I never even thought of skunks. I only suspected raccoon because one showed up the afternoon.
Skunk or raccoon, its destroying thousand oof dollars of lawn. A friend suggested laying poison food in lawn but I would hate if a cat or bird ate it.
Monoculture is a bad plan, as you're finding out. But they're not destroying your lawn; it still growing, and the torn bits will re-establish if you put them back. They're just making a bit more work for you. If you don't appreciate that why did you set-up your bluegrass grub ranch in raccoon territory anyway?
Nothing in nature is easy if you want it to happen your way and can't compromise. Less grass and more varieties of plantings will make your spread less homey for the grubs and less attractive to the 'coons.
If you've sodded and made roll-back access easy, you're going to have to peg down the sod until it roots into the topsoil. The plastic mesh fence from the lumberstore accomplishes that easily, and you can mow over it without danger. But it can be a bugger to get up in the fall.
Once the kits can manage on their own, trapping isn't hard and Toronto has lotsa wild spots that still don't amount to distant re-location. It's up to you how you face down the locals who may object, and only a matter of time before the ones you didn't trap find the competition free-range grubs feeding on your lawn.
Spare a moment to thank Ms. Coon for all the pest-control she provided while you plot to protect your grubs from her..