Border Crackdown, Higher Wages Elsewhere Means Farm-Worker Shortage BATESVILLE, Texas (AP) -- J. Allen Carnes needed 200 workers for the onion harvest this year on 500 acres of South Texas fields. The onion business is big in the area, and with only two months to harvest, there's little room for delay. But Carnes ended up with less than 100 workers and fell two weeks behind, with bits and pieces of the fields unpicked. His income fell about $150,000, a significant loss. "It's become increasingly tight over the last three or four years," said Carnes, president of Winter Garden Produce in...