Asian hornet: why certain summer perfumes attract Vespa velutina

A small, easy-to-miss detail in your fragrance choice can be the culprit.

In summer, most people carefully shield barbecue food, cakes and lemonade from unwanted insects. What rarely occurs to anyone: Asian hornets are drawn not only to food, but also to certain perfumes and scented skincare on your skin. Wear the wrong notes and you can become more interesting to them than the entire buffet table.

Asian hornet: why it reacts so strongly to certain smells

The Asian hornet, scientifically Vespa velutina, is now considered an invasive species in many parts of Europe. Initially discussed mainly as a threat to bee colonies, it is increasingly a regular visitor on terraces, balconies and garden tables. And once it’s there, it doesn’t just go for sweet dishes - it also investigates anything that smells like ripe fruit or blossoms.

That behaviour comes down to an exceptionally sharp sense of smell. The antennae are packed with specialised sensors that detect specific scent molecules - especially so‑called esters and floral alcohols - which, in nature, signal nectar, plant sap and overripe fruit.

"For the hornet, a particular summer scent on skin is almost indistinguishable from a sweet flower or overripe fruit."

Research in entomology shows that Asian hornets can locate sugar sources from a great distance. Anything that resembles fermented fruit, sugary juices or floral nectar acts like an open invitation. This is exactly where our summer routine becomes tricky, because those same groups of substances also feature in many popular perfumes, body lotions and hairsprays.

The scent that turns you into an insect magnet

Fragrances that are especially problematic are so‑called “gourmand” or intensely sweet scents. These are dominated by notes that evoke desserts, sweets or very ripe fruit. Typical components include:

• Vanilla
• Coconut
• Caramel
• Red fruits (berry accords)
• Peach, pear, mango and other exotic fruits

To create these effects, perfumery often relies on esters such as isoamyl acetate, which smells like banana or very ripe fruit, along with floral alcohols. To people, these blends come across as warm, sensual and summery. To a hornet, that same blend smells like an “all-you-can-eat buffet”.

It isn’t only traditional perfume that can cause issues. The following products can also produce a kind of scent cloud that attracts insects:

• Scented body lotions with sweet or fruity notes
• Sun creams with strong beach-style or floral fragrances
• Body sprays and body splashes with sugar, vanilla or coconut aromas
• Hairsprays and shine sprays with heavily perfumed formulas

"If you layer sweet-smelling products from head to toe, you come across to Asian hornets like one giant flower."

A clear pattern emerges from anecdotal reports: when several people sit outside together, hornets often focus on the one person wearing a strongly fruity summer perfume - even if the food is already covered. Many misread this as “personal attraction” or coincidence; in reality, the insects are simply following the strongest scent stimulus in the area.

Common summer styling mistakes outdoors

When eating outside, most people take precautions like these:

• Meat and sausages are kept covered.
• Cakes and tarts go under a cover.
• Open lemonade, cocktails and juices are avoided.

What’s often overlooked is that personal care products can completely cancel out that caution. A familiar sequence on warm days looks like this:

• In the afternoon: apply a generous amount of sweet body spray.
• Later on: rub fragranced sun cream onto arms, décolletage and legs.
• To finish: add a few spritzes of a fruity perfume.
• Then: sit down right next to the dessert table.

This combination creates a concentrated scent cocktail of sugar, fruit and blossoms. To Asian hornets, it stands out like a “hotspot” among all the other smells. If you already react strongly to stings or you have children nearby, it’s an unnecessary risk.

Adjust your summer routine: protect yourself by choosing the right fragrance

The good news is that nobody has to give up perfume completely in summer. What matters is the type of fragrance and how you apply it. A few simple tweaks can noticeably reduce how attractive you are.

Suitable fragrance families for terraces and picnics

Better choices are scents that read as less sweet and less “edible”. These include, in particular:

• Citrus notes such as bergamot, lemon and grapefruit
• Green fragrances with tea, grass or herbal accents
• Light woody notes such as cedar or pale woods
• Subtle aquatic scents that smell fresh rather than fruity

"The less a fragrance evokes dessert or a fruit bowl, the less interesting it is to Asian hornets."

It’s also worth checking sun-cream labels: options described as “neutral scent” or very lightly fragranced are usually the better choice for long stays in the garden than strongly tropical-smelling products.

Apply it smartly: where perfume is less likely to cause trouble

Beyond the fragrance family, application makes a difference. Rather than spraying bare arms or your décolletage, a more discreet approach helps:

• Apply perfume to the torso before getting dressed so clothing covers most of it.
• Place small accents on less exposed areas, for example along the sides of the body or on the flanks.
• Avoid spraying directly onto hair, shoulders and forearms when you’re outdoors.
• Save heavy reapplication until after you’ve left the table.

If you’re out for a picnic during the day, you can deliberately leave the bottle in the house or in the car, and only top up more generously later in the evening - after eating and indoors.

How hornets perceive scents - and what that means for us

Asian hornets rely heavily on smell for orientation. Their antennae continuously sample the air for signals of sugar sources, prey or potential danger. Molecules such as esters carry a clear message to them: “energy is here”. Because modern perfumes use many of these substances, accidental overlaps are inevitable.

There’s another factor as well: on warm summer evenings, fragrance compounds evaporate faster. Airborne concentrations can be higher than most people assume. When strong scents combine with sweet drinks and leftover food, the stimuli stack up. That can make it even easier for insects to locate the source, because everything is concentrated in one place.

If you’re prone to allergic reactions or you have small children at the table, a more considered fragrance choice can add a margin of safety. For most people, Asian hornet stings are painful but remain local. For allergy sufferers, or if a sting occurs in the mouth or throat, serious complications are possible. In those situations, every avoided contact matters.

In practical terms, that means: light, fresh fragrances, neutrally scented care products and a bit of restraint with spraying not only make the table feel more pleasant. They also reduce the chances of becoming an unintended target for a hornet - and help the summer evening feel far more relaxed.