
Fighting Asian hornets in Cossonay
Have you discovered an Asian hornet's nest? We'll be on site quickly! Call now - Daily Mon-Sun 07:00-21:30. Contact us now: 058 510 22 54
Having the Asian hornet's nest removed
Originating from South-East Asia, the hornet species Vespa velutina has swiftly invaded Switzerland and the entire subcontinent, establishing itself invasively. Despite its non-hostile stance towards humans, it has achieved infamy as a hunter of honey bees, resulting in alarm and apprehension among beekeepers. Within mere hours, a few of these hornets can launch an attack that utterly decimates a bee colony. If you have discovered a hornet's nest on your house, patio, shed, or in your blind box, contact our experts for hornet nest removal in Cossonay!
Use the uncomplicated telephone service of the Hornet experts in Cossonay and simply inform us at 058 510 22 54, we will be on site quickly so that you and everyone in your area feel completely safe again.


Appearance of the Asian hornet
Here are some characteristics that distinguish the Asian hornet:
1. Size: The queen can reach a length of about 3 cm, while the workers are slightly smaller and measure about 2.5 cm.
2. Color: The Asian hornet has a dark body that is almost black, with a yellow stripe at the back of the abdomen. Its face is orange-yellow.
3. Wings: The wings are dark and almost smoky gray.
4. Legs: The hornet has yellow tips on its legs, which is a striking distinguishing feature when it flies.
5. Nest: The Asian hornet's nest is often high in the trees, but it can also be found underground or in tall structures such as chimneys. It has an oval shape and is made of chewed wood, which gives the hornet a papery texture.
It is important to distinguish the Asian hornet from the European hornet (Vespa crabro), which is more harmless and a natural part of the European fauna. If you suspect you have found an Asian hornet nest near you in Cossonay, you should report this to the local authorities, or using our reporting form, as they can spread quickly and be harmful to bees and other insects. To avoid being attacked by the flying inhabitants, you should hire a professional pest controller such as the Hornet Experts Cossonay. We can identify the nest beyond doubt and take further steps to remove the Asian hornets professionally.
News about the Asian hornet in Cossonay

05.08.2025 Western Switzerland: Killer hornet eats bees
The territory of the Asian killer hornet has expanded considerably this year, with a notable increase reported in western Switzerland. This invasive species poses a significant threat to native bee populations, as bees make up the majority of its diet. The potential consequences are serious. Moreover, the hornet represents a danger to individuals with allergies to its venom.

29.07.2025 Serious concerns about the bee population!
Asian hornets are inflicting significant harm on beehives across multiple parts of Europe, as reported by local beekeepers. Even a small number of hornets can destroy an entire bee colony within hours. This sharp decline in pollinators could have serious consequences for pollination, local ecosystems, and agricultural productivity.

22.07.2025 Asian hornet doesn't just eat bees!
The danger it presents to insects is substantial!
The Asian hornet feeds largely on honeybees—up to 85 percent of its diet—alongside beetles and flies. This high level of predation not only poses difficulties for fruit growers but also further threatens already vulnerable bee populations.

