{"id":14825,"date":"2018-12-05T15:09:53","date_gmt":"2018-12-05T14:09:53","guid":{"rendered":"https:\/\/www.plantenplagen.nl\/plantenplagen\/nectria-canker\/"},"modified":"2023-12-27T17:04:17","modified_gmt":"2023-12-27T16:04:17","slug":"nectria-canker","status":"publish","type":"encyclopedia","link":"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/nectria-canker\/","title":{"rendered":"Nectria canker"},"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;]Nectria canker is caused by a fungus that usually invades the tree in autumn through leaf scars and pruning wounds.<br>\n<!--more-->[\/vc_column_text][\/vc_column][vc_column width=&rdquo;1\/3&Prime;][vc_column_text el_id=&rdquo;entrytxt&rdquo; el_class=&rdquo;entrytxt&rdquo; css=&rdquo;.vc_custom_1544016877666{padding-left: 20px !important;}&rdquo;]<em>Also known as:<\/em><br>\nApple canker[\/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;][vc_single_image image=&rdquo;3157&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][vc_column width=&rdquo;1\/2&Prime; css=&rdquo;.vc_custom_1532162092980{background-color: #e6e6e6 !important;}&rdquo;][vc_column_text el_class=&rdquo;entrytxt&rdquo;]<strong>Nectria canker<\/strong> <em>(Neo<wbr><\/wbr>nectria ditissima)<\/em> is caused by a fungus, a wound parasite, which usually enters the tree in the fall through <a href=\"https:\/\/www.plantenplagen.nl\/en\/files\/glossary\/\" target=\"_blank\" rel=\"noopener\">leaf scars<\/a> and pruning wounds.<br>\nInfestation begins with deepening and darkening of the bark; tree cells die and sap flow is interrupted. Then cancer spots and proliferation occur. A canker on the trunk can kill the tree.<br>\nIn spring and summer, in wet and humid weather, the fungus spreads its spores: these can cause <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/neonectria\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Neonectria is caused by the same fungus responsible for Nectria canker. [\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][vc_column_text]The fungus Neonectria ditissima causes: Apple canker - also known as: Nectria canker End rot and rotten spots: Neonectria[\/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=\"3187\" 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\"]Neonectria (Neonectria ditissima) is caused by the&hellip;' class=\"encyclopedia\">neonectria<\/a> on fruit.<br>\nThe fungus can also be spread by the <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/woolly-apple-aphid\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Woolly apple aphid is an approximately 2 mm large aphid that lives on plant sap that is sucked from young twigs and pruning wounds. [\/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=\"5673\" 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\"]Woolly apple aphid (Eriosoma lanigerum) is native to North America. The approximately&hellip;' class=\"encyclopedia\">woolly apple aphid<\/a> <em>(Eriosoma lanigerum)<\/em>.[\/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;Where to find&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_1537946500082{background-color: #536895 !important;}&rdquo;][vc_column_text el_id=&rdquo;entrytxt&rdquo; el_class=&rdquo;entrytxt&rdquo; css=&rdquo;.vc_custom_1703692997875{padding-left: 15px !important;}&rdquo;]<\/p>\n<ul>\n<li><strong>Fruit trees<\/strong> (<a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/apple-tree\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]The apple tree belongs to a genus of small deciduous trees or shrubs of the rose family. [\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][\/vc_column][\/vc_row][vc_row content_placement=\"middle\" css=\".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;}\" el_id=\"mobile\"][vc_column offset=\"vc_hidden-lg vc_hidden-md vc_hidden-sm\"][vc_column_text css=\".vc_custom_1637494665141{padding-top: 0px !important;padding-right: 0px !important;padding-bottom: 0px !important;padding-left: 0px !important;}\" el_id=\"mobiel\"] You are viewing the mobile-adapted&hellip;' class=\"encyclopedia\">apple tree<\/a>, <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/pear-tree\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Pear tree, fruit tree for vegetable and ornamental gardens. [\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][\/vc_column][\/vc_row][vc_row content_placement=\"middle\" css=\".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;}\" el_id=\"mobile\"][vc_column offset=\"vc_hidden-lg vc_hidden-md vc_hidden-sm\"][vc_column_text css=\".vc_custom_1627286948150{padding-top: 0px !important;padding-right: 0px !important;padding-bottom: 0px !important;padding-left: 0px !important;}\" el_id=\"mobiel\"] You are viewing the mobile-adapted version of the page. The one for tablets,&hellip;' class=\"encyclopedia\">pear tree<\/a>)<\/li>\n<li><a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/birch\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Birch is a tree in the birch family. Birches are hardy and can be found anywhere in the Northern Hemisphere. [\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][\/vc_column][\/vc_row][vc_row content_placement=\"middle\" css=\".