{"id":27994,"date":"2026-07-30T10:31:32","date_gmt":"2026-07-30T08:31:32","guid":{"rendered":"https:\/\/www.sereni-d.com\/non-classifiee\/que-faire-face-a-un-nid-de-frelon-ou-une-piqure\/"},"modified":"2026-07-30T14:54:11","modified_gmt":"2026-07-30T12:54:11","slug":"what-to-do-if-you-find-a-hornets-nest-or-are-stung","status":"publish","type":"post","link":"https:\/\/www.sereni-d.com\/en\/our-advice\/what-to-do-if-you-find-a-hornets-nest-or-are-stung\/","title":{"rendered":"What should you do if you come across a hornet\u2019s nest or are stung?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Have you spotted a hornet or a suspicious nest nearby? It\u2019s best to avoid taking any impromptu action, especially if there\u2019s a colony present. European or Asian hornets can become aggressive if you get too close. Here are the right steps to take to get rid of these insects and what to do if you\u2019re stung.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Key information<\/h2>\n\n\n\n<div class=\"wp-block-columns has-border-color has-background is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\" style=\"border-color:#00927b;border-style:solid;border-width:2px;border-radius:20px;background-color:#00927b\">\n<div class=\"wp-block-column has-white-color has-text-color has-link-color wp-elements-9461407908f9d82def7b09c4e4979da1 is-layout-flow wp-container-core-column-is-layout-f342ef54 wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-left has-white-color has-text-color has-link-color wp-elements-f8e36d3bc51d784b2ad8855d127a4ee8 wp-block-paragraph\">\u27a1\ufe0f A single hornet does not necessarily indicate the presence of a nest.<br>\u27a1\ufe0f Never attempt to destroy a nest yourself: move away, secure the area and contact a specialist company.<br>\u27a1\ufe0f The cost of a call-out to destroy a nest ranges from \u20ac80 to \u20ac300.<br>\u27a1\ufe0f Traps and repellents may be useful in certain situations, but they are no substitute for the professional removal of a colony.<br>\u27a1\ufe0f After a sting, apply a cold compress and monitor your symptoms. If you experience difficulty breathing, feel unwell or have been stung in the mouth, call 15 or 112 immediately.<\/p>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">What should you do if you see an Asian hornet?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The Asian hornet, or <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Vespa_velutina\">Vespa velutina<\/a>, looks like a large, dark wasp, with a black thorax, an orange band on its abdomen and yellow tips on its legs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here\u2019s what it looks like in photos:<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"667\" data-id=\"27883\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/vespa-velutina.jpg\" alt=\"\" class=\"wp-image-27883\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/vespa-velutina.jpg 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/vespa-velutina-300x200.jpg 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/vespa-velutina-768x512.jpg 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/vespa-velutina-600x400.jpg 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div>\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"667\" data-id=\"27893\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-fleur.jpg\" alt=\"\" class=\"wp-image-27893\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-fleur.jpg 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-fleur-300x200.jpg 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-fleur-768x512.jpg 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-fleur-600x400.jpg 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"661\" data-id=\"27888\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-feuille.png\" alt=\"\" class=\"wp-image-27888\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-feuille.png 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-feuille-300x198.png 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-feuille-768x508.png 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-feuille-600x397.png 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">If you spot one, stay calm. The Asian hornet rarely attacks humans. It only becomes aggressive if you get within 4 or 5 metres of its nest.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A single hornet does not necessarily mean there is a nest nearby. The insect may simply be looking for water, ripe fruit or other insects to feed on.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here are the correct steps to take:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>avoid sudden movements;<\/li>\n\n\n\n<li>do not try to swat it;<\/li>\n\n\n\n<li>do not spray insecticide, especially in a closed room;<\/li>\n\n\n\n<li>keep children and pets away;<\/li>\n\n\n\n<li>turn off the lights and open doors and windows wide.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>See also:<\/strong> <a href=\"https:\/\/www.sereni-d.com\/en\/our-advice\/how-to-recognise-an-asian-hornet-and-its-nest\/\" data-type=\"link\" data-id=\"https:\/\/www.sereni-d.com\/en\/our-advice\/how-to-recognise-an-asian-hornet-and-its-nest\/\">How to recognise an Asian hornet?<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Does killing a hornet attract others?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Squashing a hornet does not automatically attract the whole colony. However, <strong>you should definitely avoid doing so<\/strong>, as the insect may release chemicals that act as an alarm signal to its fellow hornets. This is more dangerous if you are near a nest. Other hornets may then emerge in greater numbers to protect the colony.