I had a Richardson ground squirrel/pocket gopher/rodent/vole problem on my farm, especially around the garden and fruit trees. Then I found about the propane gophinator, injects propane and oxygen down the tunnel, spark the igniter and it evacuates the oxygen and collapses the tunnel all in one moment. You will have to check local regulations if you are allowed to use it in an urban area, but on the farm we have a bit more leeway. Word of caution, stand off to the side of the tunnel opening with your back towards it, because little rocks and clumps of soil may be projected out of the tunnel from the blast. Can honestly say I enjoyed watching, seeing, and feeling each blast every time lol
