Buy yourself a bag with individually wrapped pieces of bubble gum. Put on clean disposable rubber gloves. Open the bag of bubble gum and remove the wrapper from 6-8 pieces of gum and throw them in and around the hole(s). Then dump 10-15 pieces of wrapped buble gum in and around the holes. The groundhogs will eat the gum. It plugs up their intestines and they will die. They may stink for a bit when they die in their holes. Cover the holes for a while to stop the smell for a couple weeks.

Last edited by carlm; 08/21/17.