{"id":14008,"date":"2026-10-22T09:37:57","date_gmt":"2026-10-22T13:37:57","guid":{"rendered":"https:\/\/extermipro.com\/non-classe\/mulot-ou-souris-differencier\/"},"modified":"2026-10-28T16:09:20","modified_gmt":"2026-10-28T20:09:20","slug":"mulot-ou-souris-differencier","status":"publish","type":"post","link":"https:\/\/extermipro.com\/en\/blog-extermination-montreal\/mulot-ou-souris-differencier\/","title":{"rendered":"Deer mouse or house mouse: how to tell the difference at home"},"content":{"rendered":"<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Inter:wght@400;500;600;700;800&display=swap');\n\n\/* === Police Inter sur tout le contenu de l'article === *\/\n.elementor-widget-theme-post-content,\n.elementor-widget-theme-post-content p,\n.elementor-widget-theme-post-content li,\n.elementor-widget-theme-post-content h2,\n.elementor-widget-theme-post-content h3,\n.elementor-widget-theme-post-content h4,\n.elementor-widget-theme-post-content blockquote,\n.elementor-widget-theme-post-content strong,\n.elementor-widget-theme-post-content em {\n  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif !important;\n  font-feature-settings: 'cv02','cv03','cv04','cv11';\n}\n.elementor-widget-theme-post-content,\n.elementor-widget-theme-post-content p,\n.elementor-widget-theme-post-content li {\n  font-size: 17.5px !important;\n  line-height: 1.75 !important;\n  color: #2d3748 !important;\n  letter-spacing: -0.005em !important;\n  font-weight: 400 !important;\n}\n.elementor-widget-theme-post-content p { margin: 0 0 22px !important; 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}\n  .elementor-widget-theme-post-content h3 { font-size: 19px !important; }\n  .ep-greenbox, .ep-callout, .ep-quartiers { padding: 24px 22px !important; }\n}\n\/* ========================================================\n   V6 \u2014 Additions visuelles (\u00e0 int\u00e9grer au cssBlock V5)\n   - Tableau comparatif \u00e9l\u00e9gant\n   - \u00c9chelle de gravit\u00e9 \/ risque (bars CSS pures)\n   - Calendrier saisonnier (timeline 12 mois)\n   - Photo inline avec l\u00e9gende\n   - Stat callout (chiffres publics : Ville de Montr\u00e9al, Sant\u00e9 Publique)\n   ======================================================== *\/\n\n\/* === Tableau comparatif === *\/\n.ep-table {\n  width: 100% !important;\n  border-collapse: separate !important;\n  border-spacing: 0 !important;\n  margin: 32px 0 !important;\n  font-family: 'Inter', system-ui, sans-serif !important;\n  font-size: 15px !important;\n  border-radius: 12px !important;\n  overflow: hidden !important;\n  box-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 0 0 1px rgba(40,152,64,0.1);\n}\n.ep-table thead {\n  background: linear-gradient(135deg, #1a6e2c 0%, #289840 100%);\n}\n.ep-table thead th {\n  color: white !important;\n  font-weight: 600 !important;\n  text-align: left !important;\n  padding: 14px 18px !important;\n  font-size: 14px !important;\n  letter-spacing: 0.02em;\n  text-transform: uppercase;\n  border: 0 !important;\n}\n.ep-table tbody tr { transition: background 0.15s; 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}\n.ep-calendar-legend .swatch-peak::before { background: #c0392b; }\n.ep-calendar-legend .swatch-off::before { background: rgba(0,0,0,0.06); }\n\n\/* === Photo inline avec l\u00e9gende === *\/\n.ep-figure {\n  margin: 36px 0 !important;\n  text-align: center;\n}\n.ep-figure img {\n  width: 100% !important;\n  max-width: 800px !important;\n  height: auto !important;\n  border-radius: 14px !important;\n  box-shadow: 0 4px 18px rgba(0,0,0,0.08), 0 0 0 1px rgba(40,152,64,0.06);\n  display: block;\n  margin: 0 auto;\n}\n.ep-figure figcaption {\n  font-family: 'Inter', system-ui, sans-serif;\n  font-size: 13px;\n  color: #6a7585;\n  font-style: italic;\n  margin-top: 12px;\n  max-width: 700px;\n  margin-left: auto;\n  margin-right: auto;\n  line-height: 1.5;\n}\n\n\/* === Stat