I just sprayed it. A shiit ton lol. A lot more brown out there than I thought. If its a fungus, I should see some results. Intuitively I have always thought(and still think) this is more of an indication that the tree roots are winning out and starving the grass of nutrients. We shall see.
In other news, I saw a legit tarantula in the grass while I was spraying. Biggest spider I have ever seen here, and there are plenty of big wolf spiders. This thing was textured/bumpy and ugly af. I should have taken a picture, but my first instinct was to stomp on that mother fu**ker, lol.