{"id":6475,"date":"2023-12-05T23:56:56","date_gmt":"2023-12-05T10:56:56","guid":{"rendered":"https:\/\/www.unitec.ac.nz\/epress\/?page_id=6475"},"modified":"2025-10-03T11:12:37","modified_gmt":"2025-10-02T22:12:37","slug":"chineseknotweed-nz","status":"publish","type":"page","link":"https:\/\/www.unitec.ac.nz\/epress\/index.php\/perspectives-in-biosecurity\/volumes\/2023-8\/chineseknotweed-nz\/","title":{"rendered":"Perspectives in Biosecurity | 2023 | Volume 8 | pp 56\u201366"},"content":{"rendered":"<nav class=\"is-responsive wp-block-navigation is-layout-flex wp-block-navigation-is-layout-flex\" aria-label=\"Perspectives in Biosecurity\" \n\t\t data-wp-interactive=\"core\/navigation\" data-wp-context='{\"overlayOpenedBy\":{\"click\":false,\"hover\":false,\"focus\":false},\"type\":\"overlay\",\"roleAttribute\":\"\",\"ariaLabel\":\"Menu\"}'><button aria-haspopup=\"dialog\" aria-label=\"Open menu\" class=\"wp-block-navigation__responsive-container-open\" \n\t\t\t\tdata-wp-on--click=\"actions.openMenuOnClick\"\n\t\t\t\tdata-wp-on--keydown=\"actions.handleMenuKeydown\"\n\t\t\t><svg width=\"24\" height=\"24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" aria-hidden=\"true\" focusable=\"false\"><path d=\"M4 7.5h16v1.5H4z\"><\/path><path d=\"M4 15h16v1.5H4z\"><\/path><\/svg><\/button>\n\t\t\t\t<div class=\"wp-block-navigation__responsive-container\"  id=\"modal-1\" \n\t\t\t\tdata-wp-class--has-modal-open=\"state.isMenuOpen\"\n\t\t\t\tdata-wp-class--is-menu-open=\"state.isMenuOpen\"\n\t\t\t\tdata-wp-watch=\"callbacks.initMenu\"\n\t\t\t\tdata-wp-on--keydown=\"actions.handleMenuKeydown\"\n\t\t\t\tdata-wp-on--focusout=\"actions.handleMenuFocusout\"\n\t\t\t\ttabindex=\"-1\"\n\t\t\t>\n\t\t\t\t\t<div class=\"wp-block-navigation__responsive-close\" tabindex=\"-1\">\n\t\t\t\t\t\t<div class=\"wp-block-navigation__responsive-dialog\" \n\t\t\t\tdata-wp-bind--aria-modal=\"state.ariaModal\"\n\t\t\t\tdata-wp-bind--aria-label=\"state.ariaLabel\"\n\t\t\t\tdata-wp-bind--role=\"state.roleAttribute\"\n\t\t\t>\n\t\t\t\t\t\t\t<button aria-label=\"Close menu\" class=\"wp-block-navigation__responsive-container-close\" \n\t\t\t\tdata-wp-on--click=\"actions.closeMenuOnClick\"\n\t\t\t><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\" width=\"24\" height=\"24\" aria-hidden=\"true\" focusable=\"false\"><path d=\"m13.06 12 6.47-6.47-1.06-1.06L12 10.94 5.53 4.47 4.47 5.53 10.94 12l-6.47 6.47 1.06 1.06L12 13.06l6.47 6.47 1.06-1.06L13.06 12Z\"><\/path><\/svg><\/button>\n\t\t\t\t\t\t\t<div class=\"wp-block-navigation__responsive-container-content\" \n\t\t\t\tdata-wp-watch=\"callbacks.focusFirstElement\"\n\t\t\t id=\"modal-1-content\">\n\t\t\t\t\t\t\t\t<ul class=\"wp-block-navigation__container is-responsive wp-block-navigation\"><li class=\" wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/www.unitec.ac.nz\/epress\/index.php\/perspectives-in-biosecurity\/\"><span class=\"wp-block-navigation-item__label\">Home PBS |<\/span><\/a><\/li><li class=\" wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/www.unitec.ac.nz\/epress\/index.php\/perspectives-in-biosecurity\/editorial-board\/\"><span class=\"wp-block-navigation-item__label\">Editorial Board |<\/span><\/a><\/li><li class=\" wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/www.unitec.ac.nz\/epress\/index.php\/perspectives-in-biosecurity\/author-guidelines\/\"><span class=\"wp-block-navigation-item__label\">Author Guidelines |<\/span><\/a><\/li><li class=\" wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/www.unitec.ac.nz\/epress\/index.php\/perspectives-in-biosecurity\/volumes\/\"><span class=\"wp-block-navigation-item__label\">Articles |<\/span><\/a><\/li><li class=\" wp-block-navigation-item wp-block-navigation-link\"><a class=\"wp-block-navigation-item__content\"  href=\"https:\/\/www.unitec.ac.nz\/epress\/index.php\/perspectives-in-biosecurity\/editorial-board\/\"><span class=\"wp-block-navigation-item__label\">Contact Us<\/span><\/a><\/li><\/ul>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div><\/nav>\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Short Communication<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-right\"><a