{"id":681,"date":"2019-08-19T20:26:05","date_gmt":"2019-08-19T18:26:05","guid":{"rendered":"http:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/?page_id=681"},"modified":"2025-02-11T14:38:46","modified_gmt":"2025-02-11T13:38:46","slug":"nekroza-jasanu","status":"publish","type":"page","link":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/nekroza-jasanu\/","title":{"rendered":"nekr\u00f3za jasanu"},"content":{"rendered":"\n<p class=\"has-text-align-left has-medium-font-size\"><strong><em>Hymenoscyphus fraxineus<\/em><\/strong><strong>&nbsp;(T. Kowalski) Baral, Queloz &amp; Hosoya \u2013 voskovi\u010dka jasanov\u00e1 <\/strong><\/p>\n\n\n\n<p>SYNONYMUM: <strong><em>Hymenoscyphus pseudoalbidus <\/em><\/strong><strong>Queloz,\nGr\u00fcnig, Berndt, T. Kowalski, T.N. Sieber &amp; Holdenr.<\/strong><strong><\/strong><\/p>\n\n\n\n<p>ANAMORFN\u00cd\nST\u00c1DIUM:<em> <\/em><strong><em>Chalara\nfraxinea&nbsp;&nbsp;<\/em><\/strong><strong>T. Kowalski<\/strong><\/p>\n\n\n\n<p><strong>HOSTITELSK\u00c9 D\u0158EVINY:<\/strong> jasan ztepil\u00fd (<em>Fraxinus excelsior<\/em>)<em>,<\/em> velmi \u010dasto jeho p\u0159evisl\u00fd kultivar <em>F. excelsior &#8218;Pendula&#8216;,<\/em> j. \u00fazkolist\u00fd (<em>F.&nbsp;angustifolia<\/em>).<\/p>\n\n\n\n<p><strong>SYMPTOMY A BIONOMIE:<\/strong> typick\u00e1 je tvorba l\u00e9z\u00ed a nekr\u00f3z v okol\u00ed pupen\u016f, pop\u0159. v m\u00edst\u011b nasazen\u00ed leto\u0161n\u00edch letorost\u016f, n\u00e1sleduje odum\u00edr\u00e1n\u00ed letorost\u016f. Nejd\u0159\u00edve zavadaj\u00ed a usychaj\u00ed listy, kter\u00e9 neopad\u00e1vaj\u00ed a z\u016fst\u00e1vaj\u00ed seschl\u00e9 na stromech, pozd\u011bji zhn\u011bdne k\u016fra cel\u00fdch letorost\u016f a ty odum\u00edraj\u00ed, p\u0159i p\u0159\u00ed\u010dn\u00e9m pr\u016f\u0159ezu je vid\u011bt postupuj\u00edc\u00ed hn\u011bdnut\u00ed cel\u00fdmi letorosty a v\u011btvi\u010dkami. Nekr\u00f3zy jsou elipticky prot\u00e1hl\u00e9 a \u0161\u00ed\u0159\u00ed se pod\u00e9ln\u011b po cel\u00e9m letorostu. U v\u00edcelet\u00fdch v\u00fdhon\u016f mohou nekr\u00f3zy \u010d\u00e1ste\u010dn\u011b zavalovat a vytv\u00e1\u0159et rakovinn\u00e9 r\u00e1ny. Pod po\u0161kozen\u00fdmi \u010d\u00e1stmi d\u0159evin vyr\u016fstaj\u00ed proventivn\u00ed v\u00fdhony. Dal\u0161\u00edm projevem je hn\u011bdnut\u00ed \u0159ap\u00edk\u016f a n\u00e1sledn\u011b listov\u00fdch \u010depel\u00ed koncem l\u00e9ta. Tento symptom je snadno zam\u011bniteln\u00fd s po\u0161kozen\u00edm padl\u00edm jasanov\u00fdm (<em>Erysiphe fraxini<\/em>).<br> Teleomorfa <em>Hymenoscyphus fraxineus<\/em> nar\u016fst\u00e1 na \u0159ap\u00edc\u00edch opadl\u00fdch list\u016f pod napaden\u00fdmi stromy, n\u011bkdy i na opadl\u00fdch v\u011btvi\u010dk\u00e1ch. Po dozr\u00e1n\u00ed se z&nbsp;b\u00edl\u00fdch apotheci\u00ed uvol\u0148uj\u00ed askospory, kter\u00e9 infikuj\u00ed listov\u00e9 \u010depele v&nbsp;korun\u00e1ch strom\u016f. <\/p>\n\n\n<style type=\"text\/css\">\n#foogallery-gallery-2740 .fg-image { width: 365px; }\n#foogallery-gallery-2740 { --fg-gutter: 10px; }<\/style>\n\t\t\t<div class=\"foogallery foogallery-container foogallery-default foogallery-lightbox-none fg-left fg-default fg-ready fg-light fg-border-thin fg-shadow-outline fg-loading-default fg-loaded-fade-in fg-caption-always fg-hover-fade fg-hover-zoom\" id=\"foogallery-gallery-2740\" data-foogallery=\"{&quot;item&quot;:{&quot;showCaptionTitle&quot;:false,&quot;showCaptionDescription&quot;:true},&quot;lazy&quot;:true}\" style=\"--fg-title-line-clamp: 0; --fg-description-line-clamp: 0;\" >\n\t<div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/2020\/02\/P923080623092009_118.jpg\" data-caption-title=\"Tvorba l\u00e9ze na v\u011btvi\u010dce jasanu, Arboretum K\u0159tiny 2008.