{"id":5043,"date":"2025-08-26T05:21:43","date_gmt":"2025-08-26T05:21:43","guid":{"rendered":"http:\/\/www.benateckyctyrlistek.eu\/?p=5043"},"modified":"2025-07-02T07:48:45","modified_gmt":"2025-07-02T07:48:45","slug":"lykozrout-smrkovy","status":"publish","type":"post","link":"https:\/\/www.benateckyctyrlistek.eu\/?p=5043","title":{"rendered":"L\u00fdko\u017erout smrkov\u00fd"},"content":{"rendered":"

\"L\u00fdko\u017erout<\/a>L\u00fdko\u017erout smrkov\u00fd –\u00a0(Ips typographus)<\/strong>\u00a0Je z\u0159ejm\u011b nej\u0161kodliv\u011bj\u0161\u00ed hmyz\u00ed \u0161k\u016fdce v na\u0161em lesn\u00edm hospod\u00e1\u0159stv\u00ed, nejnebezpe\u010dn\u011bj\u0161\u00ed je p\u0159edev\u0161\u00edm v\u00a0oblastech rozs\u00e1hl\u00fdch smrkov\u00fdch monokultur. Brouk je p\u0159ibli\u017en\u011b 4,5 a\u017e 5,5 milimetru dlouh\u00fd, leskl\u00fd, hn\u011bd\u00e9 nebo hn\u011bdo\u010dern\u00e9 barvy. Krovky jsou na z\u00e1di vykrojen\u00e9, na okraj\u00edch vhlouben\u00e9 dutiny zdoben\u00e9 \u010dty\u0159mi p\u00e1ry zoubk\u016f. L\u00fdko\u017erout smrkov\u00fd napad\u00e1 p\u0159ev\u00e1\u017en\u011b smrkov\u00e9 porosty star\u0161\u00ed 60 let. Vyb\u00edr\u00e1 si p\u0159ednostn\u011b fyziologicky oslaben\u00e9 stromy, v\u00fdvraty, zlomy nebo stromy pok\u00e1cen\u00e9. P\u0159i p\u0159emno\u017een\u00ed v\u0161ak napad\u00e1 i stromy zcela zdrav\u00e9, kter\u00e9 dok\u00e1\u017ee zahubit za n\u011bkolik m\u00e1lo t\u00fddn\u016f. K\u016frovci za\u010d\u00ednaj\u00ed z jara naletovat na m\u00edsta t\u011bsn\u011b pod zelenou korunou strom\u016f a strom postupn\u011b os\u00eddluj\u00ed do koruny a k pat\u011b.<\/p>\n

Jak k\u016frovec \u0161kod\u00ed?<\/strong>
\nSame\u010dci nejprve v k\u016f\u0159e vyhlod\u00e1vaj\u00ed snubn\u00ed kom\u016frky, (po sloupnut\u00ed k\u016fry nen\u00ed v\u011bt\u0161inou vid\u011bt), z nich\u017e pak sami\u010dky vyhlod\u00e1vaj\u00ed 6 a\u017e 12 centimetr\u016f dlouh\u00e9, pod\u00e9ln\u00e9 mate\u010dn\u00e9 chodby, do nich\u017e kladou vaj\u00ed\u010dka. P\u0159\u00ed\u010dn\u00e9 larv\u00e1ln\u00ed chodby le\u017e\u00ed hust\u011b vedle sebe, vedou z mate\u010dn\u00e9 chodby a jsou ukon\u010deny kuklovou kol\u00e9bkou. Charakteristick\u00e9 po\u017eerky jsou podle po\u010dtu oplodn\u011bn\u00fdch sami\u010dek dvou a v\u00edce ramenn\u00e9. Vyl\u00edhl\u00ed mlad\u00ed brouci pak pokra\u010duj\u00ed v tzv. zralostn\u00edm \u017e\u00edru v m\u00edst\u011b kuklov\u00e9 kol\u00e9bky nebo napadaj\u00ed jin\u00e1 m\u00edsta kmene. Ve vhodn\u00fdch podm\u00ednk\u00e1ch m\u00e1 k\u016frovec a\u017e t\u0159i pokolen\u00ed do roka. \u00da\u010dinn\u00e1 ochrana spo\u010d\u00edv\u00e1 ve v\u010dasn\u00e9m vyhled\u00e1v\u00e1n\u00ed a asanaci napaden\u00fdch strom\u016f, d\u0159\u00edve ne\u017e k\u016frovci strom opust\u00ed a napadnou jin\u00e9 zdrav\u00e9 stromy.<\/p>\n

