How the great tit helps fight the Asian hornet in your garden

An inconspicuous bird can make a surprisingly significant difference in the fight against the feared Asian hornet – provided the garden suits its needs.

While beekeepers and amateur gardeners have spent years dealing with the spread of the Asian hornet, a native garden bird has been working quietly in the background. The great tit, known to many simply as a cheerful visitor to the bird table, hunts these pests when they are at their most vulnerable. With a few straightforward changes to the garden, you can encourage this helpful bird to stay for the long term while also creating a lively, wildlife-friendly refuge.

Asian hornet: why it poses such a threat to bees

The Asian hornet has spread rapidly across large areas of Europe. Within just a few years, it has colonised extensive regions, found abundant food and encountered very few natural predators. Bee colonies in particular face considerable pressure.

A single colony consumes vast quantities of insects, with honey bees among its main prey. For beekeepers, this means weakened colonies; for gardeners, it can mean fewer pollinators. Over time, this may noticeably reduce both floral displays and harvests in the garden.

Poisons, traps and human intervention can reduce the number of nests, but they never solve the problem entirely. At the same time, nature is beginning to produce its own opponents: native species that are learning to use these newcomers as a food source.

Great tit: the discreet hunter in the shrubs

Great tits do not heroically dive at hornets in flight. Instead, they use a different approach – intelligent, cautious and remarkably effective.

The birds exploit weak points in insect colonies. They are particularly likely to target hornets and related insects in spring and autumn, or during cold weather, when they are sluggish:

• larvae in weakened or abandoned nests
• individual, semi-stunned insects close to the nest
• insects that stray too far from the colony

Great tits become much hungrier during the breeding season. A pair raising several young may fly to the nest hundreds of times a day, carrying an insect on every visit. This may include hornet larvae, as well as caterpillars, beetles and aphids.

“A single pair of great tits can remove several thousand insects from a garden in one season – without poison or effort.”

To people, a great tit appears harmless, even rather sweet. To many pests, however, it is a serious adversary. It can noticeably reduce the number of troublesome insects while also bringing more life to the garden, as other bird species are attracted by its presence.

How to make your garden appealing to great tits

To encourage these birds to remain in the garden, you should provide three things: a secure nesting site, plenty of food and peace and quiet. Putting this into practice is surprisingly easy.

Choosing and hanging a nest box correctly

The right nest box is often the most important first step. A plain wooden box with no varnish or bright paint is suitable for great tits. Chemical coatings may deter them or even be harmful.

Important dimensions for a suitable nest box:

Feature	Recommendation
Entrance-hole diameter	approx. 32 mm
Internal width	around 12 cm
Internal depth	around 12 cm
Height above ground	at least 2–3 metres

A south- or south-east-facing position, with the box tilted slightly forwards, is ideal. This helps keep the inside dry and prevents it from overheating. Choose a quiet location rather than placing it directly above a patio or beside frequently used paths.

Autumn is the best time to put up the box, as birds then begin inspecting potential nesting sites for the following season. It is worth cleaning the box thoroughly at least once a year, ideally in October.

A garden that is allowed to be alive – rather than immaculately tidy

Many gardens look perfectly maintained but are almost empty for birds and insects. Closely mown lawns, few shrubs and hardly any dead wood create a barren space for great tits.

If you want to attract them, deliberately allow a little untidiness:

• a mixed hedge instead of a single row of thuja
• a wilder patch with nettles, faded perennials and fallen leaves
• shrubs such as elder or viburnum, which attract many insects

These features provide shelter, nesting material and, above all, food. The more insects living in the garden, the more appealing it becomes to great tits.

Using insecticides freely is counterproductive. These products destroy not only pests but also valuable prey species. Without this food supply, the birds will stay away and natural pest control breaks down.

Creating a water source and a quiet area

A simple bowl of water can make all the difference. Birds need water to drink and readily use shallow containers for bathing. A small, clean pond or a bird bath on a stand is enough.

Place the water source where there is a clear view around it, allowing birds to spot potential predators early. A few nearby shrubs are useful, provided they do not obscure everything, as the birds can dry themselves and preen there.

If children, a dog and a barbecue are all positioned beside the nest box, the birds are more likely to be driven away. A peaceful section of the garden that is passed through only occasionally greatly improves the chances of attracting them.

Is the great tit enough on its own against the Asian hornet?

The honest answer is no. One species alone cannot solve the hornet problem. Great tits can weaken colonies, eat individual insects and reduce the pressure to some extent, but effective control requires several approaches.

Other bird species also play a part:

• red-backed shrikes, which catch larger insects and impale them on thorns
• blue tits, which hunt in gardens in a similar way to great tits
• bee-eaters, which catch large insects mainly in certain regions

Each of these species makes a small contribution. The more varied a garden’s structure, the more animals it can support – and the more widely the predation pressure on pests is spread.

“Anyone who makes their garden friendly to birds and insects is gradually building a natural defence system against pests.”

Practical steps to get started in your own garden

Many of these measures can be completed over a weekend. One possible plan is:

• Buy or build a nest box and put it up in a quiet spot.
• Designate one part of the garden as a “wild zone” and cut it back less often.
• Plant at least two insect-friendly shrubs, such as elder or cornelian cherry.
• Set out a shallow bowl of water and clean it regularly.
• Greatly reduce, or stop using, pesticides in the garden.

If you also provide a bird table during the colder months, you will soon get to know the great tits better. One important point: in spring and summer, the bird table should take more of a back seat so the birds return to feeding on natural prey.

Background: why the Asian hornet is so successful

The Asian hornet benefits from several factors: milder winters, plentiful food, few predators and human-made structures such as sheds, lofts and dense shrubs. It often builds nests at considerable height, which makes control more difficult.

Colonies reach their greatest strength in late summer. Pressure on apiaries and gardens then increases too. At this stage, weaker insects and larvae are especially likely to become prey – precisely where birds such as the great tit come in.

If you notice nests on your property, contact specialists rather than attempting to deal with them yourself. A hornet sting is painful and may be dangerous for people with allergies.

More nature, less stress: what your garden gains

A garden that attracts great tits changes almost automatically: there are fewer sterile areas, more flowers, more buzzing and more birdsong. This reduces the need for chemicals and makes time spent outdoors more enjoyable.

Children benefit in particular. They can watch birds gathering nesting material, feeding their young and bathing in water. The abstract concept of “nature conservation” becomes a real experience right outside the door.

Naturally, the Asian hornet remains a serious issue for beekeepers and local authorities. Yet by supporting a small bird such as the great tit, you gain a dependable ally in the garden – day after day and season after season. In the long term, these many small steps can often achieve more than one major, one-off action involving poison and technology.