{"id":56368,"date":"2026-06-02T15:16:58","date_gmt":"2026-06-02T13:16:58","guid":{"rendered":"https:\/\/www.groupe-ect.com\/biodiversity-5-priority-actions-against-invasive-alien-species\/"},"modified":"2026-06-05T13:03:58","modified_gmt":"2026-06-05T11:03:58","slug":"biodiversity-5-priority-actions-against-invasive-alien-species","status":"publish","type":"post","link":"https:\/\/www.groupe-ect.com\/en\/biodiversity-5-priority-actions-against-invasive-alien-species\/","title":{"rendered":"Biodiversity : 5 Priority Actions to Combat Invasive Alien Species"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"56368\" class=\"elementor elementor-56368 elementor-56215\" data-elementor-settings=\"{&quot;ha_cmc_init_switcher&quot;:&quot;no&quot;}\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-da2bc55 e-ecs-flex e-flex e-con-boxed e-con e-parent\" data-id=\"da2bc55\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-862fabc elementor-widget elementor-widget-heading\" data-id=\"862fabc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">EEE: a global phenomenon, a local challenge for companies\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3f17df3 e-ecs-flex e-flex e-con-boxed e-con e-parent\" data-id=\"3f17df3\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e69678b elementor-widget elementor-widget-text-editor\" data-id=\"e69678b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"article-main__content\" data-test-id=\"publishing-text-block\"><p><span class=\"\">Invasive alien species (IAS) are a recognized threat to natural environments. They represent the 4th factor in biodiversity loss worldwide.  Their presence causes exorbitant agricultural, piscicultural, ecological and sanitary damage. In March 2021, CNRS researchers published a summary of the economic costs generated by the presence of IAS worldwide. Between 1870 and 2017, the loss amounted to US$1,288 billion.<\/span><\/p><\/div><div class=\"article-main__content\" data-test-id=\"publishing-text-block\"><p><span class=\"\">For ECT, this global challenge becomes a local struggle. The initial neglect of most of the sites where we work encourages the presence and even the proliferation of IAS.  In the context of our business, the development of the site and the restoration of its natural environments require us to make the fight against IAS a priority in our action to protect biodiversity.<\/span><\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-12327dd e-ecs-flex e-flex e-con-boxed e-con e-parent\" data-id=\"12327dd\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6b987a5 elementor-widget elementor-widget-heading\" data-id=\"6b987a5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Focusing our action\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2d859d7 e-ecs-flex e-flex e-con-boxed e-con e-parent\" data-id=\"2d859d7\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7dca665 elementor-widget elementor-widget-text-editor\" data-id=\"7dca665\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"article-main__content\" data-test-id=\"publishing-text-block\"><p><span class=\"\">ECT is a player in the field: taking action. This has led the project teams &#8211; design, green spaces and operations &#8211; to innovate and transform their practices. <\/span><\/p><\/div><div class=\"article-main__content\" data-test-id=\"publishing-text-block\"><p><span class=\"\">Because of their frequency on the sites of our development projects, ECT has defined three priority EEE targets:<\/span><\/p><\/div><div class=\"article-main__content\" data-test-id=\"publishing-text-block\"><ul><li>Asian knotweed, Reynoutria japonica and Reynoutria sachalinensis<\/li><li>Spanish Sainfoin, <span class=\"italic\" style=\"font-size: 16px;\">Galega officinalis<\/span><\/li><li>Butterfly tree, <span class=\"italic\" style=\"font-size: 16px;\">Buddleja davidii<\/span><\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c8324cd e-ecs-flex e-flex e-con-boxed e-con e-parent\" data-id=\"c8324cd\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2e92f7a elementor-widget elementor-widget-heading\" data-id=\"2e92f7a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">5 steps to action<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c2596b2 e-ecs-flex e-flex e-con-boxed e-con e-parent\" data-id=\"c2596b2\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-78741ec elementor-widget elementor-widget-text-editor\" data-id=\"78741ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"article-main__content\" data-test-id=\"publishing-text-block\"><p><span class=\"\">We are implementing a 5-action control plan for these species and all IAS:<\/span><\/p><\/div><div class=\"article-main__content\" data-test-id=\"publishing-text-block\"><ol><li><span class=\"\"><strong>Identify IAS present on site: <\/strong>map their locations and mark out areas to be treated with protective netting.<\/span><\/li><li><strong>Define the control strategy: <\/strong>depending on the species identified, the context of the site, its relief, the existing vegetation and the future use of the development.<\/li><li><strong>Neutralize their installation by uprooting:<\/strong> flush-cutting and bagging, terracing and placing in deep crates.<\/li><li><strong>Contain plants that can&#8217;t be removed: favour<\/strong>competition, especially for light. Plant fast-growing local species on certain slopes, such as black alder and common hazel. Also encourage the development of brambles. Finally, seed open spaces to prevent new germination.   <\/li><li><strong>Monitor the arrival of IAS:<\/strong> train in-house teams, green spaces and operations teams, who are present on site every day.