\" data-caption-desc=\"Tvorba l\u00e9ze na v\u011btvi\u010dce jasanu, Arboretum K\u0159tiny 2008.\" data-attachment-id=\"5313\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img fetchpriority=\"high\" decoding=\"async\" title=\"Tvorba l\u00e9ze na v\u011btvi\u010dce jasanu, Arboretum K\u0159tiny 2008.\" width=\"365\" height=\"320\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2020\/02\/P923080623092009_118\/145717223.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22365%22%20height%3D%22320%22%20viewBox%3D%220%200%20365%20320%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-desc\">Tvorba l\u00e9ze na v\u011btvi\u010dce jasanu, Arboretum K\u0159tiny 2008.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/2020\/02\/P923080323092009_115.jpg\" data-caption-title=\"Detail usych\u00e1n\u00ed list\u016f p\u0159i n\u00e1kaze, Arboretum K\u0159tiny 2010,\" data-caption-desc=\"Detail usych\u00e1n\u00ed list\u016f p\u0159i n\u00e1kaze, Arboretum K\u0159tiny 2010,\" data-attachment-id=\"5312\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Detail usych\u00e1n\u00ed list\u016f p\u0159i n\u00e1kaze, Arboretum K\u0159tiny 2010,\" width=\"365\" height=\"320\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2020\/02\/P923080323092009_115\/2102208191.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22365%22%20height%3D%22320%22%20viewBox%3D%220%200%20365%20320%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-desc\">Detail usych\u00e1n\u00ed list\u016f p\u0159i n\u00e1kaze, Arboretum K\u0159tiny 2010,<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/2020\/02\/IMG_3850.jpg\" data-caption-title=\"Zasych\u00e1n\u00ed list\u016f jasanu vlivem infekce, \u0160LP ML Brno 2010.\" data-caption-desc=\"Zasych\u00e1n\u00ed list\u016f jasanu vlivem infekce, \u0160LP ML Brno 2010.\" data-attachment-id=\"5305\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Zasych\u00e1n\u00ed list\u016f jasanu vlivem infekce, \u0160LP ML Brno 2010.\" width=\"365\" height=\"320\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2020\/02\/IMG_3850\/1340530678.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22365%22%20height%3D%22320%22%20viewBox%3D%220%200%20365%20320%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-desc\">Zasych\u00e1n\u00ed list\u016f jasanu vlivem infekce, \u0160LP ML Brno 2010.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>V\u00ddZNAM A OCHRANA:<\/strong> napaden\u00e9 d\u0159eviny bu\u010f p\u0159e\u017e\u00edvaj\u00ed, sna\u017e\u00ed se o regeneraci tvorbou vlk\u016f, nov\u00fdch v\u00fdhon\u016f anebo postupn\u011b za p\u016fsoben\u00ed dal\u0161\u00edch faktor\u016f jako je napaden\u00ed hmyzem, nedostatek vody, p\u016fsoben\u00ed jin\u00fdch houbov\u00fdch patogen\u016f odum\u00edraj\u00ed.