<\/p>\n\n\n\n<div class=\"wp-block-columns has-border-color has-background is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\" style=\"border-color:#00927b;border-style:solid;border-width:2px;border-radius:20px;background-color:#00927b\">\n<div class=\"wp-block-column has-white-color has-text-color has-link-color wp-elements-895ce222895eca6232d1210890dd7658 is-layout-flow wp-container-core-column-is-layout-f342ef54 wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-left has-white-color has-text-color has-link-color wp-elements-757ca87573df4c92d2fa7361002c4179 wp-block-paragraph\"><strong><strong><strong><strong><strong><strong><strong><strong><strong>\ud83d\udc49 <strong>If a hornet is just passing through, it is best to let it go. However, if there is a nest, never try to kill the hornets yourself.<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/p>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">What should you do if you discover a hornet\u2019s nest?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">What does a hornet\u2019s nest look like?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A hornet\u2019s nest looks like a <strong>large ball of grey-brown paper or cardboard<\/strong>. It is made from chewed wood fibres, which gives it an appearance similar to kraft paper. Depending on the species and the time of year, it can range in diameter from a few centimetres to over 80 cm.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong><strong>Feature<\/strong><\/strong><\/td><td><strong><strong>Asian hornet&#8217;s nest<\/strong><\/strong><\/td><td><strong><strong>European hornet&#8217;s nest<\/strong><\/strong><\/td><td><strong><strong>Wasp\u2019s nest<\/strong><\/strong><\/td><\/tr><tr><td><strong>Aspect<\/strong><\/td><td>A ball or oval shape made of grey-brown paper (kraft paper-like appearance)<\/td><td>Irregular brown paper ball<\/td><td>Grey paper, usually smaller<\/td><\/tr><tr><td><strong>Entrance<\/strong><\/td><td>On the side<\/td><td>Usually under the nest<\/td><td>Beneath the nest or to the side, depending on the species<\/td><\/tr><tr><td><strong>Location<\/strong><\/td><td>High up in the trees, sometimes under a roof, in a hedge or in a building<\/td><td>In a cavity: a hollow tree, a chimney, an attic, a wall, a shed\u2026<\/td><td>Under a roof, in a shed, against a wall, on a shutter or in a hedge<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Photos of hornet nests<\/h3>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"668\" data-id=\"27922\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-de-frelons.png\" alt=\"\" class=\"wp-image-27922\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-de-frelons.png 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-de-frelons-300x200.png 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-de-frelons-768x513.png 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-de-frelons-600x401.png 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"640\" data-id=\"27917\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-asiatiques-nid.png\" alt=\"\" class=\"wp-image-27917\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-asiatiques-nid.png 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-asiatiques-nid-300x192.png 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-asiatiques-nid-768x492.png 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-asiatiques-nid-600x384.png 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"663\" data-id=\"27912\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-nid.png\" alt=\"\" class=\"wp-image-27912\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-nid.png 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-nid-300x199.png 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-nid-768x509.png 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-nid-600x398.png 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"658\" data-id=\"27907\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-frelons.png\" alt=\"\" class=\"wp-image-27907\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-frelons.png 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-frelons-300x197.png 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-frelons-768x505.png 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-frelons-600x395.png 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/figure>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"755\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-frelons-asiatique.png\" alt=\"\" class=\"wp-image-27927 size-full\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-frelons-asiatique.png 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-frelons-asiatique-300x227.png 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-frelons-asiatique-768x580.png 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-frelons-asiatique-600x453.png 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Precautions to take<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Whether it is a nest of Asian or European hornets, a colony can become very aggressive if it feels threatened.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Whilst waiting for a professional to arrive, here are the precautions to take:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>do not approach the nest;<\/li>\n\n\n\n<li>do not touch the structure it is attached to;<\/li>\n\n\n\n<li>never throw anything at it;<\/li>\n\n\n\n<li>do not block the entrance;<\/li>\n\n\n\n<li>do not use a water jet or over-the-counter insecticide;<\/li>\n\n\n\n<li>stop mowing, trimming hedges or pruning nearby;<\/li>\n\n\n\n<li>do not carry out any work;<\/li>\n\n\n\n<li>warn your neighbours;<\/li>\n\n\n\n<li>keep children and pets at a safe distance.