Controlling Rodents Naturally http://gardening-ahmad.blogspot.com/

There are hills and canyons in and around Los Angeles where gophers are such an enormous problem that gardening is virtually impossible. In parts of Santa Clarita and the Antelope Valley, the only way to plant is to sink a fine mesh fence, to a two foot depth, around your garden. If you want to plant a small tree, a similar fence around the drip line or canopy diameter is needed to prevent gophers from chewing the tree's roots and, in some cases, from gnawing through its trunk.None of the conventional gopher control techniques have been embraced by the general public. Trapping definitely works, but it is accompanied by the never pleasant task of extracting the dead animal from the trap's skewers that pierce it on both sides. You might choose to dispose of the trap (a $6 item) along with the dead gopher, but this will only mean purchasing another trap later on when other gophers reclaim the area, which they always do. Smoldering sulfur sticks, inserted into gopher burrows, are sometimes effective at asphyxiating gophers; with this method, you don't have to worry about retrieving the dead animal. However, unlike with traps, there is no certainty that the sulfur sticks have worked. Oats laced with strychnine are the most popular poison bait, except that lots of people don't like handling noxious chemicals and, again, you can never be sure if the gopher got away.

http://gardening-ahmad.blogspot.com/