Hello /bant/

Today is the day I declare war on these fuckers. These cunts live on my 1.5 acre property and are constantly digging their gay holes in my lawn and gardens. I am done with them. There must be hundreds of holes, even more tunnels, and thousands of chipmunks on this property.

What is the best way to get rid of them?

I am open to both chemical and physical warfare. The Geneva Convention does no longer apply to my acre and a half of land. I need something that won't get me killed, arrested, or fined and something doable. I have a pellet gun, but I simply can't kill them all with that. There's too many.

Help me, /bant/. You're my only hope.