callouts (chiffres publics seulement) === *\/\n.ep-stats {\n  display: grid;\n  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));\n  gap: 14px;\n  margin: 32px 0 !important;\n}\n.ep-stat {\n  background: white;\n  border: 1px solid rgba(40,152,64,0.12);\n  border-left: 3px solid #289840;\n  padding: 20px 22px;\n  border-radius: 10px;\n  text-align: left;\n}\n.ep-stat-number {\n  font-family: 'Inter', system-ui, sans-serif;\n  font-size: 28px;\n  font-weight: 700;\n  color: #1a6e2c;\n  line-height: 1;\n  letter-spacing: -0.02em;\n}\n.ep-stat-label {\n  font-size: 13px;\n  color: #4a5568;\n  margin-top: 6px;\n  line-height: 1.4;\n}\n.ep-stat-source {\n  font-size: 11px;\n  color: #94a3b8;\n  margin-top: 8px;\n  font-style: italic;\n}\n\n\/* === Mobile === *\/\n@media (max-width: 768px) {\n  .ep-table { font-size: 13px !important; }\n  .ep-table thead th, .ep-table tbody td { padding: 10px 12px !important; }\n  .ep-meter-label { flex: 0 0 100px; font-size: 13px; }\n  .ep-calendar-grid { grid-template-columns: repeat(6, 1fr); }\n  .ep-calendar-grid .ep-calendar-cell:nth-child(n+13) { display: none; }\n  .ep-figure img { border-radius: 10px !important; }\n  .ep-stat-number { font-size: 24px; }\n}\n\n<\/style>\n\n\n\n<p class=\"wp-block-paragraph\">Mulot ou souris \u2014 la question revient chaque automne, quand les temp\u00e9ratures chutent et qu&rsquo;on entend gratter dans les murs. Les deux rongeurs partagent une silhouette similaire, mais ils ont des biologies, des habitats et des comportements bien distincts. Confondre les deux, c&rsquo;est risquer de mal cibler la pr\u00e9vention. En octobre, les rongeurs cherchent un abri chaud pour l&rsquo;hiver, et les b\u00e2timents montr\u00e9alais \u2014 triplex, condos, maisons de Rosemont, sous-sols non finis de Villeray \u2014 deviennent des destinations de choix.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The difference between a deer mouse and a house mouse is in the details: size, belly colour, ear length, nocturnal behaviour. Understanding these signs lets you act in the right place, at the right time, with the right sealing materials. This guide compares the two species point by point, explains why fall is the critical season, and details what each type of sign reveals about the animal that left it.<\/p>\n\n\n\n<div class='ep-greenbox'>\n<strong>Key takeaways \u2014 deer mouse vs house mouse:<\/strong>\n<ul>\n  <li><strong>Size:<\/strong> the deer mouse (<em>Peromyscus maniculatus<\/em>), commonly called \u201cmulot\u201d in Quebec, measures about 8-10 cm (body only); the house mouse (<em>Mus musculus<\/em>) measures 7-10 cm (body only) \u2014 the two species are mainly told apart by their ears, eyes and belly colour.<\/li>\n  <li><strong>Colouring:<\/strong> the deer mouse has a reddish-brown back and a clean white belly; the house mouse is a uniform grey-brown, with a greyish belly and no sharp dividing line.<\/li>\n  <li><strong>Natural habitat:<\/strong> the deer mouse prefers wooded areas, gardens and sheds on the outskirts; the house mouse is a commensal species that lives almost exclusively inside buildings.<\/li>\n  <li><strong>Signs:<\/strong> deer mouse droppings are spindle-shaped (5-7 mm) with pointed ends; house mouse droppings are cylindrical (3-5 mm) with slightly rounded ends.<\/li>\n  <li><strong>Prevention:<\/strong> both rodents get in through openings barely 6 mm wide \u2014 any unsealed gap around pipes and ducts, door sills and foundations is a potential way in.<\/li>\n<\/ul>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Deer mouse and house mouse: what are the <span class=\"ep-green\">physical differences<\/span> that help you identify them?