Sweeping immigration legislation taking shape in the Senate will aim to overhaul the nation’s agriculture worker program to create a steady supply of labor for farmers and growers, who rely more than any other industry on workers who are living in the country illegally. Mike Giles of the Georgia Poultry Federation in Gainesville said the agriculture worker program probably wouldn’t apply to most of the poultry industry in North Georgia. “The agricultural worker category being considered in the immigration reform debate is for laborers on farms and ranches,” Giles said.