{"id":32736,"date":"2026-05-19T17:28:57","date_gmt":"2026-05-19T21:28:57","guid":{"rendered":"https:\/\/www.novaextermination.com\/extermination\/german-cockroaches\/"},"modified":"2026-07-20T12:30:46","modified_gmt":"2026-07-20T16:30:46","slug":"german-cockroaches","status":"publish","type":"extermination","link":"https:\/\/www.novaextermination.com\/en\/extermination\/german-cockroaches\/","title":{"rendered":"German cockroaches"},"content":{"rendered":"\n<!--NOVA_RATING_START--><div class=\"nova-rating-src\" hidden=\"\"><a href=\"https:\/\/search.google.com\/local\/reviews?placeid=ChIJrwH6caP-yEwR6PfHI875QhI\" target=\"_blank\" rel=\"noopener nofollow\" class=\"nova-rating-link\"><span class=\"rstars\">\u2605\u2605\u2605\u2605\u2605<\/span><span class=\"rtext\">4.9\/5 \u2022 203 Google reviews<\/span><\/a><\/div><style>.nova-rating-hero<span>text-align:center;margin:12px auto 4px;position:relative;z-index:3.nova-rating-hero .nova-rating-link<span>text-decoration:none;display:inline-block.nova-rating-hero .rstars<span>font-size:27px;letter-spacing:4px;line-height:1;filter:drop-shadow(0 1px 3px rgba(0,0,0,.5)).nova-rating-hero .rstars,.nova-hero-live .nova-rating-hero .rstars<span>color:#FBBC05!important.nova-rating-hero .rtext<span>display:block;color:#fff;font-weight:700;font-size:16px;margin-top:5px;text-shadow:0 1px 5px rgba(0,0,0,.6)<\/style><script>(function(){var S=document.querySelectorAll('.nova-rating-src');var node=S[S.length-1];if(!node)return;function init()<span>if(node.__rdone)return;var h1=document.querySelector('h1');if(!h1)return;node.__rdone=1;var b=document.createElement('div');b.className='nova-rating-hero';b.innerHTML=node.innerHTML;var anchor=h1.closest('.elementor-widget')||h1;anchor.parentNode.insertBefore(b,anchor.nextSibling);if(document.readyState!=='loading')init();else document.addEventListener('DOMContentLoaded',init);window.addEventListener('load',init);})();<\/script><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\/\", \"@type\": \"Product\", \"name\": \"Blattes germaniques\", \"description\": \"Service d'extermination : Blattes germaniques. Nova Extermination, exterminateur certifie sur la Rive-Sud de Montreal et en Monteregie.\", \"brand\": <span>\"@type\": \"Brand\", \"name\": \"Nova Extermination\", \"aggregateRating\": <span>\"@type\": \"AggregateRating\", \"ratingValue\": \"4.9\", \"reviewCount\": \"203\", \"bestRating\": \"5\", \"worstRating\": \"1\"<\/script><!--NOVA_RATING_END-->\n<p>Contaminates food, carries more than 30 pathogenic bacteria (e. coli, salmonella, staphylococcus), causes allergies and asthma in exposed children, defect classified as a major infestation in restaurants.<\/p>\n<p>Nova Extermination treats the German cockroach (<em>Blattella germanica<\/em>) on the South Shore of Montreal, with a protocol adapted to the biological cycle of the species and a guarantee adapted to the case. License RBQ 5734 75930 01. <\/p>\n<h2>How to recognize the German cockroach<\/h2>\n<p>Correctly identifying the pest is the first step in a long-lasting treatment. Incorrect identification, for example confusing German cockroach and oriental cockroach or confusing native ladybug and Asian ladybug, leads to inappropriate treatment and recurrence within a few weeks. If you are hesitating, compare it with our fact sheet on <a href=\"https:\/\/www.novaextermination.com\/en\/insects\/cockroach\/\">cockroach extermination<\/a> or send us a photo by text at 514 666 6682.  <\/p>\n<h3>Quick Identification Sheet<\/h3>\n<table class=\"nova-id-card\">\n<tbody>\n<tr>\n<td><strong>Small in appearance<\/strong><\/td>\n<td>, 1-1.5 cm as an adult, pale brown with two dark longitudinal bands behind the head<\/td>\n<\/tr>\n<tr>\n<td><strong>Preferred habitat<\/strong><\/td>\n<td>hides during the day, goes out at night, prefers warm and humid areas (kitchens, bathrooms, behind appliances, in cracks in countertops)<\/td>\n<\/tr>\n<tr>\n<td><strong><\/strong><\/td>\n<td>Ultra-fast life cycle: a female produces about 30 nymphs every 3 to 4 weeks, up to 6 litters in her lifetime, which means that the population doubles every month without treatment<\/td>\n<\/tr>\n<tr>\n<td><strong>Typical damage<\/strong><\/td>\n<td>contaminates food, carries more than 30 pathogenic bacteria (E. coli, salmonella, staphylococcus), causes allergies and asthma in exposed children, defect classified as a major infestation in restaurants<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Store a dead specimen in a closed plastic bag if possible. Our technician confirms the species at the beginning of the visit, which determines the protocol and duration of the treatment. <\/p>\n<h2>Signs of an active infestation<\/h2>\n<ul>\n<li>Presence of live individuals during the day (usually a sign of an established infestation)<\/li>\n<li>Moulting, exuviae or corpses found in the nooks and crannies<\/li>\n<li>Eggs or egg capsules (for cockroaches, mealworms)<\/li>\n<li>Persistent characteristic smell (cockroaches, bedbugs)<\/li>\n<li>Traces of droppings on storage areas<\/li>\n<li>For biters (mosquitoes, bedbugs): recent skin marks on occupants<\/li>\n<\/ul>\n<p>The earlier the diagnosis, the less treatment costs. An infestation detected in 5 individuals can be treated in 1 visit. With 50 individuals, count 2 to 3 visits.  <\/p>\n<h2>Life cycle and spread<\/h2>\n<p>Ultra-fast cycle: a female produces about 30 nymphs every 3 to 4 weeks, up to 6 litters in her lifetime, which means that the population doubles every month without treatment.<\/p>\n<p>Understanding this cycle is essential: a treatment that covers only adults (e.g. a surface sprayer) leaves the eggs intact. Two weeks later, the infestation resumed. Our protocol covers THE entire incubation period, which explains the follow-up visit provided for in the package.  <\/p>\n<h2>Our treatment method<\/h2>\n<p>Long-acting attractant gel applied in cracks and passage points (more effective than the sprayer, which disperses the colony), inspection of appliances, coordinated treatment with condo neighbours.<\/p>\n<p><strong>Total duration:<\/strong> initial treatment 1 h, follow-up at 14 days, final control at 6 weeks.<\/p>\n<h3>Why we avoid aggressive spraying<\/h3>\n<p>A wide spray may seem effective, but it disperses the colony to other areas (repulsion effect) and complicates the final treatment. Our approach: targeted bait in gel or in stations, residual treatment only where necessary, and zero product on food preparation or coating surfaces. <\/p>\n<h2>Underwriting and Inspection<\/h2>\n<p>Here are the service variants we offer for this need:<\/p>\n<ul>\n<li>Residential treatment 1 bedroom + 1 kitchen<\/li>\n<li>Full accommodation (2 visits included)<\/li>\n<li>Restaurant or grocery store (monthly contract)<\/li>\n<\/ul>\n<h3>What influences the quote<\/h3>\n<ul>\n<li>Surface or volume to be treated<\/li>\n<li>Extent of the infestation or situation<\/li>\n<li>Accessibility of the areas concerned<\/li>\n<li>Response time requested (planned or emergency)<\/li>\n<li>Scope of the desired warranty<\/li>\n<li>Documentation required for insurer, notary or audit<\/li>\n<\/ul>\n<p>The inspection is <strong>non-binding<\/strong>. We evaluate on site (or by phone as the case may be) and give you a written estimate adapted to your building before any work begins. No unpleasant surprises at the end.  <\/p>\n<h2>What you can do before our tour<\/h2>\n<ul>\n<li><strong>Do not use any aerosol products<\/strong> in infested areas: this disperses insects and distorts our diagnosis<\/li>\n<li><strong>Do not move furniture<\/strong> or appliances (technicians want to see them in their normal position)<\/li>\n<li><strong>Store a dead specimen<\/strong> in a closed plastic bag to confirm the species<\/li>\n<li><strong>Note where and when<\/strong> you observe insects (useful for targeting treatment)<\/li>\n<li><strong>For bed bugs specifically<\/strong> : do not throw away the mattress before we come, this complicates the quote and can spread the infestation<\/li>\n<\/ul>\n<h2>Common mistakes to avoid<\/h2>\n<ul>\n<li><strong>Buy consumer products<\/strong> : they kill a few visible adults but are rarely effective over the entire cycle<\/li>\n<li><strong>Multiplying home treatments<\/strong> : creates resistance in certain populations, complicates our protocols afterwards<\/li>\n<li><strong>Wait for it to pass<\/strong> : the population doubles every 28 days for most species, the cost of treatment too<\/li>\n<li><strong>Do not report to neighbours<\/strong> (in condominiums or triplexes): the infestation returns if neighbouring units are not treated<\/li>\n<\/ul>\n<h2>Questions<\/h2>\n<h3>Why are German cockroaches resistant to commercial insecticides?<\/h3>\n<p>This species has developed genetic resistance to several common molecules (pyrethroids, organophosphates) after decades of massive use. Our professional gels use different active ingredients (fipronil, hydramethylnone, indoxacarb) in rotation to avoid this resistance. <\/p>\n<h3>My neighbor has German cockroaches, should I be worried?<\/h3>\n<p>Yes, especially in condominiums or multiplexes. This species migrates through technical passages (pipes, electrical ducts). Coordinated treatment of adjacent units is often more effective than isolated treatments.  <\/p>\n<h3>Does the treatment also clean the eggs?<\/h3>\n<p>Professional gel kills nymphs that hatch by eating the bait brought back to the nest. A 14-day follow-up visit confirms the elimination of the full cycle. <\/p>\n<h3>Should the home be evacuated during treatment?<\/h3>\n<p>No. The gel is applied in cracks and areas inaccessible to children and pets. No occupancy restrictions.  <\/p>\n<h3>How long before the German cockroach is totally eliminated?<\/h3>\n<p>Allow 2 to 6 weeks depending on the species&#8217; cycle. A visible reduction appears from the first week. Complete elimination occurs after all the eggs present have hatched and the second wave has been treated.  <\/p>\n<h3>What exactly does the written warranty cover?<\/h3>\n<p>Recurrence of the same species in the treated area during the indicated period (typically 60 to 90 days for the German cockroach). If the infestation returns, we schedule a follow-up according to the conditions of your warranty. <\/p>\n<h2>Contact Nova Extermination<\/h2>\n<p>Inspection within 24 hours, quick intervention. Intervention the next day. Coverage assessed on a case-by-case basis, depending on the condition of the building. Call <strong>514 666 6682<\/strong> or fill out the contact form for German cockroach treatment.   <\/p>\n<p><small>Nova Extermination, RBQ license 5734 75930 01. Service 7 days a week, including public holidays. Health Canada Licensed Products.  <\/small><\/p>\n\n<!--NOVA_FAQ_START--><style>.nova-faq<span>max-width:900px;margin:44px auto;padding:0 16px;font-family:'Inter',sans-serif.nova-faq__title<span>font-family:'Montserrat',sans-serif;font-size:28px;font-weight:700;color:#BF1E2E;text-align:center;margin:0 0 26px.nova-faq__item<span>border:1px solid #ececec;border-radius:10px;margin-bottom:12px;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.04);overflow:hidden.nova-faq__item[open]<span>box-shadow:0 6px 18px rgba(0,0,0,.09).nova-faq__q<span>font-family:'Montserrat',sans-serif;font-weight:600;font-size:17px;color:#1a1a1a;padding:18px 52px 18px 20px;cursor:pointer;list-style:none;position:relative.nova-faq__q::-webkit-details-marker<span>display:none.nova-faq__q::after<span>content:'+';position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:26px;line-height:1;color:#BF1E2E;font-weight:400;transition:transform .2s.nova-faq__item[open] .nova-faq__q::after<span>content:'\\2212'.nova-faq__a<span>padding:2px 20px 20px;color:#444;font-size:16px;line-height:1.65.nova-faq__a p<span>margin:0\/* remplace la FAQ generique du gabarit sur les pages de service *\/.elementor-element-a5f60a6<span>display:none!important<\/style><section class=\"nova-faq\" aria-label=\"Foire aux questions\"><h2 class=\"nova-faq__title\">Frequently Asked Questions: German Cockroaches<\/h2><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">What distinguishes the German cockroach compared to other cockroaches?