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The deer mouse (<em>Peromyscus maniculatus<\/em>), commonly called \u201cmulot\u201d in Quebec, and the house mouse (<em>Mus musculus<\/em>) differ in several specific physical traits: belly colour, the relative size of the ears and eyes, and tail length compared with the body. These criteria allow a reliable identification, even without catching the animal.<\/p>\n\n\n<div class=\"wp-block-image ep-figure\">\n<figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/extermipro.com\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-Feb-9-2026-08_24_43-PM.webp\" alt=\"House mouse spotted in a kitchen\" class=\"wp-image-10423\" srcset=\"https:\/\/extermipro.com\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-Feb-9-2026-08_24_43-PM.webp 1536w, https:\/\/extermipro.com\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-Feb-9-2026-08_24_43-PM-300x200.webp 300w, https:\/\/extermipro.com\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-Feb-9-2026-08_24_43-PM-1024x683.webp 1024w, https:\/\/extermipro.com\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-Feb-9-2026-08_24_43-PM-768x512.webp 768w, https:\/\/extermipro.com\/wp-content\/uploads\/2026\/02\/ChatGPT-Image-Feb-9-2026-08_24_43-PM-18x12.webp 18w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><figcaption class=\"wp-element-caption\">A mouse spotted in a kitchen \u2014 often the first sign of an infestation already well established behind the cabinets or inside hollow walls.<\/figcaption><\/figure>\n<\/div>\n\n\n\n\n<p class=\"wp-block-paragraph\">The ears are the first clue. On the deer mouse, they are large, rounded and very prominent \u2014 if you fold the ear forward, it touches or goes past the eye. On the house mouse, the ears are smaller and stick out less. The eyes tell the same story: the deer mouse has large, shiny black eyes that are easy to see, suited to life in open areas; the house mouse has smaller eyes that are proportionally less noticeable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The tail is another strong marker. The deer mouse\u2019s tail is as long as its body, or slightly longer \u2014 it can reach 9-11 cm. The house mouse\u2019s tail is comparable in length to its body, but is usually equal or slightly shorter. The colouring is a clear contrast: the deer mouse has a reddish-brown back and a pure white belly, with a well-defined colour line along its sides. The house mouse has a uniform grey-brown coat, with no marked contrast between back and belly. Finally, the way they move is different: the deer mouse hops in jerky bursts, while the house mouse runs low to the ground, hugging the walls.<\/p>\n\n\n<hr class=\"ep-hr\">\n\n\n<h2 class=\"wp-block-heading\">Why do both rodents get into <span class=\"ep-green\">residential buildings<\/span> in the fall?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In the fall, deer mice and house mice respond to the same biological signal: falling temperatures and dwindling food outdoors push them to look for a warm shelter and a steady food source. Residential buildings offer both, which makes them prime targets as soon as the nights turn cool.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The house mouse is a commensal species \u2014 it has evolved in close association with humans for thousands of years. It does not easily survive outdoors in a northern winter; its goal is to get inside a building and set up a permanent colony. Once settled in an unfinished basement or behind a kitchen cabinet, it stays there all year. In these conditions, females can produce several litters in a row.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le mulot, lui, est d&rsquo;abord un animal de lisi\u00e8re \u2014 bois\u00e9s, jardins, parterres, cabanons. Il entre dans les maisons de fa\u00e7on plus opportuniste, souvent via le garage, le cabanon attenant ou une galerie de sous-sol mal \u00e9tanch\u00e9e. Dans les quartiers comme Ahuntsic-Cartierville ou Rosemont, les terrains adjacents aux parcs et ruelles verdies multiplient les points de contact entre les zones bois\u00e9es et les fondations. En octobre, sans transition saisonni\u00e8re douce, les mulots migrent rapidement vers les structures chauff\u00e9es les plus proches.