href=\"https:\/\/www.unitec.ac.nz\/epress\/index.php\/perspectives-in-biosecurity\/volumes\/2023-8\/\" data-type=\"page\" data-id=\"6027\">Volume 8, Issue 1<\/a><\/p>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Seed viability of <em>Persicaria chinensis<\/em> (L.) H.Gross in Aotearoa \/ New Zealand<\/h2>\n\n\n\n<p>Carol Elliott<sup>1, *<\/sup>, Lydia Starr<sup>2<\/sup><br><br>Affiliations:<br>1 Plant Health and Environment Laboratory, Ministry for Primary Industries, 231 Morrin Rd, Saint Johns, Auckland, New Zealand,<br>2 Pest Plants, Auckland Council, 135 Albert Street, Auckland, New Zealand<br>* corresponding author: <a rel=\"noreferrer noopener\" href=\"mailto:carol.elliott@mpi.govt.nz\" target=\"_blank\">carol.elliott@mpi.govt.nz<\/a><br><br>Received: 16 October 2023 | Accepted: 27 November 2023 | Published: 11 December 2023<br>Senior Editor: Dan Blanchon<br><a href=\"https:\/\/doi.org\/10.34074\/pibs.00805\">https:\/\/doi.org\/10.34074\/pibs.00805<\/a><\/p>\n\n\n\n<p class=\"has-text-align-right\"><a href=\"https:\/\/www.unitec.ac.nz\/epress\/wp-content\/uploads\/2023\/12\/PBS-Elliot-n-Star-2023.pdf\" data-type=\"attachment\" data-id=\"6515\">Download PDF<\/a><\/p>\n\n\n\n<p><strong>Abstract:<\/strong><br>The pest plant <em>Persicaria chinensis<\/em> (Chinese knotweed) is an unwanted organism under the Biosecurity Act 1993 and is listed on the Ministry for Primary Industries (MPI) Official New Zealand Pest Register (ONZPR). Chinese knotweed is currently managed through a species-led eradication programme in T\u0101maki Makaurau \/ Auckland. In Aotearoa \/ New Zealand it is believed Chinese knotweed is spread by vegetative means; however, little is known about the viability of the seeds and their role in distribution. This study examined the viability of Chinese knotweed seeds in Aotearoa \/ New Zealand. Sixteen fruit were used in a simple germination test that was set up to determine viability of the seeds. The results showed that the seeds are viable and under ideal conditions the seeds will germinate. Locations in T\u0101maki Makaurau \/ Auckland are mostly evidenced as human induced; however, there is circumstantial evidence that suggests dispersal by birds may also be likely.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-small-font-size\"><strong>Cite as<\/strong><br>Elliott, C., Starr, L. (2023). Seed viability of <em>Persicaria chinensis<\/em> (L.) H.Gross in Aotearoa \/ New Zealand. <em>Perspectives in Biosecurity<\/em>, 8: 56\u201366. <a href=\"https:\/\/doi.org\/10.34074\/pibs.00805\">https:\/\/doi.org\/10.34074\/pibs.00805<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Short Communication Volume 8, Issue 1 Seed viability of Persicaria chinensis (L.) H.Gross in Aotearoa \/ New Zealand Carol Elliott1, *, Lydia Starr2 Affiliations:1 Plant Health and Environment Laboratory, Ministry for Primary Industries, 231 Morrin Rd, Saint Johns, Auckland, New&#8230; <a class=\"more-link\" href=\"https:\/\/www.unitec.ac.nz\/epress\/index.php\/perspectives-in-biosecurity\/volumes\/2023-8\/chineseknotweed-nz\/\">Continue Reading &rarr;<\/a><\/p>\n","protected":false},"author":12,"featured_media":0,"parent":6027,"menu_order":4,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-6475","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.unitec.ac.nz\/epress\/index.php\/wp-json\/wp\/v2\/pages\/6475","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.unitec.ac.nz\/epress\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.unitec.ac.nz\/epress\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.unitec.ac.nz\/epress\/index.php\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.unitec.ac.nz\/epress\/index.php\/wp-json\/wp\/v2\/comments?post=6475"}],"version-history":[{"count":10,"href":"https:\/\/www.unitec.ac.nz\/epress\/index.php\/wp-json\/wp\/v2\/pages\/6475\/revisions"}],"predecessor-version":[{"id":7559,"href":"https:\/\/www.unitec.ac.nz\/epress\/index.php\/wp-json\/wp\/v2\/pages\/6475\/revisions\/7559"}],"up":[{"embeddable":true,"href":"https:\/\/www.unitec.ac.nz\/epress\/index.php\/wp-json\/wp\/v2\/pages\/6027"}],"wp:attachment":[{"href":"https:\/\/www.unitec.ac.nz\/epress\/index.php\/wp-json\/wp\/v2\/media?parent=6475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}