According to the NY Times, 40-50 percent of the honey bee hives needed to pollinate our fruit and vegetable crops have collapsed this year.

The suspected culprit: a new pesticide engineered into plants themselves.

More info: http://www.nytimes.com/2013/03/29/science/earth/soaring-bee-deaths-in-2012-sound-alarm-on-malady.html?pagewanted=all