15.07.2025 How did the Asian hornet get to Europe?
The Asian hornet likely arrived in Europe unintentionally and has quickly expanded throughout France and nearby countries. Its adaptability to different environments and the absence of natural predators have contributed to its rapid spread. A single nest can generate several hundred new queens in one breeding season.
Asian Hornet Reporting Form
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Help us!
If you discover an Asian hornet or a nest of this invasive species in Cossonay, it is of the utmost importance that you report it immediately. The Asian hornet is not only dangerous to humans, but also poses a serious threat to native bee populations and the ecological balance in Switzerland.
Why is it important to report the find?
The invasion of the Asian hornet in established regions carries significant implications for native insects, honey bees being particularly vulnerable. Feeding on bees, these hornets contribute to a decrease in pollinator populations, which in turn affects local flora and agricultural production. By reporting sightings, experts can react quickly, remove the hornets or their nests and thus prevent the spread of this invasive species.
Notification form for sightings
To address the pressing issue of the Asian hornet overpopulation in Switzerland and protect the delicate balance of our native insect populations, we earnestly urge you to report any suspicions or sightings using our dedicated reporting form. By actively participating, we can promptly intervene and minimize the dissemination of this hazardous species in our ecosystems.
Your contribution is crucial in the fight against the Asian hornet in Cossonay. Together we can protect nature and maintain the balance of our ecosystems;
Thank you for your vigilant attention and your commitment to protecting our environment.
How dangerous is the Asian hornet?
The Asian hornet (Vespa velutina) is a predatory insect that originated in Asia and has spread in recent years to various parts of Europe, including France and now also Switzerland and in Cossonay. Although it poses a threat to honey bees and native biodiversity, it is generally no more dangerous to humans than other wasp species. Nevertheless, there are some aspects to be aware of:
1. Threat to honey bees: The Asian hornet preys on honey bees, threatening native bee populations. A decline in bees can have a negative impact on pollination and thus on local flora and agricultural production.
2. Stings: As with other wasp and hornet species, the stings of the Asian hornet can also be painful. For most people, the stings are unpleasant but not dangerous. However, people who are allergic to wasp or hornet stings can suffer a severe allergic reaction, which in the worst case can lead to anaphylactic shock.
3. Aggressiveness: Although the Asian hornet is not necessarily more aggressive towards humans than other wasp species, it can become aggressive if it feels threatened, especially near its nest.
4. Ecological effects: Apart from the direct effects on honey bees, the spread of the Asian hornet can also disturb the ecological balance by affecting the populations of other insects.
Please note that the Asian hornet should not be mistaken for the Asian giant hornet (*Vespa mandarinia*), also known as the "killer hornet". The giant hornet is notably larger and potentially poses a greater danger to humans due to its more potent venom and the size of its sting.
If you have discovered a nest, call us immediately: 058 510 22 54
Our hornet professionals in Cossonay are certified by the VSS.
Frequently Asked Questions About Asian Hornets in Cossonay
With its capacity to deliver stings that can result in severe harm and even death, the Asian hornet represents a significantly higher level of danger compared to most other hornet species.
Boasting remarkable size, the Asian hornet can measure up to 3 cm in length. Its sleek, ebony physique is adorned with a thick layer of brilliant orange, yellow, and black stripes.
Human encounters with the Asian hornet can lead to severe toxicity. Its bite is associated with intense pain and the possibility of eliciting allergic reactions, making caution essential.
It is crucial for humans to exercise extreme caution around the Asian hornet to minimize the risk of its highly poisonous bite, which can cause severe pain and potentially trigger allergic responses.
The venomous sting of the Asian hornet makes it dangerous. Its sting is more painful than that of other wasps and can induce allergic reactions.
In the event of an Asian hornet encounter, it is crucial to report it by contacting either a designated regional officer for the conservation of wild bees or the relevant department within the Ministry of Agriculture.
It is important to report Asian hornets to prevent attacks and limit the spread of the insect. These insects exhibit strong territorial behavior and aggressive tendencies.
Dealing with Asian hornets in Switzerland necessitates professional hornet control. It is recommended to call a certified pest control service provider for comprehensive mitigation.
Given the Asian hornet's non-protected status, it is vital to conduct regular population monitoring efforts to curtail their expansion and prevent their unhampered dissemination.
The Asian hornet exhibits diverse hibernation habits, either in clusters or alone, finding refuge in the corners of walls, buildings, garden sheds, occasional structures, or tree hollows.
Would you like more information about Asian hornets? Then take a look at our FAQ's about Asian hornets.
Private inquiry form
For an uncomplicated request to remove an Asian hornet's nest, please use our contact form for private individuals.
Real estate inquiry form
Use our property management order form to request the removal of an Asian hornet's nest.