Just one question..........are there really grubs there? This may sound like an obvious question, but I have seen damage of this kind without grubs being present. Sometimes they dig where it is easiest to dig. Sometimes they dig in what is VERY healthy soil for worms. Sometimes it is other insects in the turf and not grubs. Why the front and not the back..........? You answered the question, it is the back that backs up to woods. The front is the FRONT. That usually means street side, more people, etc.
Glorified Ditch Digger
....but still a bargain compared to anything else.
And I NEVER say I told you so out loud.
How many Hats can you wear?