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Both species can live in the same building, but they occupy different niches: the house mouse prefers warm indoor spaces, while the deer mouse readily settles in a shed, a crawl space or the gap between two exterior walls.<\/p>\n\n\n<hr class=\"ep-hr\">\n\n\n<h2 class=\"wp-block-heading\">How can you tell <span class=\"ep-green\">deer mouse signs and droppings<\/span> from those of a house mouse?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Droppings and other signs left by rodents are the easiest evidence to spot without a trap or a camera. Deer mice and house mice leave droppings that can be recognized by their shape, size and placement, so you can identify the species before you even see the animal.<\/p>\n\n\n\n<table class=\"ep-table\">\n  <thead>\n    <tr>\n      <th>Criterion<\/th>\n      <th>Deer mouse (<em>P. maniculatus<\/em>)<\/th>\n      <th>House mouse<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>Dropping length<\/td>\n      <td>5\u20137 mm<\/td>\n      <td>3\u20135 mm<\/td>\n    <\/tr>\n    <tr>\n      <td>Shape<\/td>\n      <td>Spindle-shaped, pointed ends<\/td>\n      <td>Cylindrical, rounded ends<\/td>\n    <\/tr>\n    <tr>\n      <td>Colour when fresh<\/td>\n      <td>Dark brown, almost black<\/td>\n      <td>Shiny black<\/td>\n    <\/tr>\n    <tr>\n      <td>Placement<\/td>\n      <td>Scattered, often near entry points<\/td>\n      <td>Concentrated along walls, in pantries and cupboards<\/td>\n    <\/tr>\n    <tr>\n      <td>Gnaw marks<\/td>\n      <td>Whole seeds, peels, plant matter<\/td>\n      <td>Punctured packaging, soap, plastic<\/td>\n    <\/tr>\n    <tr>\n      <td>Urine odour<\/td>\n      <td>Less noticeable, often absent indoors<\/td>\n      <td>Strong, musky, lingering along runways<\/td>\n    <\/tr>\n    <tr>\n      <td>Typical nest<\/td>\n      <td>Leaves, moss, dry grass<\/td>\n      <td>Shredded fabric, paper, insulation<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Runways are revealing. The house mouse leaves greasy smears (<em>rub marks<\/em>) on baseboards and wall corners \u2014 a buildup of body oil and packed dust that forms a shiny brownish-grey line. The deer mouse, less used to confined spaces, generally does not leave these marks along indoor runways. If you find sunflower seeds or berries stored in a corner \u2014 typical deer mouse hoarding behaviour \u2014 the identification is almost certain. The house mouse does not store food; it eats on the spot.<\/p>\n\n\n\n<div class='ep-callout'>\n<strong>\u26a0\ufe0f Be careful when handling droppings:<\/strong> rodent droppings can transmit hantavirus (Sin Nombre virus in Canada) when contaminated dust is inhaled. Never sweep them up dry \u2014 dampen the area with a household disinfectant, wear disposable gloves, and air out the room before cleaning. If you find an active nest with lots of droppings, consult a professional before taking action. The<a class='ep-link' href=\"https:\/\/www.quebec.ca\/habitation-territoire\/milieu-de-vie-sain\/proceder-a-l-extermination-de-punaises-de-lit\" target=\"_blank\" rel=\"noopener\">legal framework for pest control treatments in Quebec<\/a> sets out specific rules for work in occupied homes.\n<\/div>\n\n\n<hr class=\"ep-hr\">\n\n\n<h2 class=\"wp-block-heading\">Which areas should you seal first to keep <span class=\"ep-green\">rodents out of a home<\/span> in Montreal?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sealing is the most effective preventive measure against both species. Deer mice and house mice get through openings barely 6 mm wide \u2014 the diameter of a pencil. Finding and sealing these entry points before winter eliminates the problem at the source, without using chemical products.