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Honey bee pests and diseases

What you need to know about pests and diseases that can affect managed honey bee health in Ontario.

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    Pests

    Northern giant hornet

    Northern giant hornet

    An invasive predator of honey bees.

    Small hive beetle

    Small hive beetle

    A pest of honey bees capable of damaging and stressing colonies.

    Varroa mites

    Varroa mites

    A common and very serious pest of honey bees in Ontario.

    Diseases

    American foulbrood

    American foulbrood

    A serious brood disease of honey bees.

    European foulbrood

    European foulbrood

    A serious brood disease of honey bees.

    Updated: March 30, 2023
    Published: May 13, 2022

    Ministry of Agriculture, Food and Rural Affairs

    Unleashing the potential of Ontario's rural, agriculture and food systems by developing vibrant rural economies, making sure our agriculture is sustainable, and supporting the growth of our agri-food system.

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