Greg from Portland, Oregon writes,
Rats under concrete slab
Rats have burrowed under a concrete patio slab in my back yard. Can Giant Destroyer be used to kill the rats. Clearance to combustibles is not a problem.
If the patio slab is not connected to the house slab you can use a Giant Destroyer to help eliminate the rat. If there are many tunnels or if it is in an area where you cannot seal up the entrances you may want to consider using rat poison baits instead such as Fastrac or Contrac.
Answer last updated on: 12/15/2011