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Priority areas in a typical Montreal building:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n  <li><strong>Foundation and door sills:<\/strong> les vieux triplex du Plateau-Mont-Royal et de C\u00f4te-des-Neiges ont souvent des seuils de porte arri\u00e8re dont le joint en caoutchouc est craquel\u00e9. Remplacez-le ou installez un balai de seuil m\u00e9tallique.<\/li>\n  <li><strong>Plumbing and electrical lines:<\/strong> every pipe that passes through a wall or floor leaves a gap. Pack it tightly with steel wool (not fibreglass \u2014 rodents can tunnel through it), then seal with silicone or polyurethane sealant.<\/li>\n  <li><strong>Basement vents:<\/strong> aging metal grilles corrode and pull apart. Inspect every grille; replace rusted mesh with 1\/4-inch (6 mm) stainless steel mesh.<\/li>\n  <li><strong>Roof-wall junction (soffits):<\/strong> les rongeurs grimpent. Les soffites perc\u00e9s ou mal ajust\u00e9s sont une voie d&rsquo;entr\u00e9e fr\u00e9quente dans les maisons unifamiliales de Rosemont et d&rsquo;Outremont. Colmatez avec une mousse polyur\u00e9thane dense, puis finissez au calfeutrant.<\/li>\n  <li><strong>Basement hatch and attached shed:<\/strong> if the shed is attached to the house, any gap in the shared wall becomes an indoor corridor. Install a strip of galvanized metal along the bottom of the door.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">According to the <a class='ep-link' href=\"https:\/\/www.quebec.ca\/habitation-territoire\/milieu-de-vie-sain\/recourir-services-entreprise-gestion-parasitaire\" target=\"_blank\" rel=\"noopener\">Quebec government guidelines on pest management<\/a>, a professional certified under the MELCCFP framework (C5 or D5 business permit, CD5 certificate for technicians) can carry out a full perimeter inspection and recommend sealing work suited to the building\u2019s structure. Professional sealing follows a systematic protocol that covers blind spots an untrained eye would miss.<\/p>\n\n\n<hr class=\"ep-hr\">\n\n\n<h2 class=\"wp-block-heading\">DIY or professional: when should you call an exterminator for a <span class=\"ep-green\">deer mouse or house mouse problem<\/span>?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Doing it yourself is sometimes enough for a single deer mouse that came in through a door left open. But a house mouse colony settled in the walls, or deer mice that come back every fall through an unidentified entry point, calls for a structured professional approach in two visits, with the follow-up visit 15 to 20 days after the first.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DIY has clear limits. Snap traps work for catching the mice you can see, but they don\u2019t fix the root of the problem: access. A homeowner can set ten traps and catch ten mice without realizing that the colony has thirty individuals that keep coming in. Without a thermal inspection or a sealing protocol, the cycle starts again the following spring.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tenants have specific options. If rodents are present in a rented unit and the landlord is slow to act, the Tribunal administratif du logement (TAL, formerly the R\u00e9gie du logement) recognizes a rodent infestation as a problem affecting the quality of the dwelling. The tenant can file an application for a rent reduction or to have work carried out. Document the signs \u2014 photos of droppings, gnaw marks, the date of written notice to the landlord \u2014 before taking any steps.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The rule of thumb is simple: one rodent caught and no ongoing signs of activity after sealing = reasonable to handle on your own. Two or more rodents, fresh signs after a week, or rodents spotted in several rooms = call an MELCCFP-certified exterminator. A professional response includes identifying the species, sealing entry points, placing secured bait stations and a follow-up 15 to 20 days later to confirm that activity has stopped.