<\/p>\n\n\n\n<p><strong>MO\u017dNOST Z\u00c1M\u011aNY:<\/strong> podobn\u00e9 je po\u0161kozen\u00ed mrazem, hlavn\u011b v p\u0159edjarn\u00edm a jarn\u00edm obdob\u00ed je snadno zam\u011bniteln\u00e9 s nekr\u00f3zou jasanu. <\/p>\n\n\n\n<p><\/p>\n\n\n<style type=\"text\/css\">\n#foogallery-gallery-2744 .fg-image { width: 560px; }\n#foogallery-gallery-2744 { --fg-gutter: 10px; }<\/style>\n\t\t\t<div class=\"foogallery foogallery-container foogallery-default foogallery-lightbox-none fg-left fg-default fg-ready fg-light fg-border-thin fg-shadow-outline fg-loading-default fg-loaded-fade-in fg-caption-always fg-hover-fade fg-hover-zoom\" id=\"foogallery-gallery-2744\" data-foogallery=\"{&quot;item&quot;:{&quot;showCaptionTitle&quot;:false,&quot;showCaptionDescription&quot;:true},&quot;lazy&quot;:true}\" style=\"--fg-title-line-clamp: 0; --fg-description-line-clamp: 0;\" >\n\t<div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/2020\/02\/P610279510062010_02.jpg\" data-caption-title=\"Symptomy prosych\u00e1n\u00ed koruny jasanu, Arboretum K\u0159tiny 2012.\" data-caption-desc=\"Symptomy prosych\u00e1n\u00ed koruny jasanu, Arboretum K\u0159tiny 2012.\" data-attachment-id=\"5311\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Symptomy prosych\u00e1n\u00ed koruny jasanu, Arboretum K\u0159tiny 2012.\" width=\"560\" height=\"430\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2020\/02\/P610279510062010_02\/2447710630.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22560%22%20height%3D%22430%22%20viewBox%3D%220%200%20560%20430%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-desc\">Symptomy prosych\u00e1n\u00ed koruny jasanu, Arboretum K\u0159tiny 2012.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/2020\/02\/P8105187.jpg\" data-caption-title=\"Symptomy prosych\u00e1n\u00ed koruny jasanu, Arboretum K\u0159tiny 2008.\" data-caption-desc=\"Symptomy prosych\u00e1n\u00ed koruny jasanu, Arboretum K\u0159tiny 2008.\" data-attachment-id=\"5310\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Symptomy prosych\u00e1n\u00ed koruny jasanu, Arboretum K\u0159tiny 2008.\" width=\"560\" height=\"430\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2020\/02\/P8105187\/2657220646.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22560%22%20height%3D%22430%22%20viewBox%3D%220%200%20560%20430%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-desc\">Symptomy prosych\u00e1n\u00ed koruny jasanu, Arboretum K\u0159tiny 2008.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><\/div>\n\n\n\n<p><\/p>\n\n\n<style type=\"text\/css\">\n#foogallery-gallery-2748 .fg-image { width: 365px; }\n#foogallery-gallery-2748 { --fg-gutter: 10px; }<\/style>\n\t\t\t<div class=\"foogallery foogallery-container foogallery-default foogallery-lightbox-none fg-left fg-default fg-ready fg-light fg-border-thin fg-shadow-outline fg-loading-default fg-loaded-fade-in fg-caption-always fg-hover-fade fg-hover-zoom\" id=\"foogallery-gallery-2748\" data-foogallery=\"{&quot;item&quot;:{&quot;showCaptionTitle&quot;:false,&quot;showCaptionDescription&quot;:true},&quot;lazy&quot;:true}\" style=\"--fg-title-line-clamp: 0; --fg-description-line-clamp: 0;\" >\n\t<div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/2020\/02\/IMG_3855.jpg\" data-caption-title=\"Tvorba l\u00e9ze na km\u00ednku jasanu, Arboretum K\u0159tiny 2008.