{"id":7250,"date":"2020-11-13T06:51:16","date_gmt":"2020-11-13T06:51:16","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=7250"},"modified":"2020-11-13T06:51:16","modified_gmt":"2020-11-13T06:51:16","slug":"ash-trees-identification-benefits-and-care","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/life\/nature-and-environment\/ash-trees-identification-benefits-and-care\/","title":{"rendered":"Jasan ztepil\u00fd: Identifikace, p\u0159\u00ednosy a p\u00e9\u010de"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Jasan: identifikace, p\u0159\u00ednosy a p\u00e9\u010de<\/h2>\n\n<h2 class=\"wp-block-heading\">Identifikace<\/h2>\n\n<p>Jasany (Fraxinus spp.) jsou rod listnat\u00fdch strom\u016f pat\u0159\u00edc\u00ed do \u010deledi olivovn\u00edkovit\u00fdch (Oleaceae). Vyzna\u010duj\u00ed se sv\u00fdm vst\u0159\u00edcn\u00fdm v\u011btven\u00edm, slo\u017een\u00fdmi listy tvo\u0159en\u00fdmi skupinami l\u00edstk\u016f a v\u00fdraznou k\u016frou, kter\u00e1 se li\u0161\u00ed podle druhu.<\/p>\n\n<h2 class=\"wp-block-heading\">P\u0159\u00ednosy<\/h2>\n\n<p>Jasany jsou vysoce cen\u011bny pro sv\u00e9 estetick\u00e9 a ekologick\u00e9 p\u0159\u00ednosy. Poskytuj\u00ed st\u00edn dom\u016fm a podnik\u016fm, sni\u017euj\u00ed zne\u010di\u0161t\u011bn\u00ed ovzdu\u0161\u00ed a podporuj\u00ed divokou zv\u011b\u0159. Jejich d\u0159evo je tak\u00e9 cen\u011bno pro svou pevnost a trvanlivost.<\/p>\n\n<h2 class=\"wp-block-heading\">Smaragdov\u00fd jasanovec jasanowy<\/h2>\n\n<p>Smaragdov\u00fd jasanovec jasanowy (Agrilus planipennis) je ni\u010div\u00fd invazivn\u00ed \u0161k\u016fdce, kter\u00fd zdecimoval populace jasan\u016f po cel\u00e9 Severn\u00ed Americe. Dosp\u011bl\u00fd brouk zp\u016fsobuje jen mal\u00e9 \u0161kody, ale jeho larvy se \u017eiv\u00ed vnit\u0159n\u00edmi tk\u00e1n\u011bmi stromu a naru\u0161uj\u00ed jeho schopnost transportovat vodu a \u017eiviny.<\/p>\n\n<h2 class=\"wp-block-heading\">Identifikace napaden\u00ed<\/h2>\n\n<p>Hledejte n\u00e1sleduj\u00edc\u00ed p\u0159\u00edznaky napaden\u00ed smaragdov\u00fdm jasanem:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Loup\u00e1n\u00ed k\u016fry ve vrchn\u00edch v\u011btv\u00edch<\/li>\n<li>Such\u00e9 v\u011btve v horn\u00ed \u010d\u00e1sti stromu<\/li>\n<li>Praskliny v k\u016f\u0159e zp\u016fsoben\u00e9 larvami hrabaj\u00edc\u00edmi tunely pod k\u016frou<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">\u0158\u00edzen\u00ed smaragdov\u00e9ho jasanov\u00e9ho o\u0159e\u0161\u00e1ka<\/h2>\n\n<p>Chcete-li chr\u00e1nit jasany p\u0159ed smaragdov\u00fdm jasanov\u00fdm o\u0159e\u0161\u00e1kem, zva\u017ete n\u00e1sleduj\u00edc\u00ed opat\u0159en\u00ed:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>O\u0161et\u0159en\u00ed insekticidem:<\/strong> Syst\u00e9mov\u00e9 insekticidy obsahuj\u00edc\u00ed imidakloprid lze aplikovat jako z\u00e1livku p\u016fdy pro ochranu jednotliv\u00fdch strom\u016f.<\/li>\n<li><strong>Biologick\u00e1 kontrola:<\/strong> V\u011bdci zkoumaj\u00ed vyu\u017eit\u00ed p\u0159irozen\u00fdch pred\u00e1tor\u016f a biologick\u00fdch prost\u0159edk\u016f ke kontrole \u0161\u00ed\u0159en\u00ed brouka.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Druhy jasan\u016f<\/h2>\n\n<p>Existuje mnoho druh\u016f jasan\u016f, z nich\u017e ka\u017ed\u00fd m\u00e1 sv\u00e9 vlastn\u00ed jedine\u010dn\u00e9 vlastnosti. Zde je n\u011bkolik obl\u00edben\u00fdch druh\u016f:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Jasan \u010dern\u00fd (Fraxinus nigra):<\/strong> P\u016fvodem z v\u00fdchodn\u00ed Severn\u00ed Ameriky je \u010dern\u00fd jasan zn\u00e1m\u00fd sv\u00fdm poddajn\u00fdm d\u0159evem, kter\u00e9 se pou\u017e\u00edv\u00e1 v tkalcovstv\u00ed a ko\u0161\u00edk\u00e1\u0159stv\u00ed.<\/li>\n<li><strong>Jasan zelen\u00fd (Fraxinus pennsylvanica):<\/strong> Vyskytuje se ve v\u00fdchodn\u00ed a severn\u00ed \u010d\u00e1sti Severn\u00ed Ameriky, zelen\u00fd jasan je b\u011b\u017en\u00fd st\u00ednov\u00fd strom, kter\u00fd sn\u00e1\u0161\u00ed m\u011bstsk\u00e9 podm\u00ednky.