The use of castor oil granules is the fastest method for getting gophers out of the yard. These granules are not poisonous. Rather, they create an odor that is unpleasant enough to send the gophers looking for friendlier environs.
Putting the granules into a yard spreader and covering the yard is one way to get rid of these pests. For those who have a particular direction in which they want the gophers to go, the best way is to start spreading the granules on the other side of the yard. For example, if the homeowner wants the gophers to move to the east, he should start spreading granules along the west side of the property where the gophers reside. Moving east after a day or two and scattering more, the homeowner drives the gophers progressively further east.
After spreading the granules, the homeowner has the choice of watering them in or letting rain do it. As the dissolution process starts, the granules begin releasing the smell that gophers, and moles, find offensive. The product contains castor oil, corncob granules and soap.
Alternatively, the homeowner can set traps, either fatal or live. Flooding gopher tunnels with water works as well. Smoke bombs and poison peanuts are less effective and are illegal in some states.