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;}\" el_id=\"mobile\"][vc_column offset=\"vc_hidden-lg vc_hidden-md vc_hidden-sm\"][vc_column_text css=\".vc_custom_1627123409680{padding: 0px !important;border: 0px initial !important;}\" el_id=\"mobiel\"] You are viewing the mobile-adapted&hellip;' class=\"encyclopedia\">Birch<\/a><\/li>\n<li><a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/beech\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]The beech is tree with a smooth trunk that can reach a height of over forty meters and four hundred years old. [\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][vc_column_text el_id=\"entrytxt\" el_class=\"entrytxt\"]Do not confuse with: Common hornbeam (Carpinus betulus)[\/vc_column_text][\/vc_column][\/vc_row][vc_row content_placement=\"middle\" css=\".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;}\" el_id=\"mobile\"][vc_column offset=\"vc_hidden-lg vc_hidden-md vc_hidden-sm\"][vc_column_text css=\".vc_custom_1627123409680{padding:&hellip;' class=\"encyclopedia\">Beech<\/a><\/li>\n<li><a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/maple\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Maple, a genus of deciduous deciduous trees and shrubs. [\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][\/vc_column][\/vc_row][vc_row content_placement=\"middle\" css=\".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;}\" el_id=\"mobile\"][vc_column offset=\"vc_hidden-lg vc_hidden-md vc_hidden-sm\"][vc_column_text css=\".vc_custom_1627123409680{padding: 0px !important;border: 0px initial !important;}\" el_id=\"mobiel\"] You are viewing the mobile-adapted version of the page. The one for tablets, laptop and desktop&hellip;' class=\"encyclopedia\">Maple<\/a><\/li>\n<li>Rowan (mountain-a<wbr><\/wbr>sh)<\/li>\n<li>Poplar<\/li>\n<li><a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/willow\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Willow, deciduous tree or shrub belonging to the willow family (Salicaceae). The willow family has + three hundred species plus numerous hybrids.[\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][vc_column_text el_id=\"entrytxt\" el_class=\"entrytxt\"]Also known as: Sallows Osiers[\/vc_column_text][\/vc_column][\/vc_row][vc_row content_placement=\"middle\" css=\".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;}\" el_id=\"mobile\"][vc_column offset=\"vc_hidden-lg vc_hidden-md vc_hidden-sm\"][vc_column_text css=\".vc_custom_1627123409680{padding: 0px !important;border: 0px initial&hellip;' class=\"encyclopedia\">Willow<\/a><\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&rdquo;1\/3&Prime; css=&rdquo;.vc_custom_1532102790165{background-color: #ffffff !important;}&rdquo;][vc_custom_heading text=&rdquo;Control&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_1532165404849{background-color: #536895 !important;}&rdquo;][vc_column_text el_id=&rdquo;entrytxt&rdquo; el_class=&rdquo;entrytxt&rdquo;]Remove affected branches, cut affected areas on the trunk and structural branches. Protect pruning and cutting wounds with <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/wound-balm\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_class=\"topentry\"]Wound balm is used to cover pruning and cutting wounds. [\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][vc_column_text el_id=\"entrytxt\" el_class=\"entrytxt\" css=\".vc_custom_1544021859278{padding-left: 18px !important;}\"][\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=\"2\/3\"][vc_column_text el_class=\"introtxt\" el_id=\"introtxt\"]Wound balm is used to cover pruning and cutting wounds. It provides a breathable and elastic protective layer on the wound and has a natural, gray-green color. Wound balm promotes healing of the pruning&hellip;' class=\"encyclopedia\">wound balm<\/a>.[\/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;Prevention&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_1532165414573{background-color: #536895 !important;}&rdquo;][vc_column_text el_id=&rdquo;entrytxt&rdquo; el_class=&rdquo;entrytxt&rdquo;]Ensure good drainage and keep the heart of fruit trees open so that the wind has free rein. Prevent branches from rubbing past each other causing damage. Decontaminate used pruning tools.<br>\nEarwigs, <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/parasitoid-wasp\/\" target=\"_blank\" rel=\"noopener\">parasitoid wasps<\/a> and gall midges are the natural enemies of the woolly apple <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/aphid_aphidoidea\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Aphids are small, herbivorous insects. There are green, white, black, yellow, red and purple aphids. A special category are the Scale insects. [\/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=\"5987\" 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\"]Aphids (Aphidoidea). Small, herbivorous insects up to a maximum of 5 mm. Mainly damage&hellip;' class=\"encyclopedia\">aphid<\/a>, the insect that helps spread fungus. So do not destroy these insects.[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"author":14,"template":"","categories":[],"tags":[],"encyclopedia-category":[665],"encyclopedia-tag":[931],"class_list":["post-14825","encyclopedia","type-encyclopedia","status-publish","hentry","encyclopedia-category-fungi-and-diseases","encyclopedia-tag-neonectria-en"],"_links":{"self":[{"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/encyclopedia\/14825","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=14825"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/categories?post=14825"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/tags?post=14825"},{"taxonomy":"encyclopedia-category","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/encyclopedia-category?post=14825"},{"taxonomy":"encyclopedia-tag","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/encyclopedia-tag?post=14825"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}