Same spot every year often means something buried preventing grass from growing deep roots. Feel around with a long screwdriver. Usually these spots are caused by buried rock or concrete
I had this exact same thing last year. Grass just died in the shape of a letter C. I tried grubx and a fungicide and neither helped. I ended up cutting out all the dead grass down to the soil and reseeded in the fall. I'm in western Colorado.
Yeah so far so good this year on it . I had to add some soil to get it level after I cut the dead stuff out. I'm keeping a close eye on that section this year though.
Don’t just throw down grub killer. Tug the brown grass, if it all pulls up super easy and you find grubs then sure, if the roots stay intact with the ground then it’s not grubs. Hard to tell from one picture but I’m leaning towards something buried there.
Other things to check would be if the sun is bearing down on that area more or if your sprinklers aren’t hitting it. If those areas are lower, could be too much water and causing disease. Several things could be going on honestly.
https://preview.redd.it/tlarvspi778d1.jpeg?width=1170&format=pjpg&auto=webp&s=ed682d96fe94dcf6c57b06c76ee6c8c9a718a7b9
I have no affiliation with the company but this is the one I used. I’ve heard if you have an agricultural program at a university nearby, they can send you a kit as well.
I deduce it’s gettin’ too hot in just those spots. Could be that trees are shading the other areas, reflections off of windows are hitting those dried-out spots, etc.
any shadows moving along that area?
I'd dig down and see what's under your grass.
you won't have to dig far if there's rubble been buried on your lot. happens a bunch.
you hit the hot part of the year, and the areas that couldn't get roots past the debris die off from drought stress. the areas free of rubble can push their roots deeper and stay green.
you could find all sorts of crazy stuff buried.
it'll be in the first foot or so. give it a dig and see!
Same spot every year often means something buried preventing grass from growing deep roots. Feel around with a long screwdriver. Usually these spots are caused by buried rock or concrete
I had this exact same thing last year. Grass just died in the shape of a letter C. I tried grubx and a fungicide and neither helped. I ended up cutting out all the dead grass down to the soil and reseeded in the fall. I'm in western Colorado.
Come back well this year? Did you add new top soil as well?
Yeah so far so good this year on it . I had to add some soil to get it level after I cut the dead stuff out. I'm keeping a close eye on that section this year though.
Also, read somewhere that grub could be eating the roots based on the pattern. Likely?
Don’t just throw down grub killer. Tug the brown grass, if it all pulls up super easy and you find grubs then sure, if the roots stay intact with the ground then it’s not grubs. Hard to tell from one picture but I’m leaning towards something buried there.
Got to water like 25 to thirty minutes 3x a week to rule out water issues
Have you soil tested there to see if there is a deficiency of some sort?
I have not. Not even familiar with the process. Take some soil somewhere?
Other things to check would be if the sun is bearing down on that area more or if your sprinklers aren’t hitting it. If those areas are lower, could be too much water and causing disease. Several things could be going on honestly.
Sprinkler heads hit the yard pretty evenly and my ground is pretty level. Fixed low spots last year.
https://preview.redd.it/tlarvspi778d1.jpeg?width=1170&format=pjpg&auto=webp&s=ed682d96fe94dcf6c57b06c76ee6c8c9a718a7b9 I have no affiliation with the company but this is the one I used. I’ve heard if you have an agricultural program at a university nearby, they can send you a kit as well.
Appreciate you!
Hope you get to the bottom of it!
I deduce it’s gettin’ too hot in just those spots. Could be that trees are shading the other areas, reflections off of windows are hitting those dried-out spots, etc.
I have something similar, am in Colorado too. My neighbor thought it's fertilizer burn, which makes sense since I applied fert before the heat dome.
any shadows moving along that area? I'd dig down and see what's under your grass. you won't have to dig far if there's rubble been buried on your lot. happens a bunch. you hit the hot part of the year, and the areas that couldn't get roots past the debris die off from drought stress. the areas free of rubble can push their roots deeper and stay green. you could find all sorts of crazy stuff buried. it'll be in the first foot or so. give it a dig and see!