Mite-A-Thon is a national effort to collect mite infestation data and to visualize varroa infestations in honey bee colonies across North America within a one week window. 

From the Pollinator Partnership Announcement:

All beekeepers will be asked to participate, creating a rich distribution of sampling sites in Canada, the United States, and Mexico.  Their varroa monitoring data will be uploaded to

The parasitic mite, Varroa destructor (varroa), and the viruses it vectors is a significant driver of this honey bee colony mortality. Yet, indicators suggest that many beekeepers are not monitoring honey bee colony varroa infestations and therefore not able to connect infestation to colony loss. 

OBJECTIVE:          To raise awareness about honey bee colony varroa infestations in North America through effective monitoring methods. 2.  Management strategies will be made available for discussion within bee organizations utilizing Mite-A-Thon partner developed information and outreach materials.

DATE:          The week of September 9, 2017, with a practice test during summer 2017

PARTICIPANTS:          All beekeepers are encouraged to participate

COST:          There is no cost.  You can create your own test materials or kits can be purchased online. Some scholarships are available ( 

OUTREACH:          Promotion of Mite-A-Thon will be through local bee clubs, state beekeeping organizations, and national associations (see partners for examples)

DATA COLLECTION:          Participants will monitor the level of mites (number of mites per 100 bees) using a standardized protocol utilizing two common methods of assessment (powdered sugar roll or alcohol wash) and then enter data, including location, total number of hives, number of hives tested, local habitat, and the number of varroa mites counted from each hive.  The published information will not identify individual participants.

Philadelphia Beekeepers Guild © 2015-2016
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