'Amber waves of grain' recede in America's heartland as wheat farmers struggle

COLBY, Kansas (Reuters) -On a foggy morning in May, Dennis Schoenhals drove a carload of crop scouts around the wheat fields of northern Oklahoma, part of an annual tour to evaluate the health of the crop. In Nebraska, wheat acreage is less than half of what it was in 2005. For farmers with crop insurance, damaged or unprofitable wheat fields can still earn revenue.