{"id":5659,"date":"2009-03-07T14:05:08","date_gmt":"2009-03-07T12:05:08","guid":{"rendered":"http:\/\/staging.sillon38.com\/2009\/03\/07\/la-goutte-deau-qui-tue\/"},"modified":"2009-03-07T14:05:08","modified_gmt":"2009-03-07T12:05:08","slug":"la-goutte-deau-qui-tue","status":"publish","type":"post","link":"https:\/\/www.sillon38.com\/blog\/2009\/03\/07\/la-goutte-deau-qui-tue\/","title":{"rendered":"La goutte d\u2019eau qui tue"},"content":{"rendered":"

Le pr\u00e9sident du Syndicat apicole Dauphinois nous alerte \u00e0 propos d’un article paru sur www.univers-nature.com.<\/a> Cet article intitul\u00e9: \u00ab\u00a0Abeilles et pesticides: la goutte d’eau qui tue\u00a0\u00bb, traite des effets indirects des traitements insecticides des semences (type Cruiser).<\/p>\n

\n

Les gouttes d\u2019eau produites par les plants de ma\u00efs dont les graines ont \u00e9t\u00e9 trait\u00e9es aux insecticides peuvent tuer les abeilles en quelques minutes, d\u2019apr\u00e8s ce que d\u00e9montrent des recherches men\u00e9es \u00e0 l\u2019Universit\u00e9 de Padoue, en Italie.<\/h4>\n<\/blockquote>\n

Jusqu\u2019alors l\u2019impact des pesticides sur les abeilles n\u2019avait \u00e9t\u00e9 \u00e9valu\u00e9 que lors des semailles de ma\u00efs et par la contamination du pollen et du nectar. Suite \u00e0 diff\u00e9rentes \u00e9tudes, l\u2019Allemagne, contrairement \u00e0 la France, interdisait l\u2019utilisation de l\u2019insecticide Cruiser<\/a> apr\u00e8s une surmortalit\u00e9 des abeilles observ\u00e9e dans le Bad-W\u00fcrttemberg.<\/p>\n

En France, ce sont le \u00ab\u00a0Gaucho\u00a0\u00bb et le \u00ab\u00a0R\u00e9gent\u00a0\u00bb, des produits d\u2019enrobage des graines de la firme Bayer, qui furent interdits en 2004 pour leur toxicit\u00e9 sur les insectes butineurs. Bien que l\u2019Afssa dans son dernier rapport sur le sujet ne d\u00e9nonce pas explicitement le r\u00f4le des traitements phytosanitaires dans la disparition des abeilles<\/a>, il semble difficile aujourd\u2019hui de nier leurs effets d\u00e9l\u00e9t\u00e8res.<\/p>\n

Le pire \u00e9tant que ces effets sont peut \u00eatre plus larges que ce que l\u2019on pensait. Pour le professeur Vincenzo Girolami, \u00ab\u00a0les gouttes d\u2019eau issues du ph\u00e9nom\u00e8ne de \u00ab\u00a0guttation\u00a0\u00bb(1) de plantes provenant de graines de ma\u00efs trait\u00e9es, tuent les abeilles en l\u2019espace de quelques minutes si celles-ci utilisent leur ligule (la langue trompe des abeilles, NDLR)\u00a0\u00bb.<\/p>\n

Sa coll\u00e8gue chimiste, Andrea Tapparo, a montr\u00e9, en analysant les gouttes issues de la \u00ab\u00a0transpiration\u00a0\u00bb des feuilles, qu\u2019elles pouvaient contenir des n\u00e9onicotino\u00efdes (substances utilis\u00e9es dans le traitement des graines) \u00e0 des concentrations 10\u00a0000 fois sup\u00e9rieures \u00e0 la dose l\u00e9tale pour les abeilles.
\nLes gouttelettes qui reposent \u00e0 la surface des feuilles sont parmi les sources d\u2019eau pr\u00e9f\u00e9r\u00e9es des abeilles, elles risquent ainsi un empoissonnement direct, et pour les apiculteurs italiens, le probl\u00e8me ne se r\u00e9soudra pas par la simple am\u00e9lioration des semoirs ou des techniques de traitement.<\/p>\n

\n

Elisabeth Leciak<\/span><\/p>\n<\/h4>\n

1- En apparence, la guttation ressemble \u00e0 de la ros\u00e9e. C’est un ph\u00e9nom\u00e8ne proche de la transpiration que certaines plantes, comme le ma\u00efs, mettent en \u0153uvre pour \u00e9vacuer le surplus de pression racinaire qui peut appara\u00eetre au cours de la nuit, notamment dans les sols o\u00f9 le taux d’humidit\u00e9 du sol est important. Il se traduit par une forme de suintement d’eau aux niveaux des stomates (les pores des feuilles), qui se condense pour former des gouttelettes sur les feuilles.<\/h5>\n","protected":false},"excerpt":{"rendered":"

Le pr\u00e9sident du Syndicat apicole Dauphinois nous alerte \u00e0 propos d’un article paru sur www.univers-nature.com. Cet article intitul\u00e9: \u00ab\u00a0Abeilles et pesticides: la goutte d’eau qui tue\u00a0\u00bb, traite des effets indirects des traitements insecticides des semences (type Cruiser). Les gouttes d\u2019eau…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-5659","post","type-post","status-publish","format-standard","hentry","category-apiculture"],"yoast_head":"\nLa goutte d\u2019eau qui tue -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sillon38.com\/blog\/2009\/03\/07\/la-goutte-deau-qui-tue\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La goutte d\u2019eau qui tue -\" \/>\n<meta property=\"og:description\" content=\"Le pr\u00e9sident du Syndicat apicole Dauphinois nous alerte \u00e0 propos d’un article paru sur www.univers-nature.com. Cet article intitul\u00e9: \u00ab\u00a0Abeilles et pesticides: la goutte d’eau qui tue\u00a0\u00bb, traite des effets indirects des traitements insecticides des semences (type Cruiser). 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