This page had a fairly interesting DIY idea for killing gophers: running a hose from the exhaust pipe of your car into the tunnels and flooding them with carbon monoxide from the exhaust:
http://ag.arizona.edu/urbanipm/roden...etgophers.html
To quote:
Quote:
|
Because of its greater volume and pressure, carbon monoxide from gasoline engine exhaust can be more effective than other fumigants. A vacuum cleaner hose or other types of hose or pipe can be attached to the engine exhaust and placed in a burrow near a fresh mound. Soil should then be packed around the hose or pipe and the engine run for several minutes. This method can be very effective. Newer vehicle engines with anti-pollution devices produce less carbon monoxide and may need to be run for a longer period.
|
There are also those service that vacuum prairie dogs out of the ground into a big tank truck -- it's considered humane because few dogs die. But for some reason I've never heard of them doing it for gophers.[