Extensive shallow tunnel network in my lawn
I have recently seen an extensive tunnel network develop in my lawn. It started in a small location and within 2 weeks has extended through nearly the entire lawn ( approx. 12000 sq. ft.) There are no mounds. I have not seen any holes to speak of. Lawn grass appears to be slightly raised but sinks significantly when you step on it. What can cause this extensive damage so quickly? How can I get rid of the nasty pest? Please help!!
Livingston County Michigan
It would greatly help our experts respond if you’re able to attach a few photos to this message. Would they be possible?
I took a number of photos this morning. I would like to send more than 3 allowed here to give the full flavor of my issue, so I will post multiple responses.
The first few are the view of the full lawn and select areas of tunneling.
Finally, while I am not sure it is related, I noticed this unusual "debris" (waste matter?) on a portion of the lawn this morning. I have not seen this previously, but the timing seems suspicious. Even though it is not spread over the entire lawn at this point, there is enough that it is very concerning.
Thanks so much for your help with this mystery!