{"id":2822,"date":"2015-07-15T13:54:10","date_gmt":"2015-07-15T20:54:10","guid":{"rendered":"http:\/\/ppo.puyallup.wsu.edu\/sod\/?page_id=2822"},"modified":"2015-07-15T14:29:52","modified_gmt":"2015-07-15T21:29:52","slug":"armillaria","status":"publish","type":"page","link":"https:\/\/ppo.puyallup.wsu.edu\/sod\/education\/mginfo\/pr-symptoms\/armillaria\/","title":{"rendered":"Armillaria root disease"},"content":{"rendered":"<br \/>\n<section id=\"builder-section-1436991789170\" class=\"row single gutter pad-top\">\n<div class=\"column one \">\n<header>\n<h2>Armillaria root disease<\/h2>\n<\/header>\n<p>A common problem of landscape oaks and other trees in irrigated settings, <em>Armillaria<\/em> often causes a general decline, characterized by sparse, off colored foliage. Healthy appearing trees may die suddenly after foliage wilts and fades. A resinous, gummy or liquid exudate may be seen on the lower trunk of affected trees, which can be mistaken for the bleeding symptom of <em>P. ramorum<\/em>. <em>Armillaria<\/em> produces distinctive thin, white fans of fungal material that can be seen growing between bark and wood. These mycelial fans smell like common edible mushrooms. The bark nearby is often dead, loose or missing, and light brown mushrooms may appear at the tree&#8217;s base in winter. Bleeding and mycelial fans are more commonly seen on conifer hosts. Although this disease is often characterized by decline, canopy symptoms may be lacking.<\/p>\n<figure id=\"attachment_2840\" aria-describedby=\"caption-attachment-2840\" style=\"width: 396px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/07\/1400105.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-2840\" src=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/07\/1400105-396x257.jpg\" alt=\"Armillaria mushrooms\" width=\"396\" height=\"257\" srcset=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/07\/1400105-396x257.jpg 396w, https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/07\/1400105.jpg 768w\" sizes=\"(max-width: 396px) 100vw, 396px\" \/><\/a><figcaption id=\"caption-attachment-2840\" class=\"wp-caption-text\">Armillaria mushrooms on a hardwood and white pine site in Upper Peninsula of Michigan, in autumn. &#8211; Linda Haugen, USDA Forest Service, Bugwood.org<\/figcaption><\/figure>\n<figure id=\"attachment_2846\" aria-describedby=\"caption-attachment-2846\" style=\"width: 396px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/07\/5261074.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-2846\" src=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/07\/5261074-396x266.jpg\" alt=\"Armillaria on dogwood\" width=\"396\" height=\"266\" srcset=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/07\/5261074-396x266.jpg 396w, https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/07\/5261074.jpg 768w\" sizes=\"(max-width: 396px) 100vw, 396px\" \/><\/a><figcaption id=\"caption-attachment-2846\" class=\"wp-caption-text\">Armillaria root rot causing crown decline in dogwood (Cornus spp.) (Photo: Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org)<\/figcaption><\/figure>\n<figure id=\"attachment_2848\" aria-describedby=\"caption-attachment-2848\" style=\"width: 396px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/07\/5367188.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-2848\" src=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/07\/5367188-396x611.jpg\" alt=\"Armillaria mycelial fans\" width=\"396\" height=\"611\" srcset=\"https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/07\/5367188-396x611.jpg 396w, https:\/\/wpcdn.web.wsu.edu\/wp-puyallup\/uploads\/sites\/687\/2015\/07\/5367188.jpg 497w\" sizes=\"(max-width: 396px) 100vw, 396px\" \/><\/a><figcaption id=\"caption-attachment-2848\" class=\"wp-caption-text\">Armillaria mycelial fans under bark. ( William Jacobi, Colorado State University, Bugwood.org)<\/figcaption><\/figure>\n<p><a href=\"http:\/\/ppo.puyallup.wsu.edu\/sod\/education\/mginfo\/pr-symptoms\/\">Back to symptom ID guide<\/a><\/p>\n<\/p><\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p> <\/p>\n<h2>Armillaria root disease<\/h2>\n<p>A common problem of landscape oaks and other trees in irrigated settings, <em>Armillaria<\/em> often causes a general decline, characterized by sparse, off colored foliage. Healthy &#8230; <a href=\"https:\/\/ppo.puyallup.wsu.edu\/sod\/education\/mginfo\/pr-symptoms\/armillaria\/\" class=\"more-link\"><span class=\"more-default\">&raquo; More &#8230;<\/span><\/a><\/p>\n","protected":false},"author":1130,"featured_media":0,"parent":1956,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"template-builder.php","meta":[],"wsuwp_university_location":[],"wsuwp_university_org":[],"_links":{"self":[{"href":"https:\/\/ppo.puyallup.wsu.edu\/sod\/wp-json\/wp\/v2\/pages\/2822"}],"collection":[{"href":"https:\/\/ppo.puyallup.wsu.edu\/sod\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ppo.puyallup.wsu.edu\/sod\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ppo.puyallup.wsu.edu\/sod\/wp-json\/wp\/v2\/users\/1130"}],"replies":[{"embeddable":true,"href":"https:\/\/ppo.puyallup.wsu.edu\/sod\/wp-json\/wp\/v2\/comments?post=2822"}],"version-history":[{"count":4,"href":"https:\/\/ppo.puyallup.wsu.edu\/sod\/wp-json\/wp\/v2\/pages\/2822\/revisions"}],"predecessor-version":[{"id":2852,"href":"https:\/\/ppo.puyallup.wsu.edu\/sod\/wp-json\/wp\/v2\/pages\/2822\/revisions\/2852"}],"up":[{"embeddable":true,"href":"https:\/\/ppo.puyallup.wsu.edu\/sod\/wp-json\/wp\/v2\/pages\/1956"}],"wp:attachment":[{"href":"https:\/\/ppo.puyallup.wsu.edu\/sod\/wp-json\/wp\/v2\/media?parent=2822"}],"wp:term":[{"taxonomy":"wsuwp_university_location","embeddable":true,"href":"https:\/\/ppo.puyallup.wsu.edu\/sod\/wp-json\/wp\/v2\/wsuwp_university_location?post=2822"},{"taxonomy":"wsuwp_university_org","embeddable":true,"href":"https:\/\/ppo.puyallup.wsu.edu\/sod\/wp-json\/wp\/v2\/wsuwp_university_org?post=2822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}