05/18/2012 08:38 am ET Updated Jul 18, 2012

Immigration Stalls As Opportunities Wane On U.S.-Mexican Border

As the economy boomed in the mid- 2000s, many immigrants in southern California's border country spurned field work in favor of construction and food-service jobs. Then they stopped coming to U.S. farms altogether.

So Larry Cox, who farms lettuce, cantaloupes and onions on 3,500 acres in Imperial County, California, shifted more production south of the border, where the Mexicali Valley offers a plentiful agricultural workforce, Cox, 53, said in an interview.

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