In 2006, beekeepers first began to notice the disappearance of their honeybees. Seemingly healthy bees were simply abandoning their hives. Researchers call the mass disappearance Colony Collapse Disorder, and they estimate that nearly one-third of all honey bee colonies in the country have vanished. Bees pollinate roughly $15 billion worth of crops in the United States. The U.S.D.A. has dedicated only a small portion of that amount, $20 million, over the next five years for research.