{"id":3054,"date":"2020-02-25T16:13:39","date_gmt":"2020-02-25T15:13:39","guid":{"rendered":"http:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/?page_id=3054"},"modified":"2024-11-06T13:35:34","modified_gmt":"2024-11-06T12:35:34","slug":"medovnice-dubova","status":"publish","type":"page","link":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/medovnice-dubova\/","title":{"rendered":"medovnice dubov\u00e1"},"content":{"rendered":"\n<p class=\"has-medium-font-size\"><strong><em>Lachnus roboris<\/em> (Linnaeus, 1758) <\/strong><\/p>\n\n\n\n<p>TAXONOMICK\u00c9 ZA\u0158AZEN\u00cd:<br>\u0158\u00e1d: polok\u0159\u00eddl\u00ed (Hemiptera)<br>Pod\u0159\u00e1d: m\u0161icosav\u00ed (Auchenorrhyncha)<br>Nad\u010dele\u010f: m\u0161ice (Aphidoidea)<br>\u010cele\u010f: m\u0161icovit\u00ed (Aphididae)<br>Pod\u010dele\u010f: medovnice (Lachninae)<br>Rod: medovnice (<em>Lachnus<\/em>)<\/p>\n\n\n\n<p><strong>HOSTITELSK\u00c9 D\u0158EVINY: <\/strong>dub (<em>Quercus<\/em> spp.)<\/p>\n\n\n\n<p><strong>POPIS DRUHU: <\/strong>medovnice dubov\u00e1 je relativn\u011b velk\u00e1, monocyklick\u00e1 m\u0161ice \u017eij\u00edc\u00ed v\u00a0korun\u00e1ch dub\u016f.Bezk\u0159\u00eddl\u00e9 sami\u010dky, dor\u016fstaj\u00edc\u00ed velikosti 3,5-5 mm, jsou leskl\u00e9, s tmav\u011b hn\u011bd\u00fdm a\u017e \u0161edo\u010dern\u00fdm zbarven\u00edm. Jejich dlouh\u00e9, tenk\u00e9, \u017elutav\u011b hn\u011bd\u00e9 nohy n\u00e1padn\u011b kontrastuj\u00ed se zavalit\u00fdm t\u011bl\u00ed\u010dkem. Siln\u00e9, ku\u017eelovit\u00e9 sifunkuly jsou kr\u00e1tk\u00e9 a \u010dern\u00e9. Tykadla jsou relativn\u011b dlouh\u00e1, sv\u011btle \u017elutohn\u011bd\u00e1. Ok\u0159\u00eddlen\u00e9 sami\u010dky jsou velmi podobn\u00e9. Jejich p\u0159edn\u00ed k\u0159\u00eddla jsou z\u00a0velk\u00e9 \u010d\u00e1sti tmav\u011b zakou\u0159en\u00e1. Nymfy jsou tvarem i zbarven\u00edm rovn\u011b\u017e velmi podobn\u00e9 dosp\u011blc\u016fm. Medovnice dubov\u00e1 vytv\u00e1\u0159\u00ed zpravidla velk\u00e9 kolonie, kter\u00e9mnohdy pokr\u00fdvaj\u00ed cel\u00fd povrch os\u00eddlen\u00fdch v\u011btv\u00ed. N\u011bkte\u0159\u00ed jedinci se v\u0161ak zdr\u017euj\u00ed samostatn\u011b a do koloni\u00ed se neshlukuj\u00ed. P\u0159esto\u017ee tato m\u0161ice neprodukuje n\u00e1padn\u00e9 voskov\u00e9 v\u00fdpotky, jej\u00ed p\u0159\u00edtomnost prozrad\u00ed siln\u00e1 produkce medovice, respektive medovici vyhled\u00e1vaj\u00edc\u00ed mravenci a\u00a0\u010dern\u011bmi porostl\u00e1 medovice na listech, k\u016f\u0159e \u010di zemi pod korunami strom\u016f. <\/p>\n\n\n\n<p><\/p>\n\n\n<style type=\"text\/css\">\n#foogallery-gallery-3584 .fg-image { width: 560px; }\n#foogallery-gallery-3584 { --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-3584\" 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\/2024\/11\/001-prezimujici-vajicka.jpg\" data-caption-title=\"Vaj\u00ed\u010dka, Pardubice 2007.\" data-caption-desc=\"Vaj\u00ed\u010dka, Pardubice 2007.\" data-attachment-id=\"4712\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img fetchpriority=\"high\" decoding=\"async\" title=\"Vaj\u00ed\u010dka, Pardubice 2007.\" width=\"560\" height=\"430\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2024\/11\/001-prezimujici-vajicka\/2394762151.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\">Vaj\u00ed\u010dka, Pardubice 2007.<\/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\/2024\/11\/002-bezkridle-samicky.jpg\" data-caption-title=\"Bezk\u0159\u00eddl\u00e9 sami\u010dky, Brno 2009.\" data-caption-desc=\"Bezk\u0159\u00eddl\u00e9 sami\u010dky, Brno 2009.\" data-attachment-id=\"4713\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Bezk\u0159\u00eddl\u00e9 sami\u010dky, Brno 2009.\" width=\"560\" height=\"430\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2024\/11\/002-bezkridle-samicky\/1842407884.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\">Bezk\u0159\u00eddl\u00e9 sami\u010dky, Brno 2009.<\/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\/2024\/11\/003-okridlena-samicka.jpg\" data-caption-title=\"Ok\u0159\u00eddlen\u00e1 sami\u010dka, Brno 2006.\" data-caption-desc=\"Ok\u0159\u00eddlen\u00e1 sami\u010dka, Brno 2006.