My lawn is eaten away by something (insect/pesticides). Small soil heaps are formed after watering my lawn. Also, little holes in the ground. I could not detect any insect or ant. Please help.
Certified GKH Gardening Expert
I would not rule our rodents as a possible problem.
If this is killing your lawn you may want to bring in a professional to examine the damage.
Here are some links that may help you pinpoint the issue.