A big problem, for example, is the varroa mite, a deadly parasite.

例如，最大的问题就是瓦螨—一种致死性寄生虫。

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Last year more than 30% of honeybees died from disease, mainly varroa mite.

去年有超过30%的蜜蜂死于疾病，其中大部分由蜂螨造成。

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Meanwhile, the bloodsucking Varroa mite (red dots above), also implicated in CCD, remains honeybees’ most devastating pest worldwide.

同时，吸血的瓦螨（上图中的红点）与蜂群衰竭失调病亦存在牵连，它一直是蜜蜂世界中最具毁灭性的昆虫。

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The varroa mite is endemic throughout both feral and cultivated honey-bee colonies.

BBC: Honey-bees found to have bite that stuns

The Israeli acute paralysis virus (and, perhaps, the mystery virus) may have had such a devastating effect there because of the presence of a parasite called the varroa mite.

ECONOMIST: A virus may help explain colony collapse disorder

To investigate, scientists looked at two common pesticides: neonicotinoids, which are used to control pests on oil seed rape and other crops, and a group of organophosphate chemicals called coumaphos, which are used to kill the Varroa mite, a parasite that attacks the honey bee.

BBC: Neonicotinoid pesticides 'damage brains of bees'