How do I know if its fungus, grubs, soil, or water problem? (pic)
I try all summer to save the lawn but it turns yellowish and dies.
Type of grass? I have no idea, its the sharp edged playground grass that feels smooth when you run your finger from tip to root and feels like sandpaper when you run your finger from root to tip.
We water 3 times a week during the heat of the summer, 2 times a night, 20 minutes each. The soil is quite clayish. It's HOT here in summer, consistant temps over 105 from end of June to end of August. Many days in July are over 110.
HOW can I find out WHAT I'm doing wrong? I'm willing to change anything I'm doing but I don't know how to begin finding that out.
I have some people tell me I need to water more often because the roots are shallow from the clay soil. I have others tell me I need to water less frequently to train the roots to grow deeper.
Here's a pic of the two WORST spots although much of the lawn needs help.