A Winter Hive Loss

While honey bees do not fly in cold weather, they do venture out of their hive on the occasional warm winter day. Bees make cleansing flights and forage for nectar and pollen from early-blooming flowers. Observing the bees’ flight at the hive entrances, one hive showed less flight activity than adjacent hives. The warm day allowed for an inspection of the evidently weaker hive, revealing a small population of bees with brood present. However, all of the brood was drone brood, no worker brood. Drones are produced from infertile eggs, and workers are produced from fertile eggs. And colonies typically don’t produce drones in the winter. It appeared that some of the workers had developed working reproductive systems and had become drone layers. Workers typically don’t lay eggs, however when a hive has been queenless for a period of time, some workers start laying infertile eggs. It appeared that the colony was dwindling in population without a queen producing workers.

Looking deeper into the hive, I found the likely cause of the colony’s population decline and drone laying. I found a queen cell with the side wall chewed out. It appears that the colony attempted to replace its queen during the winter through supersedure. Honey bees in the Mid-South can only produce viable queens from April through August. The queen cell shown here has not been opened at the tip where a queen would emerge. Instead, it was chewed out through the side. A virgin queen emerged in the hive, found this developing queen, and stung her to death through the side of the cell. Workers later chewed through the cell wall and removed the remains. Beekeepers need to be on the lookout for wintertime colony losses and take measures to protect the combs. I stacked the frames of this hive atop the frames of a strong hive. Those bees will protect the combs, and a colony division in the spring, when queens become available, will restore the hive count.

--Richard

Mid-Winter Beekeeping

We cannot go deep into our bee hives in the winter, but it is good advice to make a brief inspection of our hives on warm winter days. Breaking hive boxes apart and removing brood frames in cold temperatures risks chilling and killing brood. On warmer days, we can open the hive covers and quickly look inside, simply looking for evidence that the bee colonies are alive and that they have adequate food to survive the remainder of the winter. We may see live bees in a hive as soon as we remove the covers, however the bees may be clustered lower in the hive and not immediately visible. In this case, we can usually determine that we have living bees by removing a frame from the center of the uppermost box to view below. If the colony is dead, we should protect the precious comb-covered frames by stacking them above the frames of a strong hive or placing them in a freezer. We can estimate the amount of stored honey in a hive by lifting the back of our hives an inch with our fingers. Any hives that feel light in weight are likely lacking in stored honey and in need of emergency feeding. As bees are reluctant to consume liquid sugar syrup in cold weather, we may feed bees dry sugar atop the inner covers of the hives. A shim placed between the inner and outer covers allows us to place plenty of sugar on the inner cover.

While existing beekeepers are checking on their overwintering hives, they are also sharing their experience with individuals preparing to start beekeeping. Local beekeeping associations are offering short courses to introduce people to the art and skill of beekeeping. The Ozark Foothills Beekeepers Association held two sessions of its Beekeeping 101 class, and is preparing for a Beekeeping 201 class to be followed in the summer by a class on harvesting and processing honey. An exceptionally large honey bee visited the class.

--Richard