How do Varroa mites contribute to colony collapse for honey bees?



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    Being external parasites, Varroa Mites cling to the bee’s abdomen or thorax, living off its blood, weakening the bee. Female mites lay their eggs in the cells where bee larva are stored and the mites hatch before the bees are fully developed. They then begin by feeding on the brood, or younger undeveloped bees, causing malformations and spreading viruses. This, coupled with a 10-day reproduction cycle, increases the death rate of the colony while hindering the birth rate at the same time, making Varroa Destructor mites one of the biggest threats to bee colonies in the world.

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