Why are there strange symmetrical patterns and holes in my lawn?
Strange patterns and tiny holes appearing in turf during hot weather or after rain are often caused by subsurface issues or earthworm activity. Property owners trying to figure out if these marks stem from heat stress or buried structures are left guessing about how to treat the lawn without knowing the exact source.
What the numbers show
Counted from the threads quoted below. How we count
- Most of it landed at once — the busiest month was September 2026, with 5 people.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Digging up the lawn to see what is buried underneathDid this help you?
- 2Putting down grub killerDid this help you?
- 3Waiting for the lawn to bounce back on its own since damage is minorDid this help you?
- 4Treating the lawn for grubsDid this help you?
- 5Guessing the culprit based on common wildlife like armadillos, skunks, raccoons, and squirrelsDid this help you?
- 6Asking AI tools for identificationDid this help you?
- 7Cutting back on wateringDid this help you?
- 8Waiting for the grass to grow and ignoring the bugsDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“I found this understood the front lawn this year, where the grass wouldn't grow well”source ↗
“Any idea what they exactly are? They only show up when I walk or mow the lawn.”source ↗
“Just notices these tiny holes in a small part of our lawn. Anyone knows what cause this? Hope its just earthworms”source ↗
“I get those every spring, usually after a good rain.”source ↗
“We have armadillos, skunks, raccoons and squirrels which is what I usually see answered these kinds of things. I haven’t quite seen a picture like this and was hoping to get some advice on what it is.”source ↗
“This is a small section.. my entire front yard looks like this.”source ↗
“Just curious about which of these are doing this much work out there!”source ↗
“I don’t have any answers for you, but also noticed a few days ago that I had a ton of gnats and moths in my yard that usually aren’t there.”source ↗
Where this came up
People with this problem also raised
- 15How do I identify strange white patches and spiraled growths on my lawn?
- 9Why is green growth showing up so fast after seeding?
- 8How do you mow an L-shaped lawn?
- 5Why is my grass getting bright lime green patches?
- 8Why are there unexplained brown spots in my zoysia lawn?
- 25Is my dead lawn patch caused by grubs or fungus?