<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Can you destroy a hornet\u2019s nest yourself?<\/h3>\n\n\n\n<div class=\"wp-block-columns has-border-color has-background is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\" style=\"border-color:#00927b;border-style:solid;border-width:2px;border-radius:20px;background-color:#00927b\">\n<div class=\"wp-block-column has-white-color has-text-color has-link-color wp-elements-ba6123584df68c31af0fdca327061c68 is-layout-flow wp-container-core-column-is-layout-f342ef54 wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-left has-white-color has-text-color has-link-color wp-elements-80711e359a59edd7f63e1731431ef99a wp-block-paragraph\">No, definitely not. Even if you use an insecticide or an aerosol spray available from shops, there\u2019s a risk that you might be attacked by hornets or hurt yourself.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">There is another risk to consider: mistaking an Asian hornet\u2019s nest for that of a European hornet, a species that is protected in certain regions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can an empty nest be removed?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Yes, provided you are certain it has been completely abandoned<\/strong>. A hornet\u2019s nest is not usually reused the following year, but it may remain occupied until late autumn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Who should you call about a hornet\u2019s nest?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The answer depends on the nest\u2019s location and the level of danger. In principle, on private property, the removal of a nest is not the responsibility of the local authorities, but of a specialist company.<\/p>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Hiring a pest control company<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A pest control specialist in hornets can:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>identify the species;<\/li>\n\n\n\n<li>assess the level of risk;<\/li>\n\n\n\n<li>select the appropriate treatment method;<\/li>\n\n\n\n<li>treat a nest at height;<\/li>\n\n\n\n<li>secure the area;<\/li>\n\n\n\n<li>neutralise or remove the nest.<\/li>\n<\/ul>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"657\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-morts.png\" alt=\"\" class=\"wp-image-27957 size-full\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-morts.png 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-morts-300x197.png 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-morts-768x505.png 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-morts-600x394.png 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">How can you find a competent professional?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ask for a detailed quote and check what it includes: call-out, treatment, removal of the nest if necessary, and a follow-up visit should the problem recur.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The professional must also be fully authorised to use biocidal products intended for professional use only. The <a href=\"https:\/\/certibiocide.din.developpement-durable.gouv.fr\/faq\">\u2018pests\u2019 Certibiocide certificate<\/a> specifically covers TP18-type insecticides, used against arthropods such as hornets and wasps. It is awarded following a 21-hour training course \u2013 equivalent to three days \u2013 at an organisation accredited by the Ministry for the Environment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Please note: <\/strong>the Certibiocide certificate is an individual qualification, not a certification awarded to the entire company. You should therefore ask whether the person carrying out or supervising the treatment holds a valid certificate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/certibiocide.din.developpement-durable.gouv.fr\/verifCertificat\">Check a Certibiocide certificate<\/a><\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/mairie.jpg\" alt=\"\" class=\"wp-image-27973 size-full\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/mairie.jpg 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/mairie-300x200.jpg 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/mairie-768x512.jpg 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/mairie-600x400.jpg 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Should I contact the local council?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Hornet control measures vary from one local authority to another.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The local council may:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>record a report;<\/li>\n\n\n\n<li>refer you to a service provider;<\/li>\n\n\n\n<li>offer local assistance;<\/li>\n\n\n\n<li>take action if the nest is on public land;<\/li>\n\n\n\n<li>not provide any specific assistance.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Some local authorities contribute towards the costs, whilst others leave the full cost to the owner of the land in question.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">The fire service in an emergency<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The fire service can be contacted in the event of immediate danger, for example:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>an attack in progress;<\/li>\n\n\n\n<li>a nest in a busy public building;<\/li>\n\n\n\n<li>a vulnerable person who cannot be moved to safety;<\/li>\n\n\n\n<li>an urgent risk to several people.