Alarm spread through California agricultural centers Tuesday as panicked workers reported that federal immigration authorities were showing up at farm fields and packing houses from the Central Coast to the San Joaquin Valley.

Jacob Vasquez began working at a clothing warehouse in Los Angeles soon after arriving from Mexico less than three years ago.

A study from the University Colorado Denver estimated that for every 1 million workers deported, 88,000 U.S. native workers lost employment. With fewer workers, businesses have a harder time investing in expansion, and there are fewer consumers in the economy.