<\/li>\n<li><strong>Jasan b\u00edl\u00fd (Fraxinus americana):<\/strong> Velk\u00fd, majest\u00e1tn\u00ed strom poch\u00e1zej\u00edc\u00ed z v\u00fdchodn\u00ed Severn\u00ed Ameriky, b\u00edl\u00fd jasan je vysoce cen\u011bn pro sv\u00e9 siln\u00e9 a trvanliv\u00e9 d\u0159evo.<\/li>\n<li><strong>Jasan modr\u00fd (Fraxinus quadrangulata):<\/strong> P\u016fvodem ze St\u0159edoz\u00e1padu je modr\u00fd jasan pojmenov\u00e1n podle namodral\u00e9ho odst\u00ednu sv\u00e9 vnit\u0159n\u00ed k\u016fry. Je pova\u017eov\u00e1n za pon\u011bkud odoln\u00fd v\u016f\u010di smaragdov\u00e9mu jasanov\u00e9mu jasanu.<\/li>\n<li><strong>Kalifornsk\u00fd jasan (Fraxinus dipetala):<\/strong> Ke\u0159 nebo mal\u00fd strom poch\u00e1zej\u00edc\u00ed z Kalifornie, Arizony, Utahu a Nevady, kalifornsk\u00fd jasan je dob\u0159e p\u0159izp\u016fsoben podm\u00ednk\u00e1m sucha.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">P\u00e9\u010de a \u00fadr\u017eba<\/h2>\n\n<p>Jasany se relativn\u011b snadno p\u011bstuj\u00ed a udr\u017euj\u00ed. Up\u0159ednost\u0148uj\u00ed pln\u00e9 slunce a dob\u0159e odvodn\u011bnou p\u016fdu. Zal\u00e9v\u00e1n\u00ed je nutn\u00e9 pouze b\u011bhem dlouhodob\u00e9ho sucha nebo vysok\u00fdch teplot. Pro\u0159ez\u00e1v\u00e1n\u00ed by m\u011blo b\u00fdt omezeno na odstran\u011bn\u00ed mrtv\u00fdch v\u011btv\u00ed. Hnojen\u00ed obvykle nen\u00ed nutn\u00e9, pokud nen\u00ed r\u016fst slab\u00fd.<\/p>\n\n<h2 class=\"wp-block-heading\">\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n\n<ul class=\"wp-block-list\">\n<li><strong>Jak\u00e9 jsou probl\u00e9my s jasany?<\/strong> Smaragdov\u00fd jasan je hlavn\u00ed hrozbou pro jasany. Mohou je ovlivnit i dal\u0161\u00ed \u0161k\u016fdci a choroby.<\/li>\n<li><strong>Rostou jasany rychle?<\/strong> Ano, jasany maj\u00ed obvykle rychlou rychlost r\u016fstu.<\/li>\n<li><strong>Pot\u0159ebuj\u00ed jasany hodn\u011b vody?<\/strong> Mlad\u00e9 jasany pot\u0159ebuj\u00ed pravidelnou z\u00e1livku, zat\u00edmco dosp\u011bl\u00e9 stromy vy\u017eaduj\u00ed pouze p\u0159\u00edle\u017eitostnou z\u00e1livku b\u011bhem sucha.<\/li>\n<li><strong>Kter\u00e9 stromy jsou zam\u011b\u0148ov\u00e1ny s jasany?<\/strong> Jasany lze zam\u011bnit s o\u0159echovci nebo o\u0159e\u0161\u00e1ky kv\u016fli jejich slo\u017een\u00fdm list\u016fm. Jasany v\u0161ak maj\u00ed koso\u010dtvere\u010dnou br\u00e1zdovanou k\u016fru a neplod\u00ed o\u0159echy.<\/li>\n<li><strong>Kde rostou jasany nejl\u00e9pe?<\/strong> Jasany mohou r\u016fst v r\u016fzn\u00fdch typech p\u016fdy a \u00farovn\u00edch pH, ale obecn\u011b d\u00e1vaj\u00ed p\u0159ednost pln\u00e9mu slunci.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Z\u00e1v\u011br<\/h2>\n\n<p>Jasany jsou cenn\u00fdmi dopl\u0148ky jak\u00e9koli krajiny nebo ekosyst\u00e9mu. Pochopen\u00edm jejich identifikace, v\u00fdhod a po\u017eadavk\u016f na p\u00e9\u010di m\u016f\u017eete pomoci chr\u00e1nit a zachovat tyto majest\u00e1tn\u00ed stromy.<\/p>","protected":false},"excerpt":{"rendered":"<p>Jasan: identifikace, p\u0159\u00ednosy a p\u00e9\u010de Identifikace Jasany (Fraxinus spp.) jsou rod listnat\u00fdch strom\u016f pat\u0159\u00edc\u00ed do \u010deledi olivovn\u00edkovit\u00fdch (Oleaceae). Vyzna\u010duj\u00ed se sv\u00fdm vst\u0159\u00edcn\u00fdm v\u011btven\u00edm, slo\u017een\u00fdmi listy tvo\u0159en\u00fdmi skupinami l\u00edstk\u016f a v\u00fdraznou&hellip;<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[237],"tags":[11715,11714,11713,8819,9177,252],"class_list":["post-7250","post","type-post","status-publish","format-standard","hentry","category-nature-and-environment","tag-emerald-ash-borer","tag-tree-identification","tag-ash-trees","tag-landscaping","tag-tree-care","tag-nature"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/7250","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=7250"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/7250\/revisions"}],"predecessor-version":[{"id":7251,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/7250\/revisions\/7251"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=7250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=7250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=7250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}