Chipmunks
Chipmunk is the common name for any small ground dwelling squirrel-like rodent species. They are found in eastern portions of Canada and the United States. Though chipmunks are commonly depicted with their paws up to the mouth, eating peanuts, or more famously their cheeks bulging out on either side, they eat a much more diverse range of foods than just nuts.
Since chipmunks live in the same burrow for several years they are vulnerable to killing them with gas. You can try fumigating the Chipmunks first. Injecting poisonous smoke into the tunnels may kill the pests where they sit or drive them out to be killed on the surface. In either case, the smoke will reveal all the tunnel exits, when you can seal off quickly.
The Exhaust Method: This requires a gasoline powered mower or tiller. Obtain a length of flexible metal exhaust hose from an auto supply store. Make sure it is of sufficient diameter to fit your motor’s exhaust pipe. Start your motor. Expose a main tunnel and insert one end of the hose into it, then tamp soil around it to seal it. Then apply a few drops of oil just inside the other end, put on gloves, and affix this to the motor’s hot exhaust pipe. Allow the motor to idle for 15 to 30 minutes. Quickly seal any tunnel openings that allow smoke to escape. The carbon monoxide should kill any Chipmunks trapped below.
The Flare Method: A simpler method is to open the tunnel and shove a lighted highway flare into the hole, then seal all the entrances as above. The noxious sulfur fumes will drive the Chipmunks into the open, where they can be killed with a shovel.
Commercial gas cartridges or “bombs” are also available Some of these are toxic, some are not. Read the package labels carefully. Some of these fumigants, such as highly toxic aluminum phosphide, are best left to professional pest control experts. In any case, never fumigate soil in areas that lie close to occupied buildings, as the poisonous gases may seep into the basement or crawl spaces.
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