{"id":281404,"date":"2025-01-15T09:43:02","date_gmt":"2025-01-15T08:43:02","guid":{"rendered":"https:\/\/preprod.weenat.com\/?p=281404"},"modified":"2026-07-24T11:46:25","modified_gmt":"2026-07-24T09:46:25","slug":"how-cristal-union-developed-a-high-performance-decision-support-tool-cristal-cercoad-using-weenat-weather-data","status":"publish","type":"post","link":"https:\/\/preprod.weenat.com\/en\/how-cristal-union-developed-a-high-performance-decision-support-tool-cristal-cercoad-using-weenat-weather-data\/","title":{"rendered":"How Cristal Union developed a high-performance decision support tool: Cristal Cerc\u2019OAD\u00ae using Weenat weather data\u00a0"},"content":{"rendered":"\n<div class=\"et_pb_section_0 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_0 et_pb_row et_block_row preset--module--divi-row--default\"><div class=\"et_pb_column_0 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_0 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--a911bbfb-d5ea-4b1c-a805-a3c8d79268a7\"><div class=\"et_pb_text_inner\"><h2>1. Context<\/h2>\n<\/div><\/div><div class=\"et_pb_text_1 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p><strong>Cristal Union<\/strong> is a cooperative group and one of the leading producers of <strong>beet sugar and alcohol<\/strong> in Europe, bringing together more than <strong>9,000 farmer-cooperators<\/strong> across France.<\/p>\n<p>For several years, sugar beet crops have been increasingly affected by <strong>cercospora leaf spot<\/strong>, a fungal disease that can cause yield losses of <strong>25 to 30%<\/strong> for farmers.<\/span><\/p>\n<\/div><\/div><div class=\"et_pb_image_0 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/preprod.weenat.com\/wp-content\/uploads\/2025\/01\/cristal-union-Sainte-Emilie-2023-80-Franck-DUNOUAU.webp\" width=\"1500\" height=\"1000\" class=\"wp-image-280740\" alt=\"cristal-union-Sainte-Emilie-2023-80-Franck-DUNOUAU\" \/><\/span><\/div><div class=\"et_pb_text_2 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p>This disease thrives under specific weather conditions: warm temperatures<strong> (optimal between 19 and 26\u00b0C)<\/strong> and high humidity. As climate change intensifies, average <strong>temperatures rise,<\/strong> and periods of <strong>heavy rainfall<\/strong> become more frequent<\/p>\n<p>The result? Cristal Union is facing <strong>more frequent and intense cercospora outbreaks<\/strong> across all production areas.<\/p>\n<\/div><\/div><\/div><\/div><div class=\"et_pb_row_1 et_pb_row et_block_row preset--module--divi-row--default\"><div class=\"et_pb_column_1 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_3 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--a911bbfb-d5ea-4b1c-a805-a3c8d79268a7\"><div class=\"et_pb_text_inner\"><h2><strong>2. Challenge<\/strong><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\"><\/span><\/h2>\n<\/div><\/div><div class=\"et_pb_text_4 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p>To help its members combat the disease, Cristal Union\u2019s agronomy team launched its own cercospora development model in 2018, enabling farmers to act at the right time to control the risk of fungal spread: <strong>Cristal Cerc\u2019OAD\u00ae<\/strong>. <\/p>\n<p>To create a reliable and high-performance <strong>Decision Support Tool<\/strong>, the company relied on the results of <strong>7 years of experimentation and data<\/strong> from its network of connected weather stations.<\/p>\n<\/div><\/div><div class=\"et_pb_image_1 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/preprod.weenat.com\/wp-content\/uploads\/2025\/03\/Cristal-Union-USE-CASE-2-min.webp\" width=\"936\" height=\"632\" class=\"wp-image-281436\" alt=\"Cristal Union Cristal Cerc&#039;oad\" \/><\/span><\/div><div class=\"et_pb_text_5 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p><em>Graph legend: <\/em><\/p>\n<p>\ud83d\udfea\u00a0<em>Trigger threshold<\/em><\/p>\n<p>\ud83d\udfe9\u00a0<em>Daily Cumulative Infectious Risks<\/em><\/p>\n<\/div><\/div><div class=\"et_pb_text_6 et_pb_text et_pb_bg_layout_light et_pb_section_parallax et_pb_module et_block_module preset--module--divi-text--default\"><span class=\"et-pb-parallax-wrapper\"><span class=\"et-pb-parallax-background et-pb-parallax-background-module--divi-text-6\" style=\"background-image:url(https:\/\/preprod.weenat.com\/wp-content\/uploads\/2025\/01\/betterave-vasilina-sirotina-qwxV8mAo5gQ-unsplash.webp)\"><\/span><span class=\"et_parallax_gradient\" style=\"background-image:linear-gradient(171deg, #002635 20%,rgba(255,255,255,0) 100%)\"><\/span><\/span><div class=\"et_pb_text_inner\"><p>\"To feed our <strong>tool\u2019s algorithms<\/strong>, we needed very precise weather data: geolocated at the plot level, reliable over time, and ideally requiring little or no maintenance. The problem with<strong> weather stations<\/strong> \u2014 beyond the initial investment \u2014 is the need for <strong>regular upkeep<\/strong>. That adds extra work and significant maintenance costs.