<\/p>\n\n\n\n<div class='ep-quartiers'>\n<h3>And in the neighboring neighborhoods?<\/h3>\n<ul>\n  <li><a href=\"\/en\/rosemont-exterminator\/\">Rosemont\u2013La Petite-Patrie<\/a> \u2014 green alleys and community gardens create more travel corridors for deer mice in the fall.<\/li>\n  <li><a href=\"\/en\/pest-control-villeray\/\">Villeray\u2013Saint-Michel\u2013Parc-Extension<\/a> \u2014 many triplexes with unfinished basements, frequent entry points along brick foundations.<\/li>\n  <li><a href=\"\/en\/exterminator-cote-des-neiges\/\">C\u00f4te-des-Neiges\u2013Notre-Dame-de-Gr\u00e2ce<\/a> \u2014 the proximity of Mount Royal and its woods creates constant pressure from deer mice (<em>Peromyscus maniculatus<\/em>) on homes along the edge.<\/li>\n  <li><a href=\"\/en\/exterminator-ahuntsic\/\">Ahuntsic-Cartierville<\/a> \u2014 the banks of the Rivi\u00e8re des Prairies and riverside parks encourage field rodents along the urban fringe.<\/li>\n  <li><a href=\"\/en\/exterminator-plateau-mont-royal\/\">Le Plateau-Mont-Royal<\/a> \u2014 dense old buildings with many cellars and shared passageways, ideal conditions for mice to spread from unit to unit.<\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Guide complet : mulot ou souris : comment faire la diff\u00e9rence chez soi. Calendrier, esp\u00e8ces vis\u00e9es, d\u00e9roulement, indicateurs.<\/p>","protected":false},"author":2,"featured_media":13254,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_elementor_version":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\n\n{excerpt}\n\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"fullscreen","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[24],"tags":[],"class_list":["post-14008","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-extermination-montreal"],"acf":{"faq_question_1":"Quelle est la diff\u00e9rence principale entre un mulot et une souris ?","faq_reponse_1":"Le mulot et la souris sont deux rongeurs distincts qu'il est facile de confondre. Au Qu\u00e9bec, le \u00ab mulot \u00bb est la souris sylvestre (Peromyscus maniculatus) : grandes oreilles, grands yeux noirs pro\u00e9minents et queue bicolore, \u00e0 peu pr\u00e8s aussi longue que son corps. Son pelage est brun-roux sur le dos et blanc net sur le ventre. La souris domestique (Mus musculus) est grise ou brun-gris, avec des oreilles moins grandes, des yeux plus petits et une queue uniform\u00e9ment grise et \u00e9cailleuse. Le mulot est g\u00e9n\u00e9ralement un visiteur saisonnier venu de l'ext\u00e9rieur, tandis que la souris s'installe durablement dans les habitations.","faq_question_2":"Comment savoir si j'ai un mulot ou une souris dans ma maison ?","faq_reponse_2":"Plusieurs indices permettent de les distinguer chez soi. Les crottes de mulot sont l\u00e9g\u00e8rement plus grandes et fusiformes, tandis que celles de la souris sont plus petites et cylindriques. Le mulot laisse souvent des r\u00e9serves de graines ou de noix cach\u00e9es dans des recoins, comportement typique de son instinct de stockage hivernal. La souris, elle, grignote continuellement et laisse des traces de morsures sur de nombreux mat\u00e9riaux. Si vous observez l'animal, les grandes oreilles, les yeux globuleux et le ventre blanc sont les signes distinctifs du mulot. Une pr\u00e9sence en hiver est souvent synonyme de mulot cherchant refuge contre le froid.","faq_question_3":"Le mulot est-il dangereux pour la sant\u00e9 comme la souris ?","faq_reponse_3":"Le mulot, comme la souris, peut repr\u00e9senter un risque sanitaire non n\u00e9gligeable. Il est susceptible de transmettre des maladies telles que la leptospirose, la salmonellose ou le hantavirus, principalement via ses