Colony Collapse Disorder
Since honeybees started dying off in frightening amounts around 2006, there has been much discussion over just what the culprit of Colony Collapse Disorder (CCD) is, and a recent report released by the USDA sheds little new light on the subject. There exists no single smoking gun in relation to CCD, but many probable causes.
Researchers have looked to parasitic mites found in abandoned colonies (the Varroa mite), any number of different viruses, colder winters, bacterial disease, as well as many different pesticides used on crops to explain the phenomenon. However, they have yet to uncover how these scenarios are working in conjunction with each other to rapidly wipe out the American honeybee population. The following chart deals with the particular neonicotinoid based pesticides and the Varroa mite, and how they relate to honeybee populations worldwide.