Drought hits US corn growers10/08/2012 - 17:49:24
US corn growers could have their worst crop in a generation as the harshest drought in decades takes its toll.
The government has forecast the lowest average yield in 17 years.
The US is the world's biggest producer of corn, soybeans and wheat.
The United Nations has warned of higher global food prices as the dry spell withers farms across the Midwest.