Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Colony collapse disorder is a global phenomenon characterized by a massive die-off of bees, particularly across North America and Europe. First recorded in the mid 2000s, it was linked to neonicotinoid pesticides – a relatively less-toxic substitute for earlier pesticides. Recently, a new study showed a connection between bee-colony collapse and imidacloprid insecticide, a class of neonicotinoids found in the bees’ dietary supplements, such as high-fructose corn syrup. Learn more about the colony collapse disorder, its history and causes in this book.