{"id":14695,"date":"2018-11-11T15:12:31","date_gmt":"2018-11-11T14:12:31","guid":{"rendered":"https:\/\/www.plantenplagen.nl\/plantenplagen\/bean-leafroll-virus-blrv\/"},"modified":"2023-12-17T16:23:32","modified_gmt":"2023-12-17T15:23:32","slug":"bean-leafroll-virus-blrv","status":"publish","type":"encyclopedia","link":"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/bean-leafroll-virus-blrv\/","title":{"rendered":"Bean leafroll virus (BLRV)"},"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;]Bean leafroll virus (BLRV) is a viral disease that causes yellowing of leaves and stems, often starting at the top of the leaf.<br>\n<!--more-->[\/vc_column_text][\/vc_column][vc_column width=&rdquo;1\/3&Prime;][\/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;2925&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>Bean leafroll virus (BLRV)<\/strong> is a viral disease that causes yellowing of leaves and stems, often starting at the top of the leaf. The virus is spread by the <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/pea\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Pea is an annual plant belonging to the legume family. Garden peas, Sugar peas, Snow peas and Field peas (Kapucijner pea) are all peas. [\/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_1649256063277{padding-top: 0px !important;padding-right: 0px !important;padding-bottom: 0px !important;padding-left: 0px&hellip;' class=\"encyclopedia\">pea<\/a> <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> <em>(Acyrthosiphon pisum)<\/em>. The aph<wbr><\/wbr>ids hibernate on alfalfa and swarm out starting in May. The nanovirus that causes Bean leafroll virus takes only 15 minutes to infect a crop. After <u>+20<\/u> days, the first symptoms become visible on leaf or stem.<br>\nThe <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/parasitoid-wasp\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_class=\"topentry\"]Parasitoid wasps lay their eggs in or on their victims and are therefore a formidable enemy of aphids and greenhouse whitefly, among others. [\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][vc_column_text el_id=\"entrytxt\" el_class=\"entrytxt\" css=\".vc_custom_1538658322113{padding-left: 18px !important;}\"] Biological Pesticide [\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=\"2\/3\"][vc_column_text el_class=\"introtxt\" el_id=\"introtxt\"]Parasitoid wasps are not very similar to the common yellow-brown wasps. Parasitoid wasps are small, slender wasps with&hellip;' class=\"encyclopedia\">parasitoid wasp<\/a> <em>(Aphidius ervi)<\/em> is a natural enemy of the pea aphid.[\/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_1541944720026{padding-left: 15px !important;}&rdquo;]<\/p>\n<ul>\n<li>Pea<\/li>\n<li><a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/broad-bean\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Broad beans; there are two types: those that turn brown after cooking and those that remain pale green. The latter variety tastes less bitter than the former. [\/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_1649262264016{padding-top: 0px !important;padding-right: 0px !important;padding-bottom:&hellip;' class=\"encyclopedia\">Broad bean<\/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;]Difficult to control, once yellowing begins, recovery is not possible.[\/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;]Keep aph<wbr><\/wbr>ids away. In professional horticulture, the parasitoid <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/wasp\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Wasps are useful animals: they pollinate flowers and kill many flies, mosquitoes and insect larvae every day[\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][vc_column_text el_id=\"entrytxt\" el_class=\"entrytxt\" css=\".vc_custom_1662219976959{padding-left: 20px !important;}\"]Do not confuse with: European hornet (Vespa crabro) Hornet mimic hoverfly (Volucella zonaria)[\/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=\"5747\" 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\"]Wasp (Vespula vulgaris).&hellip;' class=\"encyclopedia\">wasp<\/a> <em>Aphidius ervi<\/em> is used to kill the spreader of Bean leafroll virus, the pea aphid.[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"author":14,"template":"","categories":[],"tags":[],"encyclopedia-category":[665],"encyclopedia-tag":[],"class_list":["post-14695","encyclopedia","type-encyclopedia","status-publish","hentry","encyclopedia-category-fungi-and-diseases"],"_links":{"self":[{"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/encyclopedia\/14695","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=14695"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/categories?post=14695"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/tags?post=14695"},{"taxonomy":"encyclopedia-category","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/encyclopedia-category?post=14695"},{"taxonomy":"encyclopedia-tag","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/encyclopedia-tag?post=14695"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}