How do honey bees survive winter




















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 within the cluster. The cluster consumes honey and shivers 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 small amounts of brood shortly after winter solstice December 21 or 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.

The diameter of the winter cluster is around 14 inches at 57 f degrees, but 10 inches at 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 wing 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. Why do we not see honey bees outside on cold days? Well, there would be very little food available for them to harvest. And, these cold blooded insects will die if they become chilled. Honey bee colonies do not hibernate. They stay inside warm inside the hive on cold days consuming stored honey to survive.

However, they are not in a hibernation stupor. Worker bees inside the Winter hive are different. They live longer than those born in Summer. But, eventually even these winter bees will reach the end of their life span.

As, the queen bee begins to lay eggs in late winter, the colony starts working toward population buildup. The replacements for the older dying members, prepares the colony for Spring growth. Winter is primarily a time of waiting for the honey bee colony. Once warm weather arrives, the race is on to collect food needed by the hive. But, because a honey bee colony survives winter without going into true hibernation, they may fly on warm days.

You may see them collecting pollen or nectar if any is available. It is interesting to note that some honey bees fly on much colder days. Yet, others in the same location stay inside the hive. Why would this happen? Genetics plays a role in cool weather flight. How cold is too cold for bees? Bumble bees can fly at slightly colder temperatures. Bee colonies are able to survive the cold Winter temperatures because of two management techniques.

With these conditions in place, a healthy colony will live to see Spring. Yes, honey bees generate heat but they need enough members to get the job done. Can you imagine tiny space heaters inside the bee hive in winter? They cluster tightly together inside the hive. If the hive has brood , the cluster forms around the brood nest.

This cluster must stay in constant contact with honey. Honey located several frames away is no good — some members of the cluster must be able to reach food. This is why sometimes even a colony with abundant stores can still starve. If prolonged cold weather causes the cluster to fail to move — the colony may still die with honey just a few frames away! Honey bees fly using special muscles to move their wings.

These muscles move in a circular fashion that make bee flight possible. When inside the hive, they are able to unhook their wings but still flex those muscles. Similar to you holding your foot on the car brake and racing the engine. This muscle flexing generates heat. When you combine a lot of individuals doing this, heat generated can prevent the colony from perishing on a cold day. But, they must consume a lot of honey to continue this activity. Heat production becomes even more important in very early Spring.

These babies bee brood must be maintained at a warm temperature for development to occur. A heater bee which can be any worker will sit on top of a honeycomb cell containing young. She will vibrate her abdomen and flex her wing muscles to generate heat.

Also, heater bees can go inside an empty cell and generate heat. This warms the brood on each side of the cell. This ingenious system does have its limits. Bitter cold may kill a colony that does not have a population large enough to generate life sustaining heat during a cold snap. Beekeepers who increase their hive numbers by making hive splits early in the year must keep this need in mind.

Winter beekeeping is more about preparation for winter during Fall — than actual Winter work. The heater bees must have food and a lot of it.

Supplemental feeding in the Fall is common if the hive is not ready for Winter. Colonies that have enough honey stored do not need assistance.

Repeat after me. I must not open my bee hives in winter cold. Unless you are an experienced beekeeper with a darn good reason. Some beekeepers purchase a thermal imaging camera.

This lets the beekeeper know that the colony is still alive and how big the cluster population might be. I have used one of these cameras and it is great fun! Alas, I do not own one — but… maybe someday. Beekeepers in northern parts of the country face greater challenges. The winters are colder and longer. These beekeepers use a special bee hive winter wrap to insulate bee colonies. Sometimes, wrapping causes problems because the bee colony stays too warm without proper ventilation.

Beehive ventilation is very important to the colony. You can wrap them up too tight and cause your bee colony to die! It is inadvisable to heat the hive with lights, heaters etc. She will certainly not make it back to the hive. In the insect world, there are many different species and each one has developed a plan to carry their genetics into the next season. Perhaps, it is a bee that depends on the mated queen for the next generation. Or like the honey bees, keeps a family intact from Fall to Spring.

The plan has been going on for millions of years-it works most of the time. Unfortunately, our bee colonies today are not as healthy as they were years ago. This lack of vigor and influx of new diseases and pests has taken a toil on winter survival rates. We also see fewer of other bee species making it through the cold season. An especially large and thriving colony can produce up to 90 pounds of honey.

In other words, worker bees spend much of their lives producing a honey surplus. Beekeepers harvest this surplus, making sure they leave the bees enough of this precious substance so they can survive the winter. While most of us love honey and recognize the role that honey bees play in pollinating many of the plant foods consumed by humans, no one really wants a hive of bees around or inside their house. Mosquito sprays claim to help protect your yard and your family from the threat of mosquitoes.

Homeowners are able to use products like hose-end sprayers, aerosols or foggers to treat their property and use them in and around mosquito resting sites, like tall grass, flower beds and standing water. But does mosquito spray work? And are DIY sprays just as effective as professional treatments?

If you've found drywood termites in your home, and all other treatments have failed, you may want to look into having your home fumigated. Although Terminix does not perform fumigations, we do work with subcontractors that are knowledgeable about fumigation best practices, if your home is in need of such a service.

Bed bugs are travelers. Before moving into your mattress or settling down in your nightstand, they may have lived in a hotel, office, school or other place where people gather. Because bed bugs can attach themselves to clothes, furniture, luggage and even your pets, they can also hitch a ride in your car, rental vehicle, taxi or rideshare. This gives them easy access to anything you transport with you and a free ride to everywhere you go, including your home.

But there's a reason why this saying is so old and so well known: bed bugs have been around for a very long time. These pesky insects have recently seen a resurgence in population and now, it's more likely than ever that you or someone you know will eventually deal with some kind of bed bug infestation.



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