At this time of year you should be concerned about two things - mites and nutrition.
Treatments should have been applied if you had higher than normal levels of mites in you hive. It never hurts to recheck the colony once the treatments have been removed. Don’t always assume your treatment was effective. The Varroa Mite can build a resistance to some treatments if you use it year after year. Monitor your infestation levels and alternate with different medications if you find your treatment was ineffective.
It's no surprise; nutrition can either help or hinder a colony. If the colony is diseased, poor nutrition can amplify the symptoms, but good nutrition can be the elixir needed to get them through. This time of year, nectar is scarce or non-existent. Bees will forage for what is out there but beekeepers need to provide a food source to prevent starving in the hive. Be sure the bees have ample honey or syrup stored and protein!
Now is the time to prepare your feeder for the sugar water mixture or corn syrup you will be providing. Honey bees require proteins, carbohydrates, lipids, vitamins, minerals, and water. Larvae and queens are fed a diet of royal jelly secreted by young nurse bees’ hypo pharyngeal glands. This milky white acidic substance has a high moisture content and is very rich in proteins, lipids, B vitamins, C vitamins, sugars, and minerals that are not fully found in sugar water or corn syrup. There are several nutritional supplements which incorporate these needed nutrients to maintain a healthy colony. Here are some mixtures for your feed:
Acolonies health is as essential for winter survival as are the food stores they will need to survive. Providing the necessary feed the will need along with a good supplement will go a long way to keep your hive healthy and strong.