The largest U.S. farm group threw its weight behind a new immigration law reform on Tuesday to replace the current guest worker program and to put undocumented workers already in the country on a defined path to legal status.

Delegates at the annual meeting of the 6 million-member American Farm Bureau Federation adopted the reform package as national policy. AFBF is among a dozen agricultural and landscape industry groups backing it.

The vote came a day after U.S. Agriculture Secretary Tom Vilsack told Farm Bureau members to speak up for comprehensive immigration reform.

Agriculture has a direct stake in the issue, given its need for a steady and reliable supply of labor to stop certain crops from rotting in the field.

Larry Wooten, president of the North Carolina Farm Bureau, said the Farm Bureau’s goal was “to push Congress to action.”

Immigration reform became a front-burner issue after overwhelming support from Hispanic voters figured in President Barack Obama’s re-election in November.

AFBF president Bob Stallman said some lawmakers “are eager to move ahead” on farm worker reform but, “The reality is we’re only going to solve this through comprehensive immigration reform.”

The White House was expected to propose a wide-ranging package early this year, including a guest worker program and a path to citizenship for undocumented workers.