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Outside of an emergency, please contact a professional hornet nest removal company instead.<\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/pompier.jpg\" alt=\"\" class=\"wp-image-27968 size-full\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/pompier.jpg 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/pompier-300x200.jpg 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/pompier-768x512.jpg 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/pompier-600x400.jpg 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Hornet\u2019s nest: who should pay for its removal?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Who is responsible depends on the location of the nest, the tenancy agreement and the circumstances.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Situation<\/strong><\/td><td><strong><strong>Who should I contact?<\/strong><\/strong><\/td><td><strong><strong>Who usually pays?<\/strong><\/strong><\/td><\/tr><tr><td>A nest on a property occupied by its owner<\/td><td>A pest control company<\/td><td>The owner<\/td><\/tr><tr><td>A nest in a rented flat<\/td><td>The landlord or estate agent prior to the visit<\/td><td>It depends on the tenancy agreement, the location of the nest and the cause of the problem<\/td><\/tr><tr><td>A nest in the communal areas of a block of flats<\/td><td>The property manager<\/td><td>Co-ownership, in accordance with the terms and conditions set out<\/td><\/tr><tr><td>A nest on a neighbouring plot<\/td><td>The owner of the land in question<\/td><td>The landowner<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">How much does it cost to remove a hornet\u2019s nest?<\/h2>\n\n\n\n<div class=\"wp-block-columns has-border-color has-background is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\" style=\"border-color:#00927b;border-style:solid;border-width:2px;border-radius:20px;background-color:#00927b\">\n<div class=\"wp-block-column has-white-color has-text-color has-link-color wp-elements-f745c14f5e12683c177d5f6b6c77db51 is-layout-flow wp-container-core-column-is-layout-f342ef54 wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-left has-white-color has-text-color has-link-color wp-elements-463ed75241ef443f99d82a53dab23e15 wp-block-paragraph\">The cost of removing a hornet\u2019s nest is usually <strong>between<\/strong> <strong>\u20ac80 and \u20ac300 including VAT<\/strong>.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The price depends mainly on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>the height and accessibility of the nest;<\/li>\n\n\n\n<li>its size and location;<\/li>\n\n\n\n<li>the equipment required, such as a ladder or a cherry picker;<\/li>\n\n\n\n<li>the distance travelled by the professional;<\/li>\n\n\n\n<li>the urgency of the job;<\/li>\n\n\n\n<li>whether or not the nest is removed after it has been neutralised.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2026 Prices \u2013 Hornet\u2019s nest removal<\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td><\/td><td><strong><strong>Average price<\/strong><\/strong><\/td><\/tr><tr><td>Accessible nest (at head height)<\/td><td>80 &#8211; 120 \u20ac<\/td><\/tr><tr><td>Nest high up (5 to 15 m)<\/td><td>120 &#8211; 200 \u20ac<\/td><\/tr><tr><td>Nests that are difficult to access (roofs, chimneys, lofts)<\/td><td>150 &#8211; 300 \u20ac&nbsp;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ask for several quotes, providing photos where possible and all the necessary details: height, size, location, etc.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"668\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-de-frelons.png\" alt=\"\" class=\"wp-image-27922 size-full\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-de-frelons.png 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-de-frelons-300x200.png 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-de-frelons-768x513.png 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/nid-de-frelons-600x401.png 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Can a hornet\u2019s nest be removed free of charge?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Some local authorities, inter-municipal bodies or departments cover all or part of the cost of the operation. The rules vary depending on where you live and may require you to use an approved contractor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Costs may also be covered:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>if the nest is on public land;<\/li>\n\n\n\n<li>by the landlord or property manager, depending on its location;<\/li>\n\n\n\n<li>through cover provided under certain home insurance policies; or by the owner of the land in question.<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\"><div class=\"wp-block-media-text__content\">\n<h2 class=\"wp-block-heading\">Should you set up an Asian hornet trap?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">An Asian hornet trap may be useful in certain situations, but it is never a substitute for the professional removal of a nest. If used incorrectly, it can also catch many insects that are not the target, including bees, butterflies and other pollinators.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trapping may be justified for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>providing temporary protection for an apiary;<\/li>\n\n\n\n<li>monitoring an area where hornets are regularly seen;<\/li>\n\n\n\n<li>taking part in a targeted and supervised trapping campaign;<\/li>\n\n\n\n<li>temporarily limiting the presence of individual hornets around a specific location.