{"id":3502,"date":"2024-04-03T13:23:13","date_gmt":"2024-04-03T13:23:13","guid":{"rendered":"https:\/\/www.rebbaumuseum.ch\/?p=3502"},"modified":"2024-04-24T13:34:10","modified_gmt":"2024-04-24T13:34:10","slug":"le-phylloxera-et-la-station-dessai-de-vignes-americaines-a-douanne","status":"publish","type":"post","link":"https:\/\/www.rebbaumuseum.ch\/fr\/le-phylloxera-et-la-station-dessai-de-vignes-americaines-a-douanne\/","title":{"rendered":"Le phyllox\u00e9ra et la station d&rsquo;essai de vignes am\u00e9ricaines \u00e0 Douanne"},"content":{"rendered":"\n<section  class=\"text_bild  pt_0 pb_0 \">\n    <div class=\"container\">\n        <div class=\"row\">\n            <div class=\"col-12 col-md-4 order-md-2\">\n\n                <div class=\"swiper-container\">\n\n                    <div class=\"swiper-wrapper d-md-flex flex-md-wrap\">\n\n                                                                        <div class=\"swiper-slide\">\n                            <a 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data-src=\"https:\/\/www.rebbaumuseum.ch\/wp-content\/uploads\/2024\/03\/Setzen-scaled.jpg\"\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t                                data-srcset=\"https:\/\/www.rebbaumuseum.ch\/wp-content\/uploads\/2024\/03\/Setzen-scaled.jpg 2560w, https:\/\/www.rebbaumuseum.ch\/wp-content\/uploads\/2024\/03\/Setzen-300x225.jpg 300w, https:\/\/www.rebbaumuseum.ch\/wp-content\/uploads\/2024\/03\/Setzen-1024x767.jpg 1024w, https:\/\/www.rebbaumuseum.ch\/wp-content\/uploads\/2024\/03\/Setzen-768x575.jpg 768w, https:\/\/www.rebbaumuseum.ch\/wp-content\/uploads\/2024\/03\/Setzen-1536x1151.jpg 1536w, https:\/\/www.rebbaumuseum.ch\/wp-content\/uploads\/2024\/03\/Setzen-2048x1534.jpg 2048w\"\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t                                class=\"img-responsive bg_static_cover lazyload blur-up\" alt=\"\">                                <div\n                                    class=\"photo_swipe_icon position-absolute d-flex justify-content-center align-items-center\">\n                                    <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 38.5 38.5\">\n                                        <path\n                                            d=\"M17.9,22.6l-2-2L2.8,33.8V26.1H0V38.5H12.4V35.8H4.7ZM26.1,0V2.8h7.7L20.6,15.9l2,2L35.8,4.7v7.7h2.7V0Z\"\n                                            fill=\"#fff\" \/>\n                                    <\/svg>\n                                <\/div>\n                            <\/a>\n                        <\/div>\n                        \n                    <\/div>\n\n                    <div class=\"swiper-button-next d-flex justify-content-center align-items-center d-md-none\">\n                        <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 9.2 30.9\" height=\"42\" widht=\"12.5\">\n                            <polygon points=\"1.8 30.9 0 30 6.9 15 0 0.9 1.8 0 9.2 15 1.8 30.9\" fill=\"#fff\" \/>\n                        <\/svg>\n                    <\/div>\n                    <div class=\"swiper-button-prev d-flex justify-content-center align-items-center d-md-none\">\n                        <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 9.2 30.9\" height=\"42\" widht=\"12.5\">\n                            <polygon points=\"7.4 30.9 0 15.9 7.3 0 9.2 0.8 2.2 15.8 9.1 30 7.4 30.9\" fill=\"#fff\" \/>\n                        <\/svg>\n                    <\/div>\n                <\/div>\n\n            <\/div>\n\n            <div class=\"col-12 col-md-8 order-md-1 text-center text-md-left\">\n                <p><em>Depuis sa premi\u00e8re apparition dans l&rsquo;ouest de la France dans les ann\u00e9es 1860, le phyllox\u00e9ra, import\u00e9 des \u00c9tats-Unis, s&rsquo;est r\u00e9pandu en Europe. Sur son chemin vers l&rsquo;est, il est apparu pour la premi\u00e8re fois en Suisse en 1873, dans la commune genevoise de Pregny. Puis, en 1905, il a atteint le lac de Bienne au Landeron. En 1913, le phyllox\u00e9ra a \u00e9t\u00e9 d\u00e9couvert dans les Friesen (Chavannes), en 1917 en dessous du Festi (Gl\u00e9resse) et en 1920 dans l&rsquo;Untere Roggete \u00e0 T\u00fcscherz.<\/em><\/p>\n<p>Le phyllox\u00e9ra de la vigne (Phylloxera vastatrix) a un cycle de vie compliqu\u00e9 avec diff\u00e9rents stades de puceron, mouche, nymphe, larve, \u0153uf et puceron des racines. Le puceron vivant en surface ne menace la vie de la vigne qu&rsquo;en cas de tr\u00e8s forte infestation, mais le puceron des racines, qui suce les racines de la plante, est plus grave. Le cep de vigne meurt alors.<\/p>\n<p>L&rsquo;o\u00efdium et le mildiou (Peronospora; Plasmopara viticola) avaient \u00e9galement \u00e9t\u00e9 import\u00e9s des \u00c9tats-Unis en Europe quelques ann\u00e9es seulement avant le phyllox\u00e9ra. Les maladies et les parasites ainsi que les ann\u00e9es humides et froides ont menac\u00e9 la viticulture europ\u00e9enne de fond en comble. Le danger et la progression in\u00e9luctable du ravageur ont contraint les viticulteurs menac\u00e9s dans leur existence \u00e0 agir rapidement. La Conf\u00e9d\u00e9ration, les cantons et les communes s&rsquo;activ\u00e8rent. En 1907, la loi cantonale sur le phyllox\u00e9ra a \u00e9t\u00e9 adopt\u00e9e en votation populaire et un fonds cantonal pour la viticulture a pu \u00eatre cr\u00e9\u00e9. Ce fonds a permis de verser des contributions de renouvellement et des indemnit\u00e9s de perte aux viticulteurs.<\/p>\n<p><em>\u00ab\u00a0Si un cep de vigne est malade au point que ses feuilles changent de couleur, se dess\u00e8chent, que les pousses de l&rsquo;ann\u00e9e meurent aux extr\u00e9mit\u00e9s. Si, par exemple, l&rsquo;examen des racines, qui doit \u00eatre effectu\u00e9 imm\u00e9diatement, permet d&rsquo;observer des \u00e9paississements en forme de n\u0153uds et, sur ceux-ci, de minuscules pucerons jaun\u00e2tres, \u00e0 peine de la taille d\u2019une graine de pavot, nous avons devant nous le pire ennemi de notre culture la plus noble, le phyllox\u00e9ra\u00a0\u00bb.<\/em><\/p>\n<p>C&rsquo;est ce qu&rsquo;\u00e9crit Heinrich Freiherr von Schilling en 1899 \u00e0 propos du phyllox\u00e9ra. Des essais ont donc \u00e9t\u00e9 entrepris tr\u00e8s t\u00f4t pour ma\u00eetriser le phyllox\u00e9ra : Les parcelles de vigne infest\u00e9es ont \u00e9t\u00e9 isol\u00e9es autant que possible et le phyllox\u00e9ra a \u00e9t\u00e9 combattu chimiquement : du sulfure de carbone a \u00e9t\u00e9 inject\u00e9 dans les sols de vigne infest\u00e9s \u00e0 l&rsquo;aide de grosses seringues (pals injecteurs). Un travail intensif, dangereux (risque d\u2019incendie) et co\u00fbteux.<\/p>\n<p>Une m\u00e9thode biotechnique de lutte contre le pou \u00e9tait et reste le greffage des ceps de vigne. Apr\u00e8s avoir d\u00e9couvert que les vignes am\u00e9ricaines survivaient \u00e0 l&rsquo;attaque du phyllox\u00e9ra sur leurs racines, le greffage a pris une grande importance \u00e0 la fin du 19<sup>e<\/sup> si\u00e8cle. Des porte-greffes am\u00e9ricains ont \u00e9t\u00e9 import\u00e9s \u00e0 grande \u00e9chelle, sur lesquels ont \u00e9t\u00e9 greff\u00e9s les c\u00e9pages nobles europ\u00e9ens souhait\u00e9s.