P\u0158EDSTAVUJEME BIOLOGICK\u00c9 \u0158E\u0160EN\u00cd OCHRANY V\u010cELSTEV, P\u0158ED PARAZIT\u00c1RN\u00cdM ONEMOCN\u011aN\u00cdM, ZP\u016eSOBEN\u00c9M ROZTO\u010cEM VARROA DESTRUCTOR<\/p>\n\n\n\n
Varro\u00e1za je parazit\u00e1rn\u00ed onemocn\u011bn\u00ed v\u010del, zp\u016fsoben\u00e9 rozto\u010dem kle\u0161t\u00edk v\u010del\u00ed (Varroa destructor), kter\u00fd parazituje jak na zav\u00ed\u010dkovan\u00e9m plodu, tak na dosp\u011bl\u00fdch v\u010del\u00e1ch. Varro\u00e1za v kombinaci s dal\u0161\u00edmi faktory, jako jsou vir\u00f3zy, chronick\u00e9 otravy, n\u00edzk\u00e1 \u00farove\u0148 zoohygieny, nedostate\u010dnost b\u00edlkovinn\u00e9 potravy, p\u016fsob\u00ed postupn\u00e9 sl\u00e1bnut\u00ed v\u010delstev, kter\u00e9 m\u016f\u017ee v\u00e9st a\u017e k jeho <\/a>kolapsu \u010di \u00fahynu.<\/p>\n\n\n\n K o\u0161et\u0159en\u00ed v\u010del proti varro\u00e1ze se pou\u017e\u00edvaj\u00ed r\u016fzn\u00e9 metody a postupy, nej\u010dast\u011bji registrovan\u00e9 veterin\u00e1rn\u00ed l\u00e9\u010div\u00e9 p\u0159\u00edpravky. P\u0159\u00edpadn\u011b chemick\u00e9 prost\u0159edky, kter\u00e9 p\u016fsob\u00ed na rozto\u010de ale maj\u00ed negativn\u00ed vliv i na v\u010dely.<\/p>\n\n\n\n Nab\u00edz\u00edme biologick\u00e9 \u0159e\u0161en\u00ed v podob\u011b aplikace drav\u00e9ho rozto\u010de Stratiolaelaps scimitus (d\u00e1le Stratiolaelaps s.), kter\u00fd se zam\u011b\u0159uje na likvidaci rozto\u010d\u016f, pro v\u010dely je v\u0161ak absolutn\u011b ne\u0161kodn\u00fd. Drav\u00ed rozto\u010di Stratiolaelaps s. aktivn\u011b vyhled\u00e1vaj\u00ed rozto\u010de varroa destructor a nakusuj\u00ed je. Zam\u011b\u0159uj\u00ed se p\u0159edev\u0161\u00edm na klouby nohou, kter\u00e9 roztrhnou a uvoln\u00ed tak hemolymfu, kterou se \u017eiv\u00ed. Kdy\u017e jsou rozto\u010di varroa destructor pokous\u00e1ni a spadnou, drav\u00ed rozto\u010di Stratiolaelaps s. z nich vysaj\u00ed t\u011bln\u00ed \u0161\u0165\u00e1vy.<\/p>\n\n\n\n Pak zase za\u010dnou hledat dal\u0161\u00ed ko\u0159ist. Drav\u00ed rozto\u010di Stratiolaelaps s. se nach\u00e1zej\u00ed v\u0161ude ve v\u010delstvu. Prol\u00e9zaj\u00ed skrze dno do \u00falu, kde hledaj\u00ed potravu. Tak\u00e9 si um\u00ed naj\u00edt kle\u0161t\u00edky p\u0159\u00edmo na v\u010del\u00e1ch. V n\u011bkter\u00fdch p\u0159\u00edpadech v\u010dely drav\u00e9 rozto\u010de Stratiolaelaps s. dokonce vyhled\u00e1vaj\u00ed. V\u011bd\u00ed, \u017ee v bl\u00edzkosti drav\u00fdch rozto\u010d\u016f Stratiolaelaps s. je kle\u0161t\u00edci neobt\u011b\u017euj\u00ed a sed\u00ed na dn\u011b \u00falu. Jakmile se rozto\u010di varroa destructor ji\u017e ve v\u010delstvu nevyskytuj\u00ed, drav\u00ed rozto\u010di Stratiolaelaps s. se st\u00e1hnou do substr\u00e1tu\/ra\u0161eliny a p\u0159e\u017e\u00edvaj\u00ed na jin\u00fdch organismech. Dosp\u011bl\u00e1 sami\u010dka Stratiolaelaps s. \u017eije 80-120 dn\u00ed p\u0159i 20 \u00b0C. V p\u0159\u00edpad\u011b, \u017ee hladov\u00ed, jsou schopn\u00ed \u017e\u00edt max. 50-60 dn\u00ed bez potravy.<\/p>\n\n\n\n Na jeden \u00fal posta\u010d\u00ed 5000 ks drav\u00fdch rozto\u010d\u016f Stratiolaelaps s.. Lze aplikovat celoro\u010dn\u011b, pokud je teplota nad 5 \u00b0C.<\/p>\n\n\n\n