Parasites Are Wiping Out Entire Honeybee Colonies. Threat Magnitude Much Higher Than Previously Expected

Bees around the world are at risk from a number of threats including habitat loss and the effect of pesticides, plus bacterial disease like American foulbrood. Bee colonies are also at risk from mites (especially Varroa mite parasite) and parasites. Although parasites have long been associated with “colony collapse disorder”, where entire hives are wiped out, it is only recently that the magnitude of the threat has been fully realised.
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