<\/summary><div class=\"nova-faq__a\"><p>The German cockroach is small (about 1.5 cm), light brown, with two parallel dark stripes behind the head; It is the most common species inside buildings. It reproduces extremely quickly and concentrates in kitchens and bathrooms, near heat and humidity. In Longueuil and Brossard, it is often found in the kitchens of homes and restaurants.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">Why does the German cockroach spread so quickly?<\/summary><div class=\"nova-faq__a\"><p>A single ootheca can contain dozens of eggs and the female carries it until hatching, which protects the new generation; The reproductive cycle is very short. They slip into cracks, appliances and hot motors, easily dispersing throughout a building. This rapid proliferation makes professional treatment almost indispensable.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">Is German cockroach a health risk?<\/summary><div class=\"nova-faq__a\"><p>Yes, by circulating between waste and food surfaces, it can carry bacteria and contaminate food. Its feces, moults and secretions are also recognized allergens that can aggravate asthma, especially in children. An infestation in the kitchen must therefore be taken seriously.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">How is a German cockroach treatment performed?<\/summary><div class=\"nova-faq__a\"><p>Our technician inspects the hotbeds (kitchen, bathroom, appliances) and applies an approved gel bait combined with targeted treatments in the cracks. Because the eggs are protected in the ootheca, follow-up is usually required to treat new generations. We give you preparation instructions to optimize efficiency.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">How much does a German cockroach treatment cost?<\/summary><div class=\"nova-faq__a\"><p>The price is based on an assessment, depending on the extent of the situation and the number of follow-up visits required. In a building, the infestation can affect several units, which influences the price and requires an inspection. The amount is communicated to you before the work, our services being paid.  <\/p><\/div><\/details><details class=\"nova-faq__item\"><summary class=\"nova-faq__q\">Can a German cockroach infestation be completely eliminated?<\/summary><div class=\"nova-faq__a\"><p>We aim for sustainable results evaluated on a case-by-case basis, with follow-up to treat generations from eggs after the first visit. In collective housing, success also depends on the treatment of neighbouring units and the collaboration of the occupants in the preparation. Our technician explains realistic measures for long-term control rather than an absolute promise.  <\/p><\/div><\/details><\/section><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Qu'est-ce qui caract\u00e9rise la blatte germanique par rapport aux autres coquerelles?\", \"acceptedAnswer\": <span>\"@type\": \"Answer\", \"text\": \"La blatte germanique est petite (environ 1,5 cm), brun clair, avec deux bandes fonc\u00e9es parall\u00e8les derri\u00e8re la t\u00eate; c'est l'esp\u00e8ce la plus fr\u00e9quente \u00e0 l'int\u00e9rieur des b\u00e2timents. Elle se reproduit extr\u00eamement vite et se concentre dans les cuisines et salles de bain, pr\u00e8s de la chaleur et de l'humidit\u00e9. \u00c0 Longueuil et \u00e0 Brossard, on la retrouve souvent dans les cuisines de logements et de restaurants.