Winter Loss Reports

The Winter Loss Reports were being conducted even before BIP was founded, in fact the results of the report were part of the reason BIP was created – to solve the continuing loss of honey bees over the winter. Here, you can find all the winter loss reports dating back to the first one in 2006.


2013-2012: Preliminary survey results indicate that 31.1% of managed honey bee colonies in the United States were lost during the 2012/2013 winter. This represents an increase in loss of 9.2 points or 42% over the previous 2011/2012 winter’s total losses.

2011-2012: In the US, the total colony loss was 22.5% for the 2011-12 winter; 45.1% (n = 2,482) of respondents reported no colony loss. Total loss during 2011-12 was substantially lower than loss during 2010-11 (29.9%).

2010-2011: Survey respondents reported that they had lost an average of 38.4% of their colonies, for a total US colony loss of 29.9% over the winter of 2010-11.

2009-2010: Over the winter of 2009-2010, US beekeepers responding to this survey lost an average of 42.2% of their colonies, for a total loss of 34.4%.

2008-2009: This study records the third consecutive year of high winter losses in managed honey bee colonies in the USA.  Over the winter of 2008-9 an estimated 29 % of all US colonies died.

2007-2008: A total loss of 35.8% of colonies was recorded; an increase of 11.4% compared to last year.

2006-2007: The total loss and average loss of bees in all operations was 31.8% and 37.6%, respectively. Of the surveyed beekeepers, 51.9% reported “abnormally heavy losses”; these beekeepers had a total loss of 55.4%, compared to the 15.9% total loss experienced by beekeepers who reported “normal losses”

One thought on “Winter Loss Reports

  1. The Australian Council for Educational Research would like permission to reproduce the Bee Informed graph ‘Managed Honey bee colony losses in the US’ (2006-2013), in some school test papers.
    I would be grateful if you would provide a contact to which I can send full details of our request.
    Kind regards

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