Hello. I am noticing that my lawn is starting to turn brown. I am in Missouri and have fescue. It was fertilized twice this Fall, the last application being a Winterizer. I use Hummerts program on my lawn and follow directions on bag. I'm sure you professionals need more than just a picture but any ideas on what you think caused this would be great. I don't have in ground irrigation but try to water as needed. Also, the area in the pictures are my frint yard that faces south, however I have 2 large oaks in front yard so it's pretty shady.