Early fungus issues

This is what I have been fighting before this showed its face. Its been dry and the issues have been in areas that do not stay wet.

Water restrictions have me stuck to two days a week I do not have an irrigation system. I’m just using IMPAC sprinklers for the larger areas and I’ve made up small three and four head movable above ground set up for the smaller areas around the house. So my normal routine is to get up around four 430 set up the rotary impact sprinkler which covers approximately a 30 foot radius at the end of the hose. I get 5 gallons a minute so because of time constraints I will water that area for one hour. Then I move the sprinkler to the next largest section and water for one hour, the areas that I use the above ground sprinkler head system put out more water than the impact sprinkler so I don’t have to run them quite as long by the time I’m finished Thursday morning I’m running off to work. I repeat the process on Sundays if needed on April 20 we had 2 1/2 inches of rain. The area where I have the most fungus outbreak is actually the driest in my yard. I went probing into the soil and it’s already pretty dry already this morning. I am not going to water. I’m hoping we get a quarter or half inch of rain that might come through tonight. Other than that we’re looking at another week plus with no rain , here’s some actual pictures that I took this morning as I was running out the door I’m trying not to walk all over it to spread it like I said it seems isolated. I’m hoping it’s just attacking weaker strains of grass in my yard.

I have a plied eagle 20 EW 2 ounces per thousand square feet mixed with 2 gallons of water on about a third of my yard so far I’m going to tempt to get the rest done today after work.
Pictures of my fungus