{"id":12471,"date":"2019-02-26T18:20:17","date_gmt":"2019-02-26T17:20:17","guid":{"rendered":"https:\/\/www.plantenplagen.nl\/plantenplagen\/forsythia\/"},"modified":"2024-01-13T16:07:04","modified_gmt":"2024-01-13T15:07:04","slug":"forsythia","status":"publish","type":"encyclopedia","link":"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/forsythia\/","title":{"rendered":"Forsythia"},"content":{"rendered":"<div class=\"wpb-content-wrapper\" id=\"wpb-content-root\"><p>[vc_row][vc_column width=&rdquo;2\/3&Prime;][vc_column_text el_id=&rdquo;topentry&rdquo; el_class=&rdquo;topentry&rdquo;]Forsythia blooms as early as March with yellow flowers along the bare branches. The shrub can grow over three meter tall and wide.<!--more-->[\/vc_column_text][\/vc_column][vc_column width=&rdquo;1\/3&Prime;][vc_column_text el_class=&rdquo;entrytxt&rdquo;]<em>Also known as:<\/em><br>\nCrown gall[\/vc_column_text][\/vc_column][\/vc_row][vc_row content_placement=&rdquo;middle&rdquo; css=&rdquo;.vc_custom_1627123481876{padding-top: 0px !important;padding-right: 5px !important;padding-bottom: 0px !important;padding-left: 5px !important;background-color: #ccffff !important;border-radius: 20px !important;}&rdquo; el_id=&rdquo;mobile&rdquo;][vc_column offset=&rdquo;vc_hidden-lg vc_hidden-md vc_hidden-sm&rdquo;][vc_column_text css=&rdquo;.vc_custom_1627123409680{padding: 0px !important;border: 0px initial !important;}&rdquo; el_id=&rdquo;mobiel&rdquo;]<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000099;\">You are viewing the mobile-adapted version of the page.<\/span><br>\n<span style=\"color: #000099;\">The one for tablets, laptop and desktop also provides general information, such as origin, toxicity and cultivation.<\/span><\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row gap=&rdquo;35&Prime; css=&rdquo;.vc_custom_1532162142715{background-color: #e6e6e6 !important;}&rdquo;][vc_column width=&rdquo;1\/2&Prime; offset=&rdquo;vc_hidden-xs&rdquo;][vc_single_image image=&rdquo;3535&Prime; img_size=&rdquo;medium&rdquo; add_caption=&rdquo;yes&rdquo; style=&rdquo;vc_box_rounded&rdquo; onclick=&rdquo;img_link_large&rdquo;][vc_column_text el_id=&rdquo;entrytxt&rdquo; el_class=&rdquo;entrytxt&rdquo; css=&rdquo;.vc_custom_1551361762270{padding-left: 10px !important;}&rdquo;]<\/p>\n<ul>\n<li>Forsythia is not poisonous, even to pets. The flowers are edible, but not tasty (bitter).<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&rdquo;1\/2&Prime; css=&rdquo;.vc_custom_1649256344294{background-color: #e6e6e6 !important;}&rdquo; offset=&rdquo;vc_hidden-xs&rdquo;][vc_column_text el_id=&rdquo;topentry&rdquo; el_class=&rdquo;topentry&rdquo;]<strong>Forsythia<\/strong> belongs to the olive family <em>(Oleaceae)<\/em>. Forsythia blooms as early as March with yellow flowers along the bare branches. The shrub can grow to over three meter tall and wide. Forsythia blooms on the biennial wood. It is an easy shrub that likes a spot in the sun and is not picky about soil, as long as it is not too wet or too dry.<br>\nForsythia prunes well, it can also be planted as a hedge. Pruning after flowering promotes the formation of new wood.<br>\nBranches with flower buds can be forced to bloom indoors.<br>\nForsythia is easily propagated by <a title=\"Glossary\" href=\"https:\/\/www.plantenplagen.nl\/en\/files\/glossary\/\" target=\"_blank\" rel=\"noopener noreferrer\">layering<\/a>.[\/vc_column_text][\/vc_column][\/vc_row][vc_row equal_height=&rdquo;yes&rdquo;][vc_column width=&rdquo;1\/3&Prime;][vc_custom_heading text=&rdquo;Bugs&rdquo; font_container=&rdquo;tag:h4|text_align:center|color:%23ffffff&rdquo; google_fonts=&rdquo;font_family:Lato%3A100%2C100italic%2C300%2C300italic%2Cregular%2Citalic%2C700%2C700italic%2C900%2C900italic|font_style:400%20regular%3A400%3Anormal&rdquo; css=&rdquo;.vc_custom_1532164328547{background-color: #585858 !important;}&rdquo;][vc_column_text el_class=&rdquo;entrytxt&rdquo;]Forsythia wilts, leaves turn bronzy and drop off early; branches die. Eventually, the forsythia dies. The root system is too small and partly dead. The roots may show thickening: <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/northern-root-knot-nematode\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Northern root-knot nematode lives underground and attacks plant roots. [\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][vc_column_text el_id=\"entrytxt\" el_class=\"entrytxt\" css=\".vc_custom_1541252225214{padding-left: 20px !important;}\"][\/vc_column_text][\/vc_column][\/vc_row][vc_row gap=\"35\" css=\".vc_custom_1532162142715{background-color: #e6e6e6 !important;}\"][vc_column width=\"1\/2\"][vc_single_image image=\"2797\" img_size=\"medium\" add_caption=\"yes\" style=\"vc_box_rounded\" onclick=\"img_link_large\"][\/vc_column][vc_column width=\"1\/2\" css=\".vc_custom_1532162092980{background-color: #e6e6e6 !important;}\"][vc_column_text el_class=\"entrytxt\"]Northern root-knot nematode (Meloidogyne hapla). Northern root-knot nematodes live under the ground and attack plant roots. Almost all vegetable and garden plants&hellip;' class=\"encyclopedia\">Northern root-knot nematode<\/a> <em>(Meloidogyne hapla)<\/em>.<\/p>\n<p>Forsythia lags in growth, has highly branched, bushy roots. Brown spots appear on the roots resulting in affected roots. Water balance is disturbed, wilting follows, shrub yellows and eventually dies: <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/northern-root-lesion\/\" target=\"_blank\" title=\"[vc_row][vc_column width=&quot;2\/3&quot;][vc_column_text el_id=&quot;topentry&quot; el_class=&quot;topentry&quot;]Northern root lesion is one of the many types of root lesion nematodes and causes the most damage on plant roots. [\/vc_column_text][\/vc_column][vc_column width=&quot;1\/3&quot;][vc_column_text el_id=&quot;entrytxt&quot; el_class=&quot;entrytxt&quot; css=&quot;.vc_custom_1685636319078{padding-left: 20px !important;}&quot;]Also known as: Cobb's root-lesion nematode Meadow nematode Northern root lesion nematode[\/vc_column_text][\/vc_column][\/vc_row][vc_row gap=&quot;35&quot; css=&quot;.vc_custom_1532162142715{background-color: #e6e6e6 !important;}&quot;][vc_column width=&quot;1\/2&quot;][vc_single_image image=&quot;2651&quot; img_size=&quot;medium&quot; add_caption=&quot;yes&quot; style=&quot;vc_box_rounded&quot; onclick=&quot;img_link_large&quot;][\/vc_column][vc_column width=&quot;1\/2&quot; css=&quot;.vc_custom_1532162092980{background-color: #e6e6e6&hellip;\" class=\"encyclopedia\">northern root lesion<\/a> <em>(Pratylenchus penetrans)<\/em>.[\/vc_column_text][\/vc_column][vc_column width=&rdquo;1\/3&Prime; css=&rdquo;.vc_custom_1532102781238{background-color: #ffffff !important;}&rdquo;][vc_custom_heading text=&rdquo;Fungi &amp; diseases&rdquo; font_container=&rdquo;tag:h4|text_align:center|color:%23ffffff&rdquo; google_fonts=&rdquo;font_family:Lato%3A100%2C100italic%2C300%2C300italic%2Cregular%2Citalic%2C700%2C700italic%2C900%2C900italic|font_style:400%20regular%3A400%3Anormal&rdquo; css=&rdquo;.vc_custom_1537885449118{background-color: #585858 !important;}&rdquo;][vc_column_text el_class=&rdquo;entrytxt&rdquo;]<\/p>\n<figure id=\"attachment_3545\" aria-describedby=\"caption-attachment-3545\" style=\"width: 500px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/plantenplagen.nl\/wp-content\/uploads\/Kroongalziekte_Forsythia.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3545 size-medium\" src=\"https:\/\/plantenplagen.nl\/wp-content\/uploads\/Kroongalziekte_Forsythia-500x353.jpg\" alt=\"\" width=\"500\" height=\"353\" srcset=\"https:\/\/www.plantenplagen.nl\/wp-content\/uploads\/Kroongalziekte_Forsythia-500x353.jpg 500w, https:\/\/www.plantenplagen.nl\/wp-content\/uploads\/Kroongalziekte_Forsythia-768x542.jpg 768w, https:\/\/www.plantenplagen.nl\/wp-content\/uploads\/Kroongalziekte_Forsythia-1024x723.jpg 1024w, https:\/\/www.plantenplagen.nl\/wp-content\/uploads\/Kroongalziekte_Forsythia.jpg 1200w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\"><\/a><figcaption id=\"caption-attachment-3545\" class=\"wp-caption-text\"><a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/crown-gall-disease\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Crown gall disease, this bacterium lives underground and infects a plant through a