Reuters: Argentina's main agricultural province of Buenos Aires is restricting the use of pesticides near cities, a measure meant to protect citizens' health that will raise costs for farmers in the world's No. 3 soy and corn supplier. The agreement was negotiated with farmers, who expect to be compensated for higher costs. Farmers have a contentious relationship with Argentina's federal government and say their profits have been whittled down to nearly nothing by high taxes and export curbs on corn and...