<\/p>\n<p>Au lac de Bienne aussi, on craignait l&rsquo;in\u00e9vitable invasion du phyllox\u00e9ra. C&rsquo;est pourquoi la soci\u00e9t\u00e9 viticole a adopt\u00e9, lors de son assembl\u00e9e g\u00e9n\u00e9rale de 1901, un r\u00e8glement pour une station d\u2019essai de vignes am\u00e9ricaines \u00e0 Douanne. Cette station devait \u00eatre approuv\u00e9e par le canton et faire l&rsquo;objet d&rsquo;une concession. En 1902, des porte-greffes am\u00e9ricains furent import\u00e9s pour la premi\u00e8re fois de France et d\u00e9sinfect\u00e9s, si bien qu&rsquo;en 1903, plus de 10&rsquo;000 pieds de vigne greff\u00e9s d&rsquo;un an pouvaient d\u00e9j\u00e0 \u00eatre livr\u00e9s de Douanne &#8211; et ce, avant m\u00eame que le phyllox\u00e9ra n&rsquo;arrive dans notre r\u00e9gion. En 1906, la soci\u00e9t\u00e9 viticole d\u00e9cida de construire un local de greffage et d&rsquo;agrandir les champs d\u2019essai dans le marais de Douanne. Fin juin 1907, l\u2019atelier de greffage \u00e9tait pr\u00eat \u00e0 \u00eatre emm\u00e9nag\u00e9.<\/p>\n<p>Une production intensive de plants de vigne greff\u00e9s commen\u00e7a alors. Les vignerons de La Neuveville construisirent eux aussi un local de greffage afin de r\u00e9pondre \u00e0 la forte demande de ceps greff\u00e9s. Les vignerons travaillaient au salaire horaire dans l\u2019atelier de greffage, en hiver pour tailler le bois de vigne et greffer les ceps, au printemps et en \u00e9t\u00e9 pour planter et soigner les vignes sur les parcelles exp\u00e9rimentales dans le marais pr\u00e8s de la gare de Douanne.<\/p>\n<p>Durant son mandat, le premier directeur de la station d&rsquo;essai a tenu une comptabilit\u00e9 m\u00e9ticuleuse du nombre de plants qui devaient \u00eatre remis, plant\u00e9s et \u00e9ventuellement remplac\u00e9s. De 1903 \u00e0 1929, plus de 1,2 million de plants ont \u00e9t\u00e9 fabriqu\u00e9s et remis aux propri\u00e9taires de vignes de La Neuveville, Gl\u00e9resse, Douanne et T\u00fcscherz-Alferm\u00e9e. Ins, Erlach, Bienne, Gampelen, Br\u00fcttelen, L\u00fcscherz, Pieterlen, B\u00fchl, G\u00e4serz et Spiez ont \u00e9galement \u00e9t\u00e9 approvisionn\u00e9s en ceps de vigne greff\u00e9s. Jusqu&rsquo;en 1929, plus de 4100 parcelles ont pu \u00eatre plant\u00e9es (reconstitu\u00e9es) avec de nouveaux ceps de vigne.<\/p>\n<p>Les porte-greffes am\u00e9ricains utilis\u00e9s ont \u00e9galement \u00e9t\u00e9 soigneusement not\u00e9s. Certains des porte-greffes test\u00e9s \u00e0 l&rsquo;\u00e9poque sont encore utilis\u00e9s aujourd&rsquo;hui, comme le Vitis Riparia x Vitis Berlandieri ou le Vitis Riparia x Vitis Rupestris (RR3309).<\/p>\n<p>Le greffage est aujourd&rsquo;hui assur\u00e9 par des p\u00e9pini\u00e8res viticoles sp\u00e9cialis\u00e9es, car dans le monde entier, les nouvelles plantations utilisent exclusivement des vignes greff\u00e9es.<\/p>\n<h5 style=\"text-align: center;\"><a href=\"https:\/\/www.rebbaumuseum.ch\/wp-content\/uploads\/2024\/03\/Hof-Ausstellung-2024.pdf\">Affiche exposition 2024<\/a><\/h5>\n            <\/div>\n\n        <\/div>\n    <\/div>\n\n<\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":4,"featured_media":3469,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[10],"tags":[],"class_list":["post-3502","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - 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