{"id":11679,"date":"2020-05-09T15:32:59","date_gmt":"2020-05-09T13:32:59","guid":{"rendered":"https:\/\/www.plantenplagen.nl\/plantenplagen\/quassia-amara\/"},"modified":"2022-10-06T17:42:08","modified_gmt":"2022-10-06T15:42:08","slug":"quassia-amara","status":"publish","type":"encyclopedia","link":"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/quassia-amara\/","title":{"rendered":"Quassia amara"},"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_class=&rdquo;topentry&rdquo;]Quassia amara&nbsp;is a species of wood from Central America. Bitterwood is used as an insecticide and as an additive in the food industry.<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_1538658322113{padding-left: 18px !important;}&rdquo;]<\/p>\n<ul>\n<li>Biological Pesticide<\/li>\n<\/ul>\n<p>[\/vc_column_text][vc_column_text el_class=&rdquo;entrytxt&rdquo; css=&rdquo;.vc_custom_1665070004325{padding-left: 18px !important;}&rdquo;]<em>Also known as:<\/em><br>\nBitter-wood<br>\nAmargo<br>\nBitter-<a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/ash\/\" target=\"_blank\" title='[vc_row][vc_column width=\"2\/3\"][vc_column_text el_id=\"topentry\" el_class=\"topentry\"]Ash, deciduous tree native to Europe. An ash tree can grow over forty meters tall and be two to three centuries old.[\/vc_column_text][\/vc_column][vc_column width=\"1\/3\"][vc_column_text el_id=\"entrytxt\" el_class=\"entrytxt\"]Also known as: Common ash European ash[\/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:&hellip;' class=\"encyclopedia\">ash<\/a>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&rdquo;2\/3&Prime;][vc_column_text el_class=&rdquo;introtxt&rdquo; el_id=&rdquo;introtxt&rdquo;]<strong>Quassia amara<\/strong> is a species of wood in the genus <em>Quassia<\/em>. Bitterwood is used as an insecticide and as an additive in the food industry.<br>\nQuassia amara usually takes the form of a shrub and sometimes a small tree. Quassia amara grows about 3 m tall, has 15-25 cm long, pinnate leaves. The panicle-shaped flowers grow 15-25 cm long, are bright red on the outside and white inside. The drupes grow to about 1.5 cm in size.<br>\nQuassia amara is native to Central America: from Costa Rica to Argentina. Quassia amara is widely planted outside its original range.<br>\nThe wood contains <em>quassin<\/em>, one of the most bitter substances found in nature. Extracts of Quassia amara or the bark act as a natural insecticide. This extract provides good protection against <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/aphids\/\" target=\"_blank\" title=\"[vc_row][vc_column][vc_column_text]Aphids are small, plant-eating insects; see: overview aphids, aphid, black bean aphid, black cherry aphid, catalpa aphid, cabbage aphid, currant blister aphid, green peach aphid, green apple aphid, holly aphid, Hydrangea scale, Scale insect, mealybug, lettuce-root aphid, woolly beech aphid, cypress aphid.[\/vc_column_text][\/vc_column][\/vc_row]\" class=\"encyclopedia\">aphids<\/a>, Colorado <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/potato\/\" 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;]The potato is a plant with underground tubers. The potato is the world's most important food crop after rice, wheat and maize. [\/vc_column_text][\/vc_column][vc_column width=&quot;1\/3&quot;][\/vc_column][\/vc_row][vc_row css=&quot;.vc_custom_1627122121377{margin-bottom: 0px !important;border-top-width: 0px !important;border-right-width: 0px !important;border-left-width: 0px !important;padding-top: 5px !important;padding-right: 3px !important;padding-bottom: 6px !important;padding-left: 3px !important;}&quot;][vc_column offset=&quot;vc_hidden-lg vc_hidden-md vc_hidden-sm&quot;][vc_column_text css=&quot;.vc_custom_1627123139590{margin-bottom: 0px !important;border-top-width: 0px !important;border-right-width: 0px !important;border-left-width: 0px&hellip;\" class=\"encyclopedia\">potato<\/a> <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/beetles\/\" target=\"_blank\" title=\"[vc_row][vc_column][vc_column_text]Beetles (Coleoptera) belong to the winged insects, whose front pair of wings are hardened into wing-cases (elytra). Except at the poles and in the sea, beetles are found all over the world. There are over 4,200 beetle species in the UK. See: Apple blossom weevil, flea beetle, Common asparagus beetle, asparagus beetle, Beech leaf-miner beetle,&hellip;\" class=\"encyclopedia\">beetles<\/a> and the caterpillars of the <a href=\"https:\/\/www.plantenplagen.nl\/en\/plantenplagen\/apple-sawfly\/\" 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;]The apple sawfly belongs to the sawflies. Sawflies do not have a wasp waist like the 'regular' wasps and they do not sting. [\/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_1589103713793{padding-left: 20px !important;}&quot;]Do not confuse with: Apple leaf sawfly (Pristiphora maesta)[\/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;5821&quot; img_size=&quot;medium&quot; add_caption=&quot;yes&quot; style=&quot;vc_box_rounded&quot; onclick=&quot;img_link_large&quot;][vc_single_image image=&quot;5819&quot; img_size=&quot;medium&quot; add_caption=&quot;yes&quot; style=&quot;vc_box_rounded&quot;&hellip;\" class=\"encyclopedia\">apple sawfly<\/a>, among others. Quassine extract acts as a contact insecticide. Adverse effects on beneficial organisms were not found. However, human health risks are not ruled out: tests on rats (1997) showed a sharp reduction in fertility after exposure to Quassin extract.<br>\n<em>Application as spray liquid:<\/em> mix 200 grams of Quassia wood chips with 2 liters of water. Let stand for 24 hours and then boil for 30 minutes. Strain this brew to remove the wood chips, then dilute with 15 liters of water. Spraying apple trees helps prevent damage from the caterpillars of the apple sawfly.[\/vc_column_text][\/vc_column][vc_column width=&rdquo;1\/3&Prime;][vc_single_image image=&rdquo;5829&Prime; img_size=&rdquo;medium&rdquo; add_caption=&rdquo;yes&rdquo; style=&rdquo;vc_box_rounded&rdquo; onclick=&rdquo;img_link_large&rdquo; img_link_target=&rdquo;_blank&rdquo;][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"author":14,"template":"","categories":[],"tags":[],"encyclopedia-category":[657],"encyclopedia-tag":[],"class_list":["post-11679","encyclopedia","type-encyclopedia","status-publish","hentry","encyclopedia-category-control-prevention"],"_links":{"self":[{"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/encyclopedia\/11679","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=11679"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/categories?post=11679"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/tags?post=11679"},{"taxonomy":"encyclopedia-category","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/encyclopedia-category?post=11679"},{"taxonomy":"encyclopedia-tag","embeddable":true,"href":"https:\/\/www.plantenplagen.nl\/en\/wp-json\/wp\/v2\/encyclopedia-tag?post=11679"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}