{"id":9382,"date":"2026-05-18T21:00:04","date_gmt":"2026-05-18T18:00:04","guid":{"rendered":"https:\/\/zprim.com.ua\/uk-uachomu-na-listi-zjavljajutsja-pljami-i-scho-z-tsim-robiti-ru\/"},"modified":"2026-05-18T21:00:04","modified_gmt":"2026-05-18T18:00:04","slug":"uk-uachomu-na-listi-zjavljajutsja-pljami-i-scho-z-tsim-robiti-ru","status":"publish","type":"post","link":"https:\/\/zprim.com.ua\/cs\/uk-uachomu-na-listi-zjavljajutsja-pljami-i-scho-z-tsim-robiti-ru\/","title":{"rendered":"Pro\u010d se na listech objevuj\u00ed skvrny (a co s t\u00edm d\u011blat)"},"content":{"rendered":"<p>Hn\u011bd\u00e9 skvrny na listech nejsou esteticky p\u0159\u00edjemn\u00e9. Ve v\u011bt\u0161in\u011b p\u0159\u00edpad\u016f se jedn\u00e1 o pl\u00eds\u0148ov\u00e1 onemocn\u011bn\u00ed. Naru\u0161uj\u00ed proces fotosynt\u00e9zy a oslabuj\u00ed rostlinu. I kdy\u017e se probl\u00e9m \u010dasto zd\u00e1 \u010dist\u011b kosmetick\u00fd, nelze jej ignorovat \u2013 situace se zhor\u0161\u00ed. Ale m\u016f\u017ee\u0161 to zastavit. <strong>Preventivn\u00ed opat\u0159en\u00ed jsou kritick\u00e1.<\/strong> <\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0417\u043c\u0456\u0441\u0442<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a0ba631855d6\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a0ba631855d6\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/zprim.com.ua\/cs\/uk-uachomu-na-listi-zjavljajutsja-pljami-i-scho-z-tsim-robiti-ru\/#Co_je_to\" >Co je to?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/zprim.com.ua\/cs\/uk-uachomu-na-listi-zjavljajutsja-pljami-i-scho-z-tsim-robiti-ru\/#Duvody\" >D\u016fvody<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/zprim.com.ua\/cs\/uk-uachomu-na-listi-zjavljajutsja-pljami-i-scho-z-tsim-robiti-ru\/#Hlavni_%E2%80%9Cpadousi%E2%80%9D\" >Hlavn\u00ed &#8220;padou\u0161i&#8221;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/zprim.com.ua\/cs\/uk-uachomu-na-listi-zjavljajutsja-pljami-i-scho-z-tsim-robiti-ru\/#Lecba_a_prevence\" >L\u00e9\u010dba a prevence<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Co_je_to\"><\/span>Co je to?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Vysok\u00e1 vlhkost zab\u00edj\u00ed cirkulaci vzduchu. Listy z\u016fst\u00e1vaj\u00ed vlhk\u00e9 a slune\u010dn\u00ed sv\u011btlo k nim nepronikne. Tak za\u010d\u00edn\u00e1 skvrnitost list\u016f. <\/p>\n<p>Samotn\u00e9 skvrny vypadaj\u00ed neupraven\u011b: mohou b\u00fdt \u010dern\u00e9, hn\u011bd\u00e9, \u010derven\u00e9 nebo oran\u017eov\u00e9. Tvar se li\u0161\u00ed od kulat\u00e9ho po hranat\u00fd. Typicky onemocn\u011bn\u00ed za\u010d\u00edn\u00e1 ve spodn\u00ed \u010d\u00e1sti rostliny a postihuje vnit\u0159n\u00ed v\u011btve. N\u011bkdy jsou ve st\u0159edu skvrn vid\u011bt spory. <\/p>\n<p>M\u00edsto pl\u00edsn\u011b m\u016f\u017ee b\u00fdt na vin\u011b bakterie. Nap\u0159\u00edklad \u0161e\u0159\u00edky jsou n\u00e1chyln\u00e9 k bakteri\u00e1ln\u00ed skvrnitosti. Na listech se objevuj\u00ed mal\u00e9 tmav\u00e9 zna\u010dky obklopen\u00e9 \u017elut\u00fdm halo. \u010casem vyschnou a na jejich m\u00edst\u011b z\u016fstanou d\u00edrky. Nakonec se skvrny spoj\u00ed a cel\u00fd list se zm\u011bn\u00ed na \u010dernohn\u011bd\u00fd. Nevzhledn\u00fd. <\/p>\n<h3><span class=\"ez-toc-section\" id=\"Duvody\"><\/span>D\u016fvody<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Zbytky rostlin, kter\u00e9 z\u016fstaly p\u0159es zimu, se rozkl\u00e1daj\u00ed v hromad\u00e1ch zahradn\u00edho odpadu. Kdy\u017e p\u0159ijde jaro, pl\u00edsn\u011b se probud\u00ed a infekce se \u0161\u00ed\u0159\u00ed. <\/p>\n<p><strong>P\u0159\u00edli\u0161 hust\u00e1 v\u00fdsadba je nep\u0159\u00edtelem rostliny.<\/strong> Kdy\u017e se rostliny vz\u00e1jemn\u011b dot\u00fdkaj\u00ed, spory se snadno \u0161\u00ed\u0159\u00ed z jedn\u00e9 na druhou. Rostliny pot\u0159ebuj\u00ed prostor a slunce pot\u0159ebuje p\u0159\u00edstup vzduchu. Stagnuj\u00edc\u00ed, vlhk\u00e1 atmosf\u00e9ra \u017eiv\u00ed patogeny. <\/p>\n<p>Svou roli hraje i d\u00e9\u0161\u0165. P\u0159ehnan\u011b a brzy. Chladn\u00e9, vlhk\u00e9 prameny nas\u00e1knou listy vlhkost\u00ed. To jsou ide\u00e1ln\u00ed podm\u00ednky pro probl\u00e9my. <\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hlavni_%E2%80%9Cpadousi%E2%80%9D\"><\/span>Hlavn\u00ed &#8220;padou\u0161i&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Septoria.