\" data-attachment-id=\"4714\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Ok\u0159\u00eddlen\u00e1 sami\u010dka, Brno 2006.\" width=\"560\" height=\"430\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2024\/11\/003-okridlena-samicka\/1445455474.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\">Ok\u0159\u00eddlen\u00e1 sami\u010dka, Brno 2006.<\/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\/2024\/11\/004-silne-napadena-vetev.jpg\" data-caption-title=\"Siln\u00e9 napaden\u00ed v\u011btv\u00ed dubu, Brno 2009.\" data-caption-desc=\"Siln\u00e9 napaden\u00ed v\u011btv\u00ed dubu, Brno 2009.\" data-attachment-id=\"4715\" data-type=\"image\" class=\"fg-thumb\"><span class=\"fg-image-wrap\"><img decoding=\"async\" title=\"Siln\u00e9 napaden\u00ed v\u011btv\u00ed dubu, Brno 2009.\" width=\"560\" height=\"430\" class=\"skip-lazy fg-image\" data-src-fg=\"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/wp-content\/uploads\/cache\/2024\/11\/004-silne-napadena-vetev\/1934901732.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\">Siln\u00e9 napaden\u00ed v\u011btv\u00ed dubu, Brno 2009.<\/div><\/div><\/figcaption><\/figure><div class=\"fg-loader\"><\/div><\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>EKOLOGIE DRUHU:<\/strong> na\u00a0ja\u0159e se z p\u0159ezimuj\u00edc\u00edch vaj\u00ed\u010dek, kter\u00e1 mnohdy pokr\u00fdvaj\u00ed celou v\u011btvi\u010dku, l\u00edhnou prvn\u00ed nymfy \u2013 budouc\u00ed zakladatelky. Zakladatelky bez oplozen\u00ed rod\u00ed dal\u0161\u00ed pokolen\u00ed \u017eiv\u00fdch nymf, z\u00a0nich\u017e se vyv\u00edjej\u00ed bezk\u0159\u00eddl\u00e9 i ok\u0159\u00eddlen\u00e9 partenogenetick\u00e9 sami\u010dky. Ok\u0159\u00eddlen\u00e9 sami\u010dky se \u0161\u00ed\u0159\u00ed na jin\u00e9 v\u011btve v\u00a0korun\u011b stromu nebo na dal\u0161\u00ed, v\u00a0okol\u00ed rostouc\u00ed duby, kde zakl\u00e1daj\u00ed nov\u00e9 kolonie. B\u011bhem l\u00e9ta se vyvine n\u011bkolik generac\u00ed. Posledn\u00ed pokolen\u00ed je bezk\u0159\u00eddl\u00e9 a zakl\u00e1d\u00e1 oboupohlavn\u00ed generaci samc\u016f a sami\u010dek. V\u00a0pr\u016fb\u011bhu z\u00e1\u0159\u00ed a \u0159\u00edjna, p\u0159\u00edpadn\u011b za\u010d\u00e1tkem listopadu kladou oplodn\u011bn\u00e9 sami\u010dky \u017elutav\u011b a\u017e oran\u017eov\u011b hn\u011bd\u00e1 vaj\u00ed\u010dka, kter\u00e1 n\u00e1sledn\u011b \u010dernaj\u00ed. Vaj\u00ed\u010dka jsou kladena v\u00a0t\u011bsn\u00e9 bl\u00edzkosti jedno vedle druh\u00e9ho na k\u016fru mlad\u00fdch v\u011btv\u00ed. <\/p>\n\n\n\n<p><strong>V\u00ddZNAM DRUHU: <\/strong>medovnice dubov\u00e1 saje nej\u010dast\u011bji na mlad\u00fdch, 1\u20135 let star\u00fdch v\u011btv\u00edch nejr\u016fzn\u011bj\u0161\u00edch druh\u016f dub\u016f. I kdy\u017e jej\u00ed rozs\u00e1hl\u00e9 kolonie ob\u010das upoutaj\u00ed pozornost a vzbud\u00ed obavy, jejich po\u0161kozen\u00ed je zpravidla zanedbateln\u00e9. Drobn\u00e9 \u0161kody v\u00a0podob\u011b odum\u00edr\u00e1n\u00ed jednotliv\u00fdch v\u011bt\u00e9vek mohou zp\u016fsobit sp\u00ed\u0161e na mlad\u0161\u00edch d\u0159evin\u00e1ch, kde v\u0161ak b\u00fdv\u00e1 v\u011bt\u0161\u00edm probl\u00e9mem vzhledov\u00e9 po\u0161kozen\u00ed d\u0159evin zp\u016fsoben\u00e9 velk\u00fdmi plochami p\u0159\u00edtomn\u00fdch \u010dern\u00ed. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lachnus roboris (Linnaeus, 1758) TAXONOMICK\u00c9 ZA\u0158AZEN\u00cd:\u0158\u00e1d: polok\u0159\u00eddl\u00ed (Hemiptera)Pod\u0159\u00e1d: m\u0161icosav\u00ed (Auchenorrhyncha)Nad\u010dele\u010f: m\u0161ice (Aphidoidea)\u010cele\u010f: m\u0161icovit\u00ed (Aphididae)Pod\u010dele\u010f: medovnice [&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-3054","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/pages\/3054","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=3054"}],"version-history":[{"count":3,"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/pages\/3054\/revisions"}],"predecessor-version":[{"id":3778,"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/pages\/3054\/revisions\/3778"}],"wp:attachment":[{"href":"https:\/\/rumex.mendelu.cz\/atlasposkozenidrevin\/index.php\/wp-json\/wp\/v2\/media?parent=3054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}