Ochrana a asanace<\/strong>
\nAsanace se prov\u00e1d\u00ed bu\u010f odkorn\u011bn\u00edm kmen\u016f, na nich\u017e se k\u016frovec vyskytuje v larv\u00e1ln\u00edm stadiu, nebo chemick\u00fdm o\u0161et\u0159en\u00edm insekticidy. Nejlep\u0161\u00ed ochranou je v\u0161ak preventivn\u00ed odstra\u0148ov\u00e1n\u00ed pro k\u016frovce atraktivn\u00edho d\u0159\u00edv\u00ed (v\u00fdvraty a zlomy z v\u011btrn\u00fdch kalamit atd.) a pou\u017e\u00edv\u00e1n\u00ed lapac\u00edch za\u0159\u00edzen\u00ed – lap\u00e1k\u016f a lapa\u010d\u016f. Lap\u00e1ky jsou pok\u00e1cen\u00e9 a odv\u011btven\u00e9 zdrav\u00e9 stromy p\u0159ikryt\u00e9 v\u011btvemi. Po n\u00e1letu brouk\u016f se kontroluje stadium v\u00fdvoje larev a ve vhodn\u00e9m okam\u017eiku se lap\u00e1ky asanuj\u00ed. Lapa\u010de jsou odchytov\u00e1 za\u0159\u00edzen\u00ed l\u00e1kaj\u00edc\u00ed k\u016frovce pomoc\u00ed feromonov\u00fdch odparn\u00edk\u016f. \u010casto je m\u016f\u017eeme spat\u0159it na okraj\u00edch pasek \u010di na sv\u011btlin\u00e1ch smrkov\u00fdch porost\u016f.<\/p>\n","protected":false},"excerpt":{"rendered":"

L\u00fdko\u017erout smrkov\u00fd –\u00a0(Ips typographus)\u00a0Je z\u0159ejm\u011b nej\u0161kodliv\u011bj\u0161\u00ed hmyz\u00ed \u0161k\u016fdce v na\u0161em lesn\u00edm hospod\u00e1\u0159stv\u00ed, nejnebezpe\u010dn\u011bj\u0161\u00ed je p\u0159edev\u0161\u00edm v\u00a0oblastech rozs\u00e1hl\u00fdch smrkov\u00fdch monokultur. Brouk je p\u0159ibli\u017en\u011b 4,5 a\u017e 5,5 milimetru dlouh\u00fd, leskl\u00fd, hn\u011bd\u00e9 nebo hn\u011bdo\u010dern\u00e9<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[14,8],"tags":[],"class_list":["post-5043","post","type-post","status-publish","format-standard","hentry","category-akce","category-clanky"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p4YkmD-1jl","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.benateckyctyrlistek.eu\/index.php?rest_route=\/wp\/v2\/posts\/5043","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.benateckyctyrlistek.eu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.benateckyctyrlistek.eu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.benateckyctyrlistek.eu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.benateckyctyrlistek.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5043"}],"version-history":[{"count":1,"href":"https:\/\/www.benateckyctyrlistek.eu\/index.php?rest_route=\/wp\/v2\/posts\/5043\/revisions"}],"predecessor-version":[{"id":5045,"href":"https:\/\/www.benateckyctyrlistek.eu\/index.php?rest_route=\/wp\/v2\/posts\/5043\/revisions\/5045"}],"wp:attachment":[{"href":"https:\/\/www.benateckyctyrlistek.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.benateckyctyrlistek.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.benateckyctyrlistek.eu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}