Even though honey bee pests and pathogens draw beekeepers’
attention, the greatest killer of honey bee colonies has always been
starvation. American foulbrood is dreaded because the bacterial brood disease
is so easily spread, and its reproductive spores are extremely resilient.
Parasitic mites have a history of decimating honey bee colonies since their
arrival in the mid-1980s. The Varroa mite adds to the weakening of colonies by
vectoring numerous honey bee viruses. The most recent strain of Nosema disease
also weakens colonies, particularly when combined with other pathogens.
Chemicals used inside bee hives to fight honey bee diseases and parasitic mites
as well as environmental pesticides, herbicides, and fungicides combine with deadly
toxic effects on honey bees.
A mild winter may, surprisingly, bring more honey
bee colony losses than a cold winter. More managed honey bee colonies are lost
each year to starvation than to any honey bee disease. It’s the middle of the
winter, but the Mid-South has not experienced exceptionally cold weather. The
mild temperatures have actually placed a considerable strain on honey bee food
stores. On a number of days the weather has been warm enough for the bees to
fly from their hives. The bees expended more energy searching for food than
they would have consumed had they remained clustered in the hive under colder
conditions. Any feeding of honey bees in the winter is considered emergency
feeding. At this time of the year, feeding dry sugar is usually preferred. Granulated
sugar can be placed on a sheet of newspaper atop the top bars of hive frames
holding the winter cluster of bees. Sprinkling the sugar with a very small
amount of water holds the sugar in place. Another simple method of applying
emergency food involves pouring granulated sugar atop the hive’s inner cover as
in today’s photo. The bees access the sugar through the center hole in the
inner cover when the hive is warm enough for bees to break out of their winter
cluster.
--Richard
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--Richard