My preferred method for getting rid of groundhogs is to pour ammonia down their tunnel; they will immediately stop using it. I haven't seen a single groundhog after using this technique.

12 Methods to Get Rid of Groundhogs in Your Yard Here are 12 effective ways to get rid of the groundhogs plaguing your yard. I'll discuss each one in more detail below.

Researchers Friday hoped the Groundhog would emerge from another portal with such a map. Instead, it produced a two-dimensional one showing about 275 yards of tunnel, including images of an ...