<\/li><\/ol><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-78891ea e-ecs-flex e-flex e-con-boxed e-con e-parent\" data-id=\"78891ea\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0d2997f elementor-widget elementor-widget-heading\" data-id=\"0d2997f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">  Innovations, exchanges and feedback\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6c4be58 e-ecs-flex e-flex e-con-boxed e-con e-parent\" data-id=\"6c4be58\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-30cfc93 elementor-widget elementor-widget-text-editor\" data-id=\"30cfc93\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-start=\"56\" data-end=\"208\">These actions are directly in line with the National Plan to combat invasive species, implemented by the French Office for Biodiversity. They are the subject of regular internal feedback. These exchanges involve ecologists, local authorities and other stakeholders in our projects. They are also part of our partnership with Humanit\u00e9 et Biodiversit\u00e9.   <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c28fedf e-ecs-flex e-flex e-con-boxed e-con e-parent\" data-id=\"c28fedf\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-037d8f1 elementor-widget elementor-widget-heading\" data-id=\"037d8f1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Example: Giant Hogweed in Mazingarbe<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c79bfc1 e-ecs-flex e-flex e-con-boxed e-con e-parent\" data-id=\"c79bfc1\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3ab23ae elementor-widget elementor-widget-text-editor\" data-id=\"3ab23ae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Giant hogweed (Heracleum mantegazzianum) is a large, invasive exotic species that rapidly colonizes open, damp environments. It competes strongly with local vegetation and can present a health risk by causing severe skin burns in the event of contact with its sap. <\/p><p>On the <span style=\"text-decoration: underline;\"><a href=\"https:\/\/www.groupe-ect.com\/en\/realisations\/at-the-foot-of-slag-heap-49-transform-a-damaged-site-into-a-forest-and-seed-orchard\/\" target=\"_blank\" rel=\"noopener\">ECT site in Mazingarbe<\/a><\/span>management operations have been carried out to remove this species and limit its spread:<\/p><ul><li>Removal of existing plants<\/li><li>Covering with inert soil to limit regrowth<\/li><li>Regular monitoring to detect and eliminate new growth<\/li><\/ul><p>Today, in partnership with the <span class=\"_0c1107c2\">Conservatoire d&#8217;espaces naturels des Hauts-de-France<\/span> and <span class=\"_0c1107c2\">Espaces Naturels R\u00e9gionaux (ENRx)<\/span>, the rehabilitation of the site is complete: a seed orchard protected by a forest area was planted this winter.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-520d4e9 e-ecs-flex e-flex e-con-boxed e-con e-parent\" data-id=\"520d4e9\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-2768902 e-con-full e-ecs-flex e-flex e-con e-child\" data-id=\"2768902\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ed26896 elementor-widget elementor-widget-image\" data-id=\"ed26896\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.groupe-ect.com\/wp-content\/uploads\/2026\/06\/Avant-Berce-du-Caucase-2-1024x1024.png\" class=\"attachment-large size-large wp-image-56226\" alt=\"\" srcset=\"https:\/\/www.groupe-ect.com\/wp-content\/uploads\/2026\/06\/Avant-Berce-du-Caucase-2-1024x1024.png 1024w, https:\/\/www.groupe-ect.com\/wp-content\/uploads\/2026\/06\/Avant-Berce-du-Caucase-2-300x300.png 300w, https:\/\/www.groupe-ect.com\/wp-content\/uploads\/2026\/06\/Avant-Berce-du-Caucase-2-150x150.png 150w, https:\/\/www.groupe-ect.com\/wp-content\/uploads\/2026\/06\/Avant-Berce-du-Caucase-2-768x768.png 768w, https:\/\/www.groupe-ect.com\/wp-content\/uploads\/2026\/06\/Avant-Berce-du-Caucase-2.png 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Avant - site de Mazingarbe - Berce du Caucase<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-728d4f4 e-con-full e-ecs-flex e-flex e-con e-child\" data-id=\"728d4f4\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ecs_container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c343866 elementor-widget elementor-widget-image\" data-id=\"c343866\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.groupe-ect.com\/wp-content\/uploads\/2026\/06\/Apres-Berce-du-Caucase-1-1024x1024.png\" class=\"attachment-large size-large wp-image-56224\" alt=\"\" srcset=\"https:\/\/www.groupe-ect.com\/wp-content\/uploads\/2026\/06\/Apres-Berce-du-Caucase-1-1024x1024.png 1024w, https:\/\/www.groupe-ect.com\/wp-content\/uploads\/2026\/06\/Apres-Berce-du-Caucase-1-300x300.png 300w, https:\/\/www.groupe-ect.com\/wp-content\/uploads\/2026\/06\/Apres-Berce-du-Caucase-1-150x150.png 150w, https:\/\/www.groupe-ect.com\/wp-content\/uploads\/2026\/06\/Apres-Berce-du-Caucase-1-768x768.png 768w, https:\/\/www.groupe-ect.com\/wp-content\/uploads\/2026\/06\/Apres-Berce-du-Caucase-1.png 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Apr\u00e8s<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>IAS : a global phenomenon, a local challenge for companies Invasive alien species (IAS) are a recognized threat to natural habitats. They are the fourth leading cause of biodiversity loss worldwide. Their presence causes exorbitant damage to agriculture, fisheries, the environment, and public health. In March 2021, researchers from the CNRS published a summary of the economic costs caused by the presence of IAS worldwide. Between 1870 and 2017, the damage is estimated at 1.288 trillion U.S. dollars. This global challenge translates into a local struggle for ECT. The initial abandonment of most of the sites where we operate facilitates<\/p>\n","protected":false},"author":19,"featured_media":40526,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ngg_post_thumbnail":0,"footnotes":""},"categories":[356],"tags":[],"departements":[],"agences":[],"class_list":["post-56368","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-expert-content"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Controlling invasive alien species - ECT Group<\/title>\n<meta name=\"description\" content=\"Combating invasive alien species is a key challenge for biodiversity. 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