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns has-border-color has-background is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\" style=\"border-color:#00927b;border-style:solid;border-width:2px;border-radius:20px;background-color:#00927b\">\n<div class=\"wp-block-column has-white-color has-text-color has-link-color wp-elements-989d078f073b6a2b1f536b6284e8ef2b is-layout-flow wp-container-core-column-is-layout-f342ef54 wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-left has-white-color has-text-color has-link-color wp-elements-00349c9d85a4323bfd05bd15ff1c6077 wp-block-paragraph\">Their effectiveness varies, and they may cause more damage to biodiversity than to the target colony.<\/p>\n<\/div>\n<\/div>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-cote-1.jpg\" alt=\"\" class=\"wp-image-27873 size-full\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-cote-1.jpg 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-cote-1-300x200.jpg 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-cote-1-768x512.jpg 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelon-asiatique-cote-1-600x400.jpg 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Is a homemade hornet trap effective?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">There\u2019s the bottle trap, which is easy to make, but its effectiveness is very limited. The problem is that whilst it can catch hornets, it also traps bees, butterflies and other insects that are beneficial to biodiversity. It\u2019s also worth noting that the bait becomes less attractive in hot weather or when it rains. Finally, it is clearly not enough to get rid of a colony.<\/p>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-mort.jpg\" alt=\"\" class=\"wp-image-27945 size-full\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-mort.jpg 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-mort-300x225.jpg 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-mort-768x576.jpg 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/frelons-mort-600x450.jpg 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<h2 class=\"wp-block-heading\">Are hornet repellents and sprays effective?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A hornet repellent can help keep them away from a patio or dining area on an ad hoc basis, but its effect is often short-lived. No repellent removes a nest or addresses the root cause of the problem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hornet sprays and aerosols have a more direct effect. There are long-range varieties available for targeting hornets from a distance. This is useful for dealing with a single hornet, but not for treating a colony.<\/p>\n<\/div><\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Can you use an aerosol can on a hornet\u2019s nest?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No, this is strongly advised against. The actual range may be insufficient and could provoke an immediate reaction from the colony. Hornets may swarm out in large numbers to attack you. You also expose yourself to the product and to the risk of falling.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What should you do after a hornet sting?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A hornet can sting several times. After being stung, move away from the area immediately to avoid another attack.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Quickly remove any rings, bracelets or shoes if the sting is on a hand, arm or foot, as the area may swell. Then clean the skin with soap and water, and apply a cold compress for a few minutes, protecting the skin with a cloth.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Monitor your general condition over the following hours.<\/p>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\"><div class=\"wp-block-media-text__content\">\n<h2 class=\"wp-block-heading\">What are the usual symptoms?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A hornet sting causes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>sharp pain;<\/li>\n\n\n\n<li>redness;<\/li>\n\n\n\n<li>a sensation of heat;<\/li>\n\n\n\n<li>itching;<\/li>\n\n\n\n<li>swelling around the sting site.<\/li>\n<\/ul>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"657\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/piqure-bras.png\" alt=\"\" class=\"wp-image-27962 size-full\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/piqure-bras.png 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/piqure-bras-300x197.png 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/piqure-bras-768x505.png 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/piqure-bras-600x394.png 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure><\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">How long does the pain from a hornet sting last?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The pain is intense immediately after the sting, then eases over the course of a few hours. However, discomfort, redness or swelling may persist for a few days.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The duration depends on the area affected, the amount of venom injected, your individual sensitivity and the number of stings.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Is it normal for the sting to swell up the next day?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes, a local reaction may continue to worsen over the following hours and be more noticeable the next day.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">See a doctor if:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>the swelling becomes very severe;<\/li>\n\n\n\n<li>the pain increases rather than subsides;<\/li>\n\n\n\n<li>the redness spreads significantly;<\/li>\n\n\n\n<li>the area becomes very hot or appears to be infected;<\/li>\n\n\n\n<li>you develop a fever, feel unwell or experience other general symptoms.