I am in Georgia south of Atlanta and have noticed a large amount of yards with what appears too be dollar spots.Mostly in bermuda yards. I have 2 yards that are infected also .One has outside chemical application and one is fertilized by me.Both no irrigation in a month or so because of rain. The one I fertilized was done with John deere brand with iron added and I think 24 Nitrogen. Then the yard between these 2 lawns is not affected.I see it every where. I have hit my yard with heavy Nitrogen ,but since I am not licensed Fungicide is out.How long will it take for the Nitrogen too help? I called some chemical applicators and they say no one time application.Year long contract only. So what now?