In addition to the grubs causing damage themselves, their presence tends to attract animals, such as moles, voles, birds, mice, rats, gophers, groundhogs, raccoons and skunks, who love to feed on an active grub population; thus, causing further damage to your lawn. In this particular case, it sounds as if the lawn has been victimized by a skunk; they do just that, cut square patches of sod and roll it back to get to the grub worms.
Was this answer helpful ? Yes / No