Protecting hives from Asian hornets in winter

The presence of the Asian hornet constitutes a real threat to bee colonies, even during winter. Contrary to popular belief, this period is not entirely free of risks. Protecting hives from Asian hornets in winter helps reduce pressure in spring and preserve the vitality of colonies. This article explains why acting from the cold season onward is essential and what solutions to implement to effectively defend your apiaries.

Understanding the challenges of winter protection

Why protect hives in winter?

Winter is a critical phase: bees significantly reduce their activity, and the colony gathers together to maintain warmth. Meanwhile, the Asian hornet population declines sharply, but the foundresses, future queens of spring, seek shelter to survive the cold season.
This is precisely the moment when the beekeeper can act to limit future pressure: fewer surviving foundresses means fewer active nests in spring.

How does the Asian hornet behave in winter?

During winter

• The Asian hornet colony collapses;
• Only the foundresses leave the nest to overwinter;
• They seek dry and secure locations (woodpiles, barns, roofs);
• No predation on hives occurs, but preparation for the following year is taking shape now.

Indirect risks to hives in winter

• Residual stress due to heavy predation at the end of summer
• Colonies weakened by late attacks
• Massive emergence of foundresses in spring if no action is taken

Recommended professional solutions to reduce hornet presence

Even though hornets do not hunt in winter, this period is ideal for installing preventive devices.
Recommended actions:

• Set up selective traps from the end of winter to capture foundresses emerging from hibernation
• Remove old visible nests (useless at the end of summer or in autumn, but useful during winter)
• Protect the apiary environment (maintenance, branch trimming, elimination of potential shelters)
• Install suitable entrance grids from the end of February
• Provide supplementary feeding to strengthen weakened colonies

To support these measures, Produits-Veto.com offers several effective solutions against Asian hornets.

Benefits of associated beekeeping products

Selective anti-hornet trap for apiaries

• Captures future queens before the creation of new nests
• Significant reduction in pressure in spring
• Reusable season after season

Attractive bait for hornet traps

• Selective formula avoiding attracting bees
• Effective in late winter and spring
• Helps limit the early establishment of primary nests
• Easy to use in all types of traps

FAQ – Frequently asked questions

Should Asian hornets be trapped during winter?

Not in the middle of winter, as hornets are no longer active. However, it is crucial to prepare the traps for the end of winter (February-March) in order to capture the founding queens as they emerge from hibernation.

Should old nests be destroyed?

Yes, winter is the best time: the nests are completely empty. Destroying them prevents them from serving as a refuge for other harmful insects and makes it easier to inspect the apiary.

Are bees in danger during winter because of Asian hornets?

Directly, no: hornets are no longer hunting. Indirectly, yes: a colony weakened by autumn predation withstands the cold less well. Hence the need to strengthen the hive and act preventively.

Winter represents a strategic opportunity to reduce the pressure from Asian hornets and prepare your hives for a calmer spring. By anticipating the period when the founding queens emerge and putting suitable solutions in place, you actively help protect your colonies. Selective traps, attractants and protective accessories are effective tools to limit the proliferation of hornets and help your bees get through the cold season in the best conditions. Early, simple and well-targeted action can make all the difference for the health of your apiary.

To find out more about Asian hornets

• Discover all our bee products
• Find all our hornet traps
• Find out more about bees – unaf-apiculture.fr