[Ral1121]

Trying to help a neighbor out. He has Tif 419 and is located in San Antonio. He does cut with a rotary. Was not sure what is causing his grass to turn a yellowish green in the middle of his yard here are some pics. What do y'all think?

 

[Ecks from Tex]

Heating up could stress the grass. How much has he been watering?

 

[Ral1121]

He has been doing twice a week ten minutes a zone. I gave him some of my tuna cans and told him to put it out to see how much water he is putting down. Might be under watering. The edges of his lawn look good though. It's the middle where he is getting yellowish. I checked his sprinkler system and he does get 100% overlap as well.

 

[Rockinar]

Ten minutes does not sound like enough to me. Even trice a week. I turn mine on and go run errands.

 

[Ral1121]

That is what I was thinking but we have also had a ton of rain too in the last week. I was thinking that but also noticed the grass blades being partially brown as well.

 

[Spammage]

Looks like a possible fungal issue to me.

 

[Ral1121]

The yellowing and browning of the leaves makes me think fungal. If it is what should I tell him to put down?

 

[Spammage]

The yellowing and browning of the leaves makes me think fungal. If it is what should I tell him to put down?

With heat coming, I would tell him to lay off the water until the lawn needs it. Bermuda should heel itself quickly enough. I doubt a fungicide app would be any real benefit at this point.