wound. [\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][\/vc_column][\/vc_row][vc_row gap=\"35\" css=\".vc_custom_1532162142715{background-color: #e6e6e6 !important;}\"][vc_column width=\"1\/2\"][vc_single_image image=\"3547\" img_size=\"medium\" add_caption=\"yes\" style=\"vc_box_rounded\" onclick=\"img_link_large\"][vc_single_image image=\"4589\" img_size=\"medium\" add_caption=\"yes\" style=\"vc_box_rounded\" onclick=\"img_link_large\"][\/vc_column][vc_column width=\"1\/2\" css=\".vc_custom_1532162092980{background-color: #e6e6e6 !important;}\"][vc_column_text el_class=\"entrytxt\"]Crown gall disease (Rhizobium radiobacter, formerly: Agrobacterium tumefaciens). The bacterium lives underground and infects a plant through&hellip;' class=\"encyclopedia\">Crown gall disease<\/a>, photo: C-M &ndash; CC BY-SA 3.0<\/figcaption><\/figure>\n<p>Wart-like nodules form on the branches; these can also be found on the roots. The nodules can grow to the size of a ping-pong ball: Crown gall disease <em>(Rhizobium radiobacter)<\/em>.<\/p>\n<p>Leaves wither and branches die unexpectedly. Affected branches show green or brown discoloration. Often only on one side of the bush. Sometimes confused with a very early autumn; but is probably <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/verticillium-wilt\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Verticillium wilt belongs to the soil fungi that causes wilt in greenhouses and on wet soils. [\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][\/vc_column][\/vc_row][vc_row gap=\"35\" css=\".vc_custom_1532162142715{background-color: #e6e6e6 !important;}\"][vc_column width=\"1\/2\"][vc_single_image image=\"2563\" img_size=\"medium\" add_caption=\"yes\" style=\"vc_box_rounded\" onclick=\"img_link_large\"][\/vc_column][vc_column width=\"1\/2\" css=\".vc_custom_1532162092980{background-color: #e6e6e6 !important;}\"][vc_column_text el_class=\"entrytxt\"]Verticillium species are soil fungi that causes wilting,&nbsp;especially in hot greenhouses and on wet soils. However, various garden plants can&hellip;' class=\"encyclopedia\">Verticillium wilt<\/a> <em>(Verticillium spp).<\/em>[\/vc_column_text][\/vc_column][vc_column width=&rdquo;1\/3&Prime; css=&rdquo;.vc_custom_1532102799994{background-color: #ffffff !important;}&rdquo;][vc_custom_heading text=&rdquo;Other&rdquo; font_container=&rdquo;tag:h4|text_align:center|color:%23ffffff&rdquo; google_fonts=&rdquo;font_family:Lato%3A100%2C100italic%2C300%2C300italic%2Cregular%2Citalic%2C700%2C700italic%2C900%2C900italic|font_style:400%20regular%3A400%3Anormal&rdquo; css=&rdquo;.vc_custom_1532164377225{background-color: #585858 !important;}&rdquo;][vc_column_text el_id=&rdquo;entrytxt&rdquo; el_class=&rdquo;entrytxt&rdquo;]Cats still like to sharpen their nails on the rough bark of Forsythia shrubs. This produces a ragged bark that &ndash; if the damage is extensive &ndash; can seriously disrupt the shrub&rsquo;s water balance. To keep cats away, attach mesh around the base of the shrub.[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"author":14,"template":"","categories":[],"tags":[],"encyclopedia-category":[667],"encyclopedia-tag":[],"class_list":["post-12471","encyclopedia","type-encyclopedia","status-publish","hentry","encyclopedia-category-ornamental-garden"],"_links":{"self":[{"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/encyclopedia\/12471","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/encyclopedia"}],"about":[{"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/types\/encyclopedia"}],"author":[{"embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/users\/14"}],"wp:attachment":[{"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/media?parent=12471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/categories?post=12471"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/tags?post=12471"},{"taxonomy":"encyclopedia-category","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/encyclopedia-category?post=12471"},{"taxonomy":"encyclopedia-tag","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/encyclopedia-tag?post=12471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}