<\/strong> Kulat\u00e9 skvrny s \u010dern\u00fdm okrajem. Vypad\u00e1 jako pl\u00edse\u0148. Listy se svra\u0161\u0165uj\u00ed, \u010dernaj\u00ed a opad\u00e1vaj\u00ed. Spory \u201eusnou\u201c v p\u016fd\u011b a \u010dekaj\u00ed v k\u0159\u00eddlech. <\/p>\n<p><strong>Venturia.<\/strong> Ovliv\u0148uje rostliny brzy na ja\u0159e. Skvrny nepravideln\u00e9ho tvaru, zak\u0159iven\u00ed v\u00fdhonk\u016f. Infikuj\u00ed se pouze mlad\u00e9 v\u00fdhonky. Jak se bl\u00ed\u017e\u00ed l\u00e9to, tk\u00e1n\u011b jsou drsn\u011bj\u0161\u00ed. Ale nov\u00e9 v\u00fdhonky zem\u0159ou, strom se zdeformuje a zkrout\u00ed. Bez l\u00e9\u010dby? Strom sl\u00e1bne a st\u00e1v\u00e1 se zraniteln\u00fdm v\u016f\u010di jin\u00fdm \u0161k\u016fdc\u016fm. <\/p>\n<p><strong>Houba d\u00fdmka (Cedr-Apple Rust).<\/strong> Houba z no\u010dn\u00ed m\u016fry, kter\u00e1 napad\u00e1 jablon\u011b a jalovce. Kr\u00e1sn\u00e9 okrasn\u00e9 stromy se m\u011bn\u00ed v nevzhledn\u00e9 exempl\u00e1\u0159e. Na spodn\u00ed stran\u011b list\u016f a na plodech se objevuj\u00ed oran\u017eov\u00e9 nit\u011b. Tepl\u00e9 a vlhk\u00e9 po\u010das\u00ed je jeho obl\u00edben\u00fdm prost\u0159ed\u00edm. <\/p>\n<p><strong>Anthracnose<\/strong> Tmav\u00e9 skvrny, kter\u00e9 postihuj\u00ed mnoho druh\u016f strom\u016f. U javoru a jasanu vznikaj\u00ed nepravideln\u00e9 nekrotick\u00e9 oblasti. U dubu a platanu? Skvrny prob\u00edhaj\u00ed pod\u00e9l \u017eil. Dobr\u00e1 zpr\u00e1va? Ve \u0161kolk\u00e1ch se p\u011bstuj\u00ed odoln\u00e9 odr\u016fdy. Stoj\u00ed za to je zv\u00e1\u017eit. <\/p>\n<h3><span class=\"ez-toc-section\" id=\"Lecba_a_prevence\"><\/span>L\u00e9\u010dba a prevence<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Probl\u00e9my s velk\u00fdmi stromy? <strong>Najm\u011bte si profesion\u00e1ln\u00edho dendrologa.<\/strong> Ne\u010dt\u011bte \u010dajov\u00e9 l\u00edstky. <\/p>\n<p>Men\u0161\u00ed probl\u00e9my \u0159e\u0161te sami. Posti\u017een\u00e9 listy odst\u0159ihn\u011bte. Zlep\u0161ete cirkulaci vzduchu. Zal\u00e9vejte u ko\u0159ene, ne pod\u00e9l koruny. Udr\u017eujte svou zahradu \u010distou. <\/p>\n<p>Prost\u011b biologie d\u011bl\u00e1 sv\u00e9. Ale ty m\u00e1\u0161 lopatu. \ud83c\udf31<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hn\u011bd\u00e9 skvrny na listech nejsou esteticky p\u0159\u00edjemn\u00e9. Ve v\u011bt\u0161in\u011b p\u0159\u00edpad\u016f se jedn\u00e1 o pl\u00eds\u0148ov\u00e1 onemocn\u011bn\u00ed. Naru\u0161uj\u00ed proces fotosynt\u00e9zy a oslabuj\u00ed rostlinu. I kdy\u017e se probl\u00e9m \u010dasto zd\u00e1 \u010dist\u011b kosmetick\u00fd, nelze jej ignorovat \u2013 situace se zhor\u0161\u00ed. Ale m\u016f\u017ee\u0161 to zastavit. Preventivn\u00ed opat\u0159en\u00ed jsou kritick\u00e1. Co je to? Vysok\u00e1 vlhkost zab\u00edj\u00ed cirkulaci vzduchu. Listy z\u016fst\u00e1vaj\u00ed vlhk\u00e9 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9381,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":""},"categories":[1],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/zprim.com.ua\/cs\/wp-json\/wp\/v2\/posts\/9382"}],"collection":[{"href":"https:\/\/zprim.com.ua\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zprim.com.ua\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zprim.com.ua\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zprim.com.ua\/cs\/wp-json\/wp\/v2\/comments?post=9382"}],"version-history":[{"count":0,"href":"https:\/\/zprim.com.ua\/cs\/wp-json\/wp\/v2\/posts\/9382\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zprim.com.ua\/cs\/wp-json\/wp\/v2\/media\/9381"}],"wp:attachment":[{"href":"https:\/\/zprim.com.ua\/cs\/wp-json\/wp\/v2\/media?parent=9382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zprim.com.ua\/cs\/wp-json\/wp\/v2\/categories?post=9382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zprim.com.ua\/cs\/wp-json\/wp\/v2\/tags?post=9382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}