\" data-caption-desc=\"Tvorba l\u00e9ze na km\u00ednku jasanu, Arboretum K\u0159tiny 2008.\" data-attachment-id=\"5308\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Tvorba l\u00e9ze na km\u00ednku jasanu, Arboretum K\u0159tiny 2008.\" width=\"365\" height=\"320\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2020\/02\/IMG_3855\/1933379203.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22365%22%20height%3D%22320%22%20viewBox%3D%220%200%20365%20320%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-desc\">Tvorba l\u00e9ze na km\u00ednku jasanu, Arboretum K\u0159tiny 2008.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/2020\/02\/IMG_3849.jpg\" data-caption-title=\"Zasych\u00e1n\u00ed list\u016f jasanu vlivem infekce, Brno 2010.\" data-caption-desc=\"Zasych\u00e1n\u00ed list\u016f jasanu vlivem infekce, Brno 2010.\" data-attachment-id=\"5304\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Zasych\u00e1n\u00ed list\u016f jasanu vlivem infekce, Brno 2010.\" width=\"365\" height=\"320\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2020\/02\/IMG_3849\/1035487377.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22365%22%20height%3D%22320%22%20viewBox%3D%220%200%20365%20320%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-desc\">Zasych\u00e1n\u00ed list\u016f jasanu vlivem infekce, Brno 2010.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><div class=\"fg-item fg-type-image fg-idle\"><figure class=\"fg-item-inner\"><a href=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/2020\/02\/IMG_3852.jpg\" data-caption-title=\"Nekr\u00f3za na km\u00ednku jasanu, Arboretum K\u0159tiny 2008.\" data-caption-desc=\"Nekr\u00f3za na km\u00ednku jasanu, Arboretum K\u0159tiny 2008.\" data-attachment-id=\"5307\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Nekr\u00f3za na km\u00ednku jasanu, Arboretum K\u0159tiny 2008.\" width=\"365\" height=\"320\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2020\/02\/IMG_3852\/2575667299.jpg\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22365%22%20height%3D%22320%22%20viewBox%3D%220%200%20365%20320%22%3E%3C%2Fsvg%3E\" loading=\"eager\"><\/span><span class=\"fg-image-overlay\"><\/span><\/a><figcaption class=\"fg-caption\"><div class=\"fg-caption-inner\"><div class=\"fg-caption-desc\">Nekr\u00f3za na km\u00ednku jasanu, Arboretum K\u0159tiny 2008.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hymenoscyphus fraxineus&nbsp;(T. Kowalski) Baral, Queloz &amp; Hosoya \u2013 voskovi\u010dka jasanov\u00e1 SYNONYMUM: Hymenoscyphus pseudoalbidus Queloz, Gr\u00fcnig, [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-full-width.php","meta":{"footnotes":""},"class_list":["post-681","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/pages\/681","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/comments?post=681"}],"version-history":[{"count":9,"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/pages\/681\/revisions"}],"predecessor-version":[{"id":5314,"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/pages\/681\/revisions\/5314"}],"wp:attachment":[{"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/media?parent=681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}