Grub Plague

I'm quite afraid we're going to have a grub issue. It seems they have more or less infested the region and we're seeing lawns disappearing before our eyes, eaten by grubs. As I was doing all the landscaping work, I kept seeing what I now know are Japanese Beetles - very pretty, but it looks like very dangerous to our lawn. I guess we really have more dandelions than lawn at this point so they can go ahead and eat those if they like but I'm nervous it's going to make our homely lawn even more so.