d\u00e9jections, son urine ou sa salive. Cependant, le mulot est moins souvent porteur de parasites domestiques comme les puces adapt\u00e9es aux int\u00e9rieurs que la souris. La souris domestique, en raison de sa cohabitation prolong\u00e9e avec l'homme, est statistiquement associ\u00e9e \u00e0 davantage de contaminations alimentaires dans les habitations. Dans tous les cas, il est conseill\u00e9 de ne jamais manipuler ces rongeurs \u00e0 mains nues et de d\u00e9sinfecter les zones contamin\u00e9es.","faq_question_4":"Pourquoi les mulots entrent-ils dans les maisons ?","faq_reponse_4":"Les mulots p\u00e9n\u00e8trent g\u00e9n\u00e9ralement dans les habitations \u00e0 l'approche de l'automne et de l'hiver, lorsque les temp\u00e9ratures baissent et que les ressources alimentaires se font rares \u00e0 l'ext\u00e9rieur. Ils cherchent chaleur, abri et nourriture. Les maisons situ\u00e9es pr\u00e8s de jardins, de champs, de haies ou de zones bois\u00e9es sont particuli\u00e8rement expos\u00e9es. Les mulots s'infiltrent par de tr\u00e8s petites ouvertures, fissures dans les murs, espaces sous les portes ou conduits divers. Contrairement \u00e0 la souris qui s'installe d\u00e9finitivement, le mulot a tendance \u00e0 repartir au printemps lorsque les conditions ext\u00e9rieures redeviennent favorables. Une bonne isolation de la maison limite consid\u00e9rablement ces intrusions saisonni\u00e8res.","faq_question_5":"Quels sont les moyens naturels pour \u00e9loigner mulots et souris ?","faq_reponse_5":"Plusieurs m\u00e9thodes naturelles permettent de dissuader ces rongeurs sans recourir \u00e0 des produits chimiques. La menthe poivr\u00e9e, dont l'odeur forte repousse les rongeurs, peut \u00eatre plac\u00e9e en feuilles fra\u00eeches ou sous forme d'huile essentielle sur des cotons dans les zones \u00e0 risque. L'huile essentielle d'eucalyptus ou de clou de girofle produit un effet similaire. Boucher les fissures et les ouvertures emp\u00eache leur entr\u00e9e : laine d'acier bien compact\u00e9e puis mastic autour des tuyaux, mortier pour les fissures de fondation (jamais de laine de verre, les rongeurs y creusent). La pr\u00e9sence d'un chat constitue \u00e9galement un r\u00e9pulsif naturel efficace. Ranger soigneusement les denr\u00e9es alimentaires dans des contenants herm\u00e9tiques supprime leur source de nourriture et les incite \u00e0 quitter les lieux.","faq_question_6":"Faut-il appeler un professionnel pour se d\u00e9barrasser des mulots ou souris ?","faq_reponse_6":"Faire appel \u00e0 un professionnel de la d\u00e9ratisation est recommand\u00e9 lorsque l'infestation est importante, r\u00e9currente ou difficile \u00e0 localiser. Un expert peut identifier pr\u00e9cis\u00e9ment l'esp\u00e8ce en cause, mulot ou souris, localiser les points d'entr\u00e9e et les nids, puis mettre en place un traitement adapt\u00e9 et s\u00e9curis\u00e9 pour les habitants et les animaux domestiques. Pour une intrusion isol\u00e9e et ponctuelle, des pi\u00e8ges m\u00e9caniques non l\u00e9taux ou l\u00e9taux peuvent suffire. En revanche, si des signes de d\u00e9g\u00e2ts importants apparaissent sur les c\u00e2bles \u00e9lectriques, l'isolation ou les structures, une intervention professionnelle rapide est indispensable pour \u00e9viter tout risque suppl\u00e9mentaire."},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"Taille, oreilles, queue, crottes : distinguez le mulot (souris sylvestre) de la souris domestique \u00e0 Montr\u00e9al et scellez votre domicile cet automne.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"\u00c9quipe Extermi Pro\"\/>\n\t<meta name=\"msvalidate.01\" content=\"a58e7ff5046c6dad48bdeb8e215bea1e\" \/>\n\t<meta name=\"p:domain_verify\" content=\"a6a790a41c94a7fbb19ca8ed7b639b80\" \/>\n\t<meta name=\"yandex-verification\" content=\"a391cc8c935e6dc6\" \/>\n\t<link rel=\"canonical\" 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