October Bee Lab Varroa and Nosema Results

The Maryland lab has been very busy this past month! We temporarily relocated our sample processing while our lab undergoes a remodel. This remodel will permit us to process a larger number of samples.

For the month of October (10/2-10/29/14), numerous samples were processed in the Maryland Bee lab.  The lab examined 1448 varroa and 1327 nosema samples overall. This resulted in an increase of 600 (71%) varroa and 540 (69%) nosema samples over the previous month. September 2013 was our busiest month last year, but October 2014 has surpassed that.

The average value for nosema spores for California, Minnesota, and Oregon were relatively close, at 0.355, 0.25, 0.1 million spores per bee respectively. Minnesota’s mite average was higher at 2.39 varroa per 100 bees. Yet, California and Oregon were both under 1.40 mites/100 bees.

Number of Nosema Samples October 2014

Graph 1. Number of nosema samples processed.

Average Nosema Spores Per Bee October 2014

Graph 2. Millions of Nosema spores/bee average.








Number of Varroa Samples October 2014

Graph 3. Number of varroa samples processed

Average Mites per 100 bees October 2014

Graph 4. Varroa/100 bees average


Written By: Heather Eversole

Heather Eversole has written 22 post in this blog.

As a Faculty Research Assistant, I am a part of the Bee Diagnostic team located at the University of Maryland, College Park. I process samples for the Bee Informed Partnership and APHIS National Honey Bee Survey, primarily seeking out the parasitic mite, Varroa. I wear many hats including generating reports, managing lab functions as well as assisting undergraduates with honey bee related projects. Prior to my honey bee research interests I took part in submerged aquatic vegetation research projects located on the Chesapeake Bay as well as field work involving mangroves in Belize and Florida. You might say I was “stung” by honey bees and now I am hooked. I have my bachelor’s degree in Ecology and Evolutionary Biology from the University of Maryland and always eager to expand my entomology knowledge.


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