Bermuda Getting Brown, Especially on Tips
I have bermuda grass and live in Arizona...hot summers. Am currently watering 20 min per day (starting at 11pm) 3 days per week. I've noticed the past couple of weeks that when I cut my lawn the tips of many of the blades are brown, and other stalks are brown (see images below). What is this indicative of? Just that I might need to water more? Or add some weed and feed?