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">What should you do if you are stung on the face or in the mouth?<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"655\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/piqure-frelon-oeil.png\" alt=\"\" class=\"wp-image-27939\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/piqure-frelon-oeil.png 1000w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/piqure-frelon-oeil-300x197.png 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/piqure-frelon-oeil-768x503.png 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2026\/07\/piqure-frelon-oeil-600x393.png 600w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">In this case, call 15 or 112, as the swelling may obstruct your airways.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here are the situations in which you should call the emergency services:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>difficulty breathing;<\/li>\n\n\n\n<li>swelling of the tongue or throat;<\/li>\n\n\n\n<li>feeling unwell or loss of consciousness;<\/li>\n\n\n\n<li>severe vomiting;<\/li>\n\n\n\n<li>a generalised reaction with rashes, itching or swelling over the body;<\/li>\n\n\n\n<li>multiple stings;<\/li>\n\n\n\n<li>a known allergy to venom.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2025\/02\/labrador-retriever-1024x682.jpg\" alt=\"chien qui dort\" class=\"wp-image-11924 size-full\" srcset=\"https:\/\/www.sereni-d.com\/wp-content\/uploads\/2025\/02\/labrador-retriever-1024x682.jpg 1024w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2025\/02\/labrador-retriever-300x200.jpg 300w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2025\/02\/labrador-retriever-768x512.jpg 768w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2025\/02\/labrador-retriever-600x400.jpg 600w, https:\/\/www.sereni-d.com\/wp-content\/uploads\/2025\/02\/labrador-retriever.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">What should you do if a dog or cat is stung?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">First, move the animal away from the area. Contact a vet immediately if you notice:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>a sting in the mouth or throat;<\/li>\n\n\n\n<li>swelling of the muzzle, tongue or neck;<\/li>\n\n\n\n<li>difficulty breathing;<\/li>\n\n\n\n<li>multiple stings;<\/li>\n\n\n\n<li>unusual lethargy, vomiting or discomfort.<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ<\/h2>\n\n\n\n<div class=\"wp-block-faq-block-for-gutenberg-faq\" style=\"background:#f6f7f7\"><div class=\"question\" style=\"background:none;color:#000\"><h4 style=\"color:#000\">At what time of year should we be particularly vigilant about hornets?<\/h4><\/div><div class=\"answer\" style=\"background:none;color:#000\">From spring to autumn. In spring, the queens build a small hornet\u2019s nest (primary nest). During the summer, the colony grows rapidly. It is in late summer and early autumn that the nests are at their largest and activity is at its peak. An Asian hornet\u2019s nest is then gradually abandoned in winter.<\/div><\/div>\n\n\n\n<div class=\"wp-block-faq-block-for-gutenberg-faq\" style=\"background:#f6f7f7\"><div class=\"question\" style=\"background:none;color:#000\"><h4 style=\"color:#000\">Is it possible to block the entrance to a hornet\u2019s nest?<\/h4><\/div><div class=\"answer\" style=\"background:none;color:#000\">No. This may trigger a defensive reaction from the colony and cause the hornets to look for another way out, increasing the risk of stings.<\/div><\/div>\n\n\n\n<div class=\"wp-block-faq-block-for-gutenberg-faq\" style=\"background:#f6f7f7\"><div class=\"question\" style=\"background:none;color:#000\"><h4 style=\"color:#000\">Do hornets return to the same nest?<\/h4><\/div><div class=\"answer\" style=\"background:none;color:#000\">Generally speaking, no. An old nest is not reused the following year.<\/div><\/div>\n\n\n\n<div class=\"wp-block-faq-block-for-gutenberg-faq\" style=\"background:#f6f7f7\"><div class=\"question\" style=\"background:none;color:#000\"><h4 style=\"color:#000\">Will insurance cover the cost of destroying a hornet\u2019s nest?<\/h4><\/div><div class=\"answer\" style=\"background:none;color:#000\">Yes, in some cases. Check with your insurer directly before calling in a professional.<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Have you spotted a hornet or a suspicious nest nearby? It\u2019s best to avoid taking any impromptu action, especially if there\u2019s a colony present. European or Asian hornets can become aggressive if you get too close. Here are the right steps to take to get rid of these insects and what to do if you\u2019re [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":27928,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1,71,297],"tags":[],"class_list":["post-27994","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee","category-our-advice","category-wasps-hornets"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hornet\u2019s nest or sting: what to do - Sereni-d\u00ae<\/title>\n<meta name=\"description\" content=\"Hornet\u2019s nest, a lone hornet or a sting: find out what to do, who to call, how much the call-out costs and when to contact the emergency services.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sereni-d.com\/en\/our-advice\/what-to-do-if-you-find-a-hornets-nest-or-are-stung\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hornet\u2019s nest or sting: what to do - 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