Gassing the burrows with aluminum phosphide is also effective, again this is best done by a professional. You can't do this near buildings because of the danger of the fumigant leaking into buildings, and you can't do this when they're hibernating because they seal up their burrows making the fumigation methods less successful. Check with the local extension agent as to what you can do your self. Hope this helps. First, you must properly identify the type of pest.
Traps are labor-intensive and only good for limited infestations.
Ground squirrels do not like tall grass. So if vegetation is allowed to establish itself, the ground squirrels will tend to leave. You must check local laws to see which types are allowed. Sometimes this is best done by the professional since strychnine baits are often used. Gassing the burrows with aluminum phosphide is also effective, again this is best done by a professional.