Dave wrote:
We have been at this location for 9 years with no previous problems.
This year we re-seeded in late September and now have discovered
overnight two large areas of extensive disturbance to the turf. I
first suspected moles or voles, but on closer examination I see a
large number of small pieces of turf that have been scuffed aside,
but there are no tunnels beneath them. It looks like a large-ish
animal, like a big dog or something, has torn up the lawn. But there
are no footprints, and there is no sign of claw marks (the soil is
soft and damp), and there is no history of dogs running loose in the
area. I have no idea what is causing this, but the damage is
extensive and I don't know how to control it. We have a new puppy, so
poison is out of the question. If anybody has any ideas I'd
appreciate hearing them.
Thanks
Dave

Racoons lifting the sod to get to the grubs infesting it?