatch buildup I rented and core areation was completed. Then I over seeded half my 1.25 acre lawn. I have the irrigation going initially 2-3 times a day for the 1st week. We are getting rain now so that helps with watering. The problem is I see dollar spot starting with trying to keep my seed moist. I had a problem last year with dollar spot because of watering at night. I learn the hard way. The seed needs water and fungus needs dry. Can I spray fungacide now with the grass seed only being down for 1 week? How much watering in the next 2 weeks?