Lesson 90: Winter Tips

Hello friends, we’re David & Sheri Burns from Long Lane Honey Bee Farms in central Illinois. Our bees are tucked away for winter, nothing more can be done except to replace candy boards as needed.
In less than 100 days, in Illinois the bee season begins and bees will be working early spring plants gearing up for another beekeeping season.
Over the next few days we’ll be welcoming in another year. I’m excited. Good things are going to get better for all of us.
Sheri and I have 3 girls and 3 boys, and over the Christmas Holiday I enjoyed taking my three daughters out to eat and it was so fun just listening to them talk and share their life experiences.

And let me encourage you to follow along my wife’s blog. She enjoys telling about what’s going on around the honey bee farm and at home. We have lots of fun, and Sheri recently shared about some exciting things coming up for 2011. Sheri’s Sweet Life

In today’s lesson I want to share about what bees do in the winter and what you can do to add to your bees’ survival. And I’ll be sharing a series of lessons on top bar hives (TBH) starting in Lesson 91, our lesson after this one.
 
LESSSON 90: What Bees Do In The Winter
Depending on how cold it gets where you live, bees form a tight cluster to survive the winter. Here in Illinois it gets really cold. And this time of the year, it’s too cold to inspect our colonies. We can open them just for a minute to replace candy boards but for the most part the bees are on their own until late February.
Cold does not kill a healthy, populous colony. Usually beekeepers lose colonies during the winter from varroa mites, tracheal mites, nosema, pesticide build up in stored pollen or starvation.
So many beekeepers ask me what they can do to help their bees survive the winter. I’ve worked up an easy to remember acronym WINTERS:
Wipe out pest & diseases
Initiate protection against extreme climate conditions
New queen
Top Ventilation
Excluders and empty combs off
Restrict Opening to keep out mice
Sufficient Pollen & Honey
How does the typical hive overwinter?  Bees make no effort to heat the inside of their hive like we heat our homes. We like every room to be warm. Bees, however, only produce heat from within the cluster. The cluster consumes honey and shiver to produce heat.
Bees begin to cluster when the outside temperature reaches 57 (f). Temperature of the outer surface of the winter cluster is just over 40 (f).
Within the center of the winter cluster the temperature is around 93 (f).
Never inspect a frame outside the hive until the temperature reaches 65 (f).
Colonies in the Midwest and north need around 4 frames of pollen for the winter, along with 60 pounds of honey.
Typically in northern climates the queen will stop laying in November through December but will start laying again shortly after winter solstice (December 21 or 22).
Winter bees have larger hypopharyngeal glands and more fat body reserves.
Bees can die in the winter if they become too filled with waste and cannot fly out and defecate.
Bees keep their humidity level at 40-50% in the summer hive and in the winter cluster.
The diameter of the winter cluster is around 14 inches at 57 (f) degrees, but 10 inches at -14 (f)
An outside temperature of 45 (f) degrees is most optimal for efficient use of stored resources.
A winter cluster is made up of an outside shell of bees around 3 inches thick that is very compressed. The bees heads are facing inward.
Within the center of the winter cluster, bees are less compressed and move around caring for brood.
Bees vibrate their flight muscles to generate heat for the winter cluster.
Normally a colony forms a winter cluster below their stored honey and gradually move up near the available honey as winter progresses.
Smaller winter clusters consume more resources per bee than larger clusters.
Bees can identify temperature differences as small as 0.45 (f).
Very small clusters cannot survive temperatures 45 (f) and below.
The winter cluster prefers dark comb and usually avoids new comb.
Varroa mites, small hive beetles and trachea mites also survive within the warmth of the winter cluster.
Here’s some winter tips:
Never remove frames for inspection unless the temperature is at least 65 degrees.
Aster is not a good overwintering honey because it crystalizes fast and the bees rarely ripen it prior to winter. Crystallized honey in the winter can give the bees dysentery because it produces liquid as it separates and the bees are unable to take the cleansing flights they need.
Never give bees molasses, brown sugar or corn syrup as these contain complex carbohydrates and other compounds which the bees are unable to digest.
Bees prefer to overwinter on foundation that has been used in brood rearing and will rarely move onto new comb.
Here in the Midwest colonies need between 60-80 pounds of stored honey. Here are the weights of frames filled with honey:
DEEP FRAME         6 lbs
MEDIUM FRAME     3 lbs
SHALLOW FRAME  2.5 lbs
Colonies need 4 frames of pollen for winter.
In our next lesson, we will be rolling out a lesson on Top Bar Hives and we’ll be rolling out our own design for the Top Bar Hives that we are not producing in addition to our regular traditional Langstroth hives.
Here’s our contact info:
LONG LANE HONEY BEE FARMS www.honeybeesonline.com
14556 N 1020 E. Rd
Fairmount, IL 61841
217-427-2678
EMAIL: david@honeybeesonline.com
Follow us on Twitter at: http://twitter.com/longlanehoney
Sign up to receive our daily beekeeping newsletter at: http://www.honeybeesonline.com/ez.html
Follow our podcasts on iTunes at: http://itunes.apple.com/us/podcast/studio-bee-live/id400801201
Or listen online at: www.honeybeesonline.com/studiobeelive.html
Until next time, BEE-Have Yourself!

Happy New Year,
David & Sheri Burns