\"<\/p>\n<p><strong>Quentin Tilloy<br \/><\/strong><span data-contrast=\"auto\">Agronomic Manager at Cristal Union<\/span><span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\">\u00a0<\/span><\/p>\n<\/div><\/div><div class=\"et_pb_text_7 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--a911bbfb-d5ea-4b1c-a805-a3c8d79268a7\"><div class=\"et_pb_text_inner\"><h2>3. Solution<span data-ccp-props=\"{&quot;134233117&quot;:false,&quot;134233118&quot;:false,&quot;335559738&quot;:240,&quot;335559739&quot;:240}\"><\/span><\/h2>\n<\/div><\/div><div class=\"et_pb_text_8 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p>Cristal Union ultimately chose <a href=\"\/en\/weather-data\/meteo-vision-data\/\"><strong>Meteo Vision<\/strong><\/a>, Weenat\u2019s spatialized weather data solution and the European leader in agricultural weather data.<\/p>\n<p>The result? The cooperative successfully deployed the DST to its <strong>9,000 members<\/strong>, with very low installation costs and zero maintenance.<\/p>\n<\/div><\/div><div class=\"et_pb_text_9 et_pb_text et_pb_bg_layout_light et_pb_section_parallax et_pb_module et_block_module preset--module--divi-text--default\"><span class=\"et-pb-parallax-wrapper\"><span class=\"et-pb-parallax-background et-pb-parallax-background-module--divi-text-9\" style=\"background-image:url(https:\/\/preprod.weenat.com\/wp-content\/uploads\/2025\/01\/cristal-union-culture-betterave-tracteur.webp)\"><\/span><span class=\"et_parallax_gradient\" style=\"background-image:linear-gradient(171deg, #002635 20%,rgba(255,255,255,0) 100%)\"><\/span><\/span><div class=\"et_pb_text_inner\"><p>\"One of <strong>Meteo Vision<\/strong>\u2019s advantages is that our members can <strong>geolocate their plots directly<\/strong> within their online portal: <strong>Cristalcoop.fr<\/strong>, which consolidates all their account information. They can easily access hyper-local data <strong>with a 1 km\u00b2 resolution<\/strong>, allowing them to tailor the DST recommendations to <strong>real field conditions.<\/strong>\"<\/p>\n<p><strong>Quentin Tilloy<br \/><\/strong>Agronomic Manager at Cristal Union<\/p>\n<\/div><\/div><div class=\"et_pb_module et_pb_button_module_wrapper et_pb_button_0_wrapper preset--module--divi-button--default_wrapper\"><a class=\"et_pb_button_0 et_pb_button et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-button--default\" href=\"https:\/\/preprod.weenat.com\/en\/weather-data\/meteo-vision-data\/\">Discover Meteo Vision<\/a><\/div><div class=\"et_pb_text_10 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p>The tool has been a hit: today, 1 in 2 members has adopted Cristal Cerc\u2019OAD\u00ae in high-risk areas \u2014 covering more than <strong>80,000 hectares of crops.<\/strong><\/p>\n<p>Even better: Cristal Union observed an average yield increase of<strong> 7 tonnes at 16\u00b0 per hectare<\/strong> in trials using Cristal Cerc\u2019OAD\u00ae.<\/p>\n<\/div><\/div><div class=\"et_pb_image_2 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/preprod.weenat.com\/wp-content\/uploads\/2025\/03\/Cristal-Union-USE-CASE-min.webp\" width=\"936\" height=\"466\" class=\"wp-image-281434\" alt=\"Cristal Union Cristal Cerc&#039;oad\" \/><\/span><\/div><div class=\"et_pb_text_11 et_pb_text et_pb_bg_layout_light et_pb_section_parallax et_pb_module et_block_module preset--module--divi-text--default\"><span class=\"et-pb-parallax-wrapper\"><span class=\"et-pb-parallax-background et-pb-parallax-background-module--divi-text-11\" style=\"background-image:url(https:\/\/preprod.weenat.com\/wp-content\/uploads\/2025\/01\/betterave-hannah-w-mgBTFZoBFMY-unsplash.webp)\"><\/span><span class=\"et_parallax_gradient\" style=\"background-image:linear-gradient(171deg, #002635 20%,rgba(255,255,255,0) 100%)\"><\/span><\/span><div class=\"et_pb_text_inner\"><p>\"Beyond the yield gains, Cristal Cerc\u2019OAD\u00ae saves us both time and efficiency. According to the IPM method, determining when to treat <strong>requires sampling 100 leaves and counting how many show symptoms<\/strong>. It\u2019s time-consuming, and we often intervene too late when the disease is already established. \"<\/p>\n<p><strong>Quentin Tilloy<\/strong><br \/>Agronomic Manager at Cristal Union<\/p>\n<\/div><\/div><div class=\"et_pb_text_12 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p><span data-contrast=\"auto\">The DST is offered free of charge to all Cristal Union members, <strong>giving them personalized support to optimize fungicide treatments, save time, and maximize yields.<\/strong><\/span><strong>\u00a0<\/strong><\/p>\n<\/div><\/div><\/div><\/div><div class=\"et_pb_row_2 et_pb_row et_pb_row_3-4_1-4 et_block_row et_block_row_3-4_1-4 preset--module--divi-row--e49f4310-8203-4d88-8ba7-557b1f2000f5\"><div class=\"et_pb_column_2 et_pb_column et_pb_column_3_4 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_13 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p>Want to create value for your clients or members with weather data?<\/p>\n<\/div><\/div><div class=\"et_pb_text_14 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module preset--module--divi-text--default\"><div class=\"et_pb_text_inner\"><p>Want to create value for your clients or members with weather data?<\/p>\n<p>Contact the Weenat team to discuss your projects and discover how our solutions <strong>help over 360 cooperatives and distributors<\/strong> make the best decisions for their territories.<\/p>\n<\/div><\/div><div class=\"et_pb_code_0 et_pb_code et_pb_module\"><div class=\"et_pb_code_inner\"><div class=\"hs-cta-embed hs-cta-simple-placeholder hs-cta-embed-289139678396\"\n  style=\"max-width:100%; max-height:100%; width:240px;height:42.3984375px\" data-hubspot-wrapper-cta-id=\"289139678396\">\n  <a 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