\", {\"@type\": \"Question\", \"name\": \"Pourquoi la blatte germanique se propage-t-elle aussi rapidement?\", \"acceptedAnswer\": <span>\"@type\": \"Answer\", \"text\": \"Une seule ooth\u00e8que peut contenir des dizaines d'oeufs et la femelle la porte jusqu'\u00e0 l'\u00e9closion, ce qui prot\u00e8ge la nouvelle g\u00e9n\u00e9ration; le cycle de reproduction est tr\u00e8s court. Elles se glissent dans les fissures, les \u00e9lectrom\u00e9nagers et les moteurs chauds, se dispersant facilement dans un immeuble. Cette prolif\u00e9ration rapide rend un traitement professionnel presque indispensable.\", {\"@type\": \"Question\", \"name\": \"La blatte germanique pr\u00e9sente-t-elle un risque pour la sant\u00e9?\", \"acceptedAnswer\": <span>\"@type\": \"Answer\", \"text\": \"Oui, en circulant entre les d\u00e9chets et les surfaces alimentaires, elle peut transporter des bact\u00e9ries et contaminer la nourriture. Ses excr\u00e9ments, mues et s\u00e9cr\u00e9tions sont aussi des allerg\u00e8nes reconnus pouvant aggraver l'asthme, surtout chez les enfants. Une infestation en cuisine doit donc \u00eatre prise au s\u00e9rieux.\", {\"@type\": \"Question\", \"name\": \"Comment se d\u00e9roule un traitement contre la blatte germanique?\", \"acceptedAnswer\": <span>\"@type\": \"Answer\", \"text\": \"Notre technicien inspecte les foyers d'activit\u00e9 (cuisine, salle de bain, \u00e9lectrom\u00e9nagers) et applique un app\u00e2tage en gel homologu\u00e9 combin\u00e9 \u00e0 des traitements cibl\u00e9s dans les fissures. Comme les oeufs sont prot\u00e9g\u00e9s dans l'ooth\u00e8que, un suivi est habituellement n\u00e9cessaire pour traiter les nouvelles g\u00e9n\u00e9rations. Nous vous remettons des consignes de pr\u00e9paration pour optimiser l'efficacit\u00e9.\", {\"@type\": \"Question\", \"name\": \"Combien co\u00fbte un traitement contre les blattes germaniques?\", \"acceptedAnswer\": <span>\"@type\": \"Answer\", \"text\": \"Le prix est \u00e9tabli sur \u00e9valuation, selon l'ampleur de la situation et le nombre de visites de suivi requises. Dans un immeuble, l'infestation peut toucher plusieurs unit\u00e9s, ce qui influence le tarif et n\u00e9cessite une inspection. Le montant vous est communiqu\u00e9 avant les travaux, nos services \u00e9tant payants.\", {\"@type\": \"Question\", \"name\": \"Peut-on \u00e9liminer compl\u00e8tement une infestation de blattes germaniques?\", \"acceptedAnswer\": <span>\"@type\": \"Answer\", \"text\": \"Nous visons des r\u00e9sultats durables \u00e9valu\u00e9s au cas par cas, avec un suivi pour traiter les g\u00e9n\u00e9rations issues des oeufs apr\u00e8s la premi\u00e8re visite. En logement collectif, la r\u00e9ussite d\u00e9pend aussi du traitement des unit\u00e9s voisines et de la collaboration des occupants pour la pr\u00e9paration. Notre technicien vous explique les mesures r\u00e9alistes pour un contr\u00f4le durable plut\u00f4t qu'une promesse absolue.\"]}<\/script><!--NOVA_FAQ_END-->\n","protected":false},"excerpt":{"rendered":"<p>Elimination of German cockroaches with targeted professional gel, follow-up at 14 days, coordinated treatment in co-ownership to avoid migration between units.<\/p>\n","protected":false},"featured_media":30334,"template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"yasr_overall_rating":0,"yasr_post_is_review":"","yasr_auto_insert_disabled":"","yasr_review_type":""},"extermination_animaux":[],"class_list":["post-32736","extermination","type-extermination","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>German Cockroach Extermination | Nova Extermination | South Shore<\/title>\n<meta name=\"description\" content=\"Extermination of German cockroaches (Blattella germanica) on the South Shore. 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