Varroa Management

Allow me to start with an excellent assessment by Bee Culture’s Phil Craft (BC July 2015):

Perhaps beekeepers who have come to the craft in the last few decades aren’t aware of the effect varroa had when it first arrived on this continent and of how it earned its full name, Varroa destructor. Whatever the reason, every year, beekeepers all over the country lose colonies to mites and the viruses of which they are carriers, and they never know what hit them. They blame pesticides,or CCD, or habitat loss, and sometimes those really are causes, or at least significant factors. However, too, too often, the underlying cause is a lack of effective management, which allows a mite infestation to overwhelm a colony or weaken it to the point that it succumbs easily to other stressors. The most frustrating thing about these losses is that they don’t have to happen.

Watch Dennis vanEngelsdorp explain why mite management is critical for colony survival, and which methods work or don’t at

Powdered sugar dusting – sweet and safe, but does it really work? Part 1

By Randy Oliver The dusting of colonies with powdered sugar as a means of varroa control has become quite popular with hobbyists. Unfortunately, there is precious little published data in support of its actual efficacy in the field. So we here at Still-on-the-Learning-Curve Apiaries decided to put it to the test. Author’s note: My readers […]

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Trial of HoneySuperCell® Small Cell Combs

Randy Oliver Introduction There has been considerable discussion as to whether “small cell” foundation (4.9mm diameter vs. the industry “standard” of approximately 5.4mm) has potential as a means of controlling varroa reproduction.  Research on Africanized bees in South America indicates that small cell size may reduce mite reproduction, yet data from South Africa and Europe […]

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Miticides 2011

First published in: American Bee Journal February 2011

Colony health and production these days is largely a function of varroa levels in the hives—the more mites, the more problems. It is no longer a matter of simply knocking the mites back once a year with a “silver bullet”—it is becoming increasingly clear that mite levels must be kept low all season. Here is […]

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