{"id":3952,"date":"2025-07-21T14:01:09","date_gmt":"2025-07-21T11:01:09","guid":{"rendered":"https:\/\/www.kicro.eu\/?p=3952"},"modified":"2025-08-01T14:06:14","modified_gmt":"2025-08-01T11:06:14","slug":"plant-pathology-focus-grapevine-downy-mildew","status":"publish","type":"post","link":"https:\/\/www.kicro.eu\/index.php\/plant-pathology-focus-grapevine-downy-mildew\/","title":{"rendered":"Plant Pathology Focus | GRAPEVINE DOWNY MILDEW"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3952\" class=\"elementor elementor-3952\">\n\t\t\t\t<div class=\"elementor-element elementor-element-88e7031 e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"88e7031\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-946111a elementor-widget elementor-widget-heading\" data-id=\"946111a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Plant Pathology Focus | GRAPEVINE DOWNY MILDEW<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3a7fba7 elementor-widget elementor-widget-text-editor\" data-id=\"3a7fba7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>July brings heat\u2026 and humidity \u2014 the perfect storm for one of the most dangerous threats in the vineyard:<span class=\"html-span xexx8yu xyri2b x18d9i69 x1c1uobl x1hl2dhg x16tdsg8 x1vvkbs x3nfvp2 x1j61x8r x1fcty0u xdj266r xat24cr xm2jcoa x1mpyi22 xxymvpz xlup9mm x1kky2od\"><br><\/span>&nbsp;Downy mildew, caused by Plasmopara viticola.<br class=\"html-br\"><br class=\"html-br\"><span class=\"html-span xexx8yu xyri2b x18d9i69 x1c1uobl x1hl2dhg x16tdsg8 x1vvkbs x3nfvp2 x1j61x8r x1fcty0u xdj266r xat24cr xm2jcoa x1mpyi22 xxymvpz xlup9mm x1kky2od\"><img decