Hi Juliana,

Thanks for reaching out to us with regards to your lawn!

To better help understand the issue, we have a few follow-up questions for you:
- What species of turfgrass do you have?
- How did you determine the sprinkler system is working correctly? Did you do an irrigation audit?
- What do your mowing practices look like?
- Could you send additional photos that include a close-up view of the grass blades?

Based on the information that you did provide, it does look like the lawn might be drought stressed. The wheel/tire marks in the turf are signs of drought stress, and we have been having a hot and dry summer. It also looks like the grass might be being mowed too short, which can exacerbate drought stress. If your turf is Kentucky bluegrass, then it is going to have a harder time in this summer heat!

Some turf species naturally go dormant this time of year and go brown. If your turf contains Poa trivialis or Poa annua, those grasses go dormant over the summer and are brown no matter how much you're watering. Check out this info sheet for more info on roughstalk bluegrass.

However, drought stress can make a lawn more susceptible to other issues as well, so it might not be the only thing going on. For instance, your turf might also be suffering from Ascochyta blight, but we would need close-up pictures of the grass blades to better determine this.

If the problems are due to drought stress or a combination of drought stress and Ascochyta blight, then you should be able to get back to healthy turf by following best lawn care practices and being patient. It can take several weeks for turfgrass to recover.

Thanks again for reaching out, and let us know if you have any additional questions!

Caitlin W. and Janet P.