{"id":102,"date":"2022-05-31T11:30:27","date_gmt":"2022-05-31T11:30:27","guid":{"rendered":"https:\/\/sites.uef.fi\/rapukamu\/?page_id=102"},"modified":"2023-12-14T16:13:57","modified_gmt":"2023-12-14T16:13:57","slug":"pyrstojalkatauti","status":"publish","type":"page","link":"https:\/\/sites.uef.fi\/rapukamu\/pyrstojalkatauti\/","title":{"rendered":"Pyrst\u00f6jalkatauti"},"content":{"rendered":"\n<p>T\u00e4pl\u00e4rapuja vaivaavaa pyrst\u00f6jalkatautia<strong> <\/strong>on l\u00f6ydetty sek\u00e4 suomalaisista ett\u00e4 ruotsalaisista t\u00e4pl\u00e4rapukannoista (Edsman ja muut 2015). Tautil\u00f6yd\u00f6s on uusi ja havaintoja pyrst\u00f6jalkatautia sairastavista t\u00e4pl\u00e4ravuista on tehty vasta vuosikymmenen ajan. Tauti vaivaa Suomessa ainakin Saimaan, S\u00e4kyl\u00e4n Pyh\u00e4j\u00e4rven, Tampereen Pyh\u00e4j\u00e4rven, N\u00e4sij\u00e4rven, P\u00e4ij\u00e4nteen, Oksj\u00e4rven (H\u00e4me) ja er\u00e4\u00e4n savolaisen luvattomasti istutetun t\u00e4pl\u00e4rapukannan naaraita. Todenn\u00e4k\u00f6isesti pyrst\u00f6jalkatauti on t\u00e4t\u00e4kin yleisemp\u00e4\u00e4. Ruotsissa havaintoja on tehty erityisesti sellaisista t\u00e4pl\u00e4rapukannoista, jotka ovat syyst\u00e4 tai toisesta romahtaneet.<\/p>\n\n\n\n<p class=\"has-text-align-center\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1707\" class=\"wp-image-491\" style=\"width: 500px\" src=\"https:\/\/sites.uef.fi\/rapukamu\/wp-content\/uploads\/sites\/377\/2022\/08\/SAM_0018-scaled.jpg\" alt=\"\" srcset=\"https:\/\/sites.uef.fi\/rapukamu\/wp-content\/uploads\/sites\/377\/2022\/08\/SAM_0018-scaled.jpg 2560w, https:\/\/sites.uef.fi\/rapukamu\/wp-content\/uploads\/sites\/377\/2022\/08\/SAM_0018-300x200.jpg 300w, https:\/\/sites.uef.fi\/rapukamu\/wp-content\/uploads\/sites\/377\/2022\/08\/SAM_0018-1024x683.jpg 1024w, https:\/\/sites.uef.fi\/rapukamu\/wp-content\/uploads\/sites\/377\/2022\/08\/SAM_0018-768x512.jpg 768w, https:\/\/sites.uef.fi\/rapukamu\/wp-content\/uploads\/sites\/377\/2022\/08\/SAM_0018-1536x1024.jpg 1536w, https:\/\/sites.uef.fi\/rapukamu\/wp-content\/uploads\/sites\/377\/2022\/08\/SAM_0018-2048x1365.jpg 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/p>\n\n\n\n<p>Tauti vaivaa naarasrapuja ja taudin kuvaan kuuluu naaraan pyrst\u00f6jalkojen osittainen tai t\u00e4ydellinen <a rel=\"noreferrer noopener\" href=\"https:\/\/sites.uef.fi\/rapukamu\/wp-content\/uploads\/sites\/377\/2022\/08\/pyrstojalkatauti-kuvana.jpg\" target=\"_blank\">sy\u00f6pyminen<\/a>. Taudin alkuvaiheessa pyrst\u00f6jaloissa on ruskeita melanisaatiolaikkuja ja taudin edetess\u00e4 kokonaiset pyrst\u00f6jalat sy\u00f6pyv\u00e4t. Sy\u00f6pyneiden pyrst\u00f6jalkojen merkkin\u00e4 ovat tummat, melanisoineet ruvet pyrst\u00f6jaokkeiden suvuilla.<\/p>\n\n\n\n<p>Tauti rassaa t\u00e4pl\u00e4rapujen lis\u00e4\u00e4ntymist\u00e4, sill\u00e4 naaras kiinnitt\u00e4\u00e4 m\u00e4din pyrst\u00f6n alle, pyrst\u00f6jalkoihin, ja niiden puuttuminen haittaa tai est\u00e4\u00e4 m\u00e4din kiinnittymisen. Jo muutaman pyrst\u00f6jalan puuttuminen v\u00e4hent\u00e4\u00e4 merkitt\u00e4v\u00e4sti hautoutuvan m\u00e4din m\u00e4\u00e4r\u00e4\u00e4, v\u00e4hint\u00e4\u00e4n 25%, ja jos j\u00e4ljell\u00e4 on vain muutama pyrst\u00f6jalka, m\u00e4ti ei pysy ollenkaan pyrst\u00f6n alla.<\/p>\n\n\n\n<p>Pyrst\u00f6jalkatautiin sairastuvat t\u00e4pl\u00e4ravut ovat tutkimusten mukaan olleet aina rapuruton vaivaamia ja siten t\u00e4m\u00e4n taudin heikent\u00e4mi\u00e4. Pyrst\u00f6jalat sy\u00f6 Fusarium -perheen sieni, joka siis iskee t\u00e4pl\u00e4rapunaaraaseen tilanteen salliessa.&nbsp;<\/p>\n\n\n\n<p>Pyrst\u00f6jalkatauti on yksi todenn\u00e4k\u00f6inen syy t\u00e4pl\u00e4rapuakantojen heikentymiseen ja huonoon palautumiseen kannan romahduksen j\u00e4lkeen.<\/p>\n\n\n\n<p>Pyrst\u00f6jalkatautia esiintyy suomalaisissa t\u00e4pl\u00e4rapukannoissa noin 10% naaraista kesien 2014-5 koepyyntien perusteella. Pyrst\u00f6jalkataudin esiaste, melanisoituneet (tummanruskeita laikkuja) pyrst\u00f6jalat, on t\u00e4t\u00e4kin yleisempi ja jopa puolet t\u00e4pl\u00e4rapunaaraista on osoittanut esiasteen oireita Saimaan koeravustusaineistossa.<\/p>\n\n\n\n<p>Pyrst\u00f6jalkatauti <strong><u>ei<\/u> <\/strong>vaivaa jokirapuja eik\u00e4 vastaavanlaistakaan oireyhtym\u00e4\u00e4 ole tavattu jokiravulla.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u00e4pl\u00e4rapuja vaivaavaa pyrst\u00f6jalkatautia on l\u00f6ydetty sek\u00e4 suomalaisista ett\u00e4 ruotsalaisista t\u00e4pl\u00e4rapukannoista (Edsman ja muut 2015). Tautil\u00f6yd\u00f6s on uusi ja havaintoja pyrst\u00f6jalkatautia sairastavista t\u00e4pl\u00e4ravuista on tehty vasta vuosikymmenen ajan. Tauti vaivaa Suomessa ainakin Saimaan, S\u00e4kyl\u00e4n Pyh\u00e4j\u00e4rven, Tampereen Pyh\u00e4j\u00e4rven, N\u00e4sij\u00e4rven, P\u00e4ij\u00e4nteen, Oksj\u00e4rven (H\u00e4me) ja er\u00e4\u00e4n savolaisen luvattomasti istutetun t\u00e4pl\u00e4rapukannan naaraita. Todenn\u00e4k\u00f6isesti pyrst\u00f6jalkatauti on t\u00e4t\u00e4kin yleisemp\u00e4\u00e4. Ruotsissa havaintoja on [&hellip;]<\/p>\n","protected":false},"author":826,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-102","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pyrst\u00f6jalkatauti - Rapukamu<\/title>\n<meta name=\"description\" content=\"Pyrst\u00f6jalkatauti on erityisesti t\u00e4pl\u00e4rapuja vaivaa oireyhtym\u00e4, joka vaikeuttaa tai est\u00e4\u00e4 t\u00e4pl\u00e4rapujen lis\u00e4\u00e4ntymisen.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sites.uef.fi\/rapukamu\/pyrstojalkatauti\/\" \/>\n<meta property=\"og:locale\" content=\"fi_FI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pyrst\u00f6jalkatauti - 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