Fall Feeding: Amounts, Timing, and the Right Method

Fall feeding is one of the most important tasks in the beekeeping year. After you've harvested the honey, your bees need a replacement for the winter stores you've removed. How much food does a colony need? When is the right time? And which feeding method works best? This article answers all questions about fall feeding -- with concrete numbers, a clear schedule, and practical tips.

Why Do Bees Need to Be Fed?

In nature, bees build up honey reserves that carry them through winter. As a beekeeper, you remove a portion of these reserves -- the honey. That's the deal: you care for the bees, they produce more honey than they need, and you harvest the surplus.

But after the harvest, the colony is missing a significant portion of its winter food. Without feeding, the colony would starve in winter. You replace the removed honey with sugar syrup or invert sugar syrup. The bees process this sugar just like nectar and store it as winter reserves.

How Much Food Does a Colony Need?

The required amount depends on several factors: hive size, colony strength, region, and winter length. Here are the guidelines:

Conversion sugar to winter stores: 1 kilogram of sugar in 3:2 solution yields approximately 1 kilogram of stored winter food after processing by the bees. This means: if you need to feed 15 kg, you need 15 kg of sugar dissolved in 10 liters of water.

How Do I Determine the Current Food Level?

1. 1

   Weighing (Most Accurate Method)

   Weigh the hive after the harvest. Subtract the empty weight of the hive (wood, combs, bees ~ 15-20 kg for DNM). The remainder is food reserves. A hive scale makes this especially easy -- you see the weight change in real-time.

2. 2

   Lifting (Practical Method)

   Lift the hive from the back. With some experience, you can feel whether the colony is heavy (well supplied) or light (food shortage). This method is imprecise but quick and requires no tools.

3. 3

   Comb Inspection (Direct Method)

   Pull individual edge combs and check the food level. A fully capped food comb weighs about 2 to 2.5 kg (DNM) or 3 to 3.5 kg (Zander/Dadant). Count the food combs and multiply.

Mixing Sugar Syrup Correctly

The standard solution for autumn feeding is sugar syrup 3:2 (3 parts sugar, 2 parts water by weight):

Recipe: 10 Liters Sugar Syrup 3:2

Preparation:

1. Heat water to approx. 40-50°C (don't boil -- boiling produces HMF, which is harmful to bees)
2. Stir in sugar in portions
3. Stir until everything is completely dissolved
4. Let cool to room temperature
5. Feed within 2 to 3 days (ferments otherwise)

Alternative Mixtures

The Optimal Schedule

The timing of fall feeding is crucial. Too early can cause problems (robbing), too late means the winter bees still have to process the food -- which shortens their lifespan.

Weekly Schedule for Fall Feeding

Large portions instead of small amounts: It's better to give 3 to 5 liters at once rather than 1 liter daily. Large portions are taken down and processed faster. Small amounts tempt the bees to forage rather than store.

Comparing Feeding Methods

The Feed Super: Recommendation for Standard Operations

For most beekeepers, the feed super is the best solution. It offers sufficient volume (5 to 15 liters), is well protected against robbing, and allows quick uptake by the bees.

Structure of a feed super:

• Shallow super with integrated feed trough
• Climbing aid (ladder or textured surface) so bees can reach the feed
• Float aid (styrofoam pieces or gauze) so no bees drown
• Placed directly on the brood box

Preventing Robbing

During fall feeding, there is an increased risk of robbing. Strong colonies smell the feed in weaker colonies and try to steal it. Robbing can plunder a colony within hours.

Recognizing Robbing

• Hectic flight activity with fighting bees at the entrance
• Bees trying to enter through gaps and cracks
• Dead bees at the entrance (result of defense)
• Still heavy flight activity in the evening (normally bees don't fly in the evening)

Special Situations

Emergency Feeding in Late Summer

If you discover during an inspection that a colony has almost no food left, emergency feeding is necessary:

• Immediately give 2 to 3 liters of 2:1 or 3:2 sugar syrup
• Fondant as supplement placed directly on the frames
• Reduce entrance against robbing
• Check the next day whether the feed was taken

Nucleus Colonies and Young Colonies

Nucleus colonies and young colonies need special attention during fall feeding:

• Feed smaller amounts (nucleus colonies have fewer bees for processing)
• Start earlier than with production colonies
• Total requirement: 8 to 12 kg, depending on colony strength
• In feed super or feed frame -- no open feed containers (too weak for defense)

Late Feeding (September)

If you only begin feeding in September, use thicker solutions:

• Use 2:1 sugar syrup or invert sugar syrup
• The bees have less time for processing
• Give large portions (5 liters and more)
• Complete by end of September at the latest

Frequently Asked Questions About Fall Feeding

Conclusion

Fall feeding is not rocket science -- but it requires planning and consistency. The digital hive record helps you track food reserves across all colonies. Start early, feed generously, and complete feeding by mid-September. Monitor food reserves by weighing or lifting and respond immediately to shortages. Your bees will process the feed and store it neatly -- you just need to make sure there's enough of it.

Better one kilo too much than one kilo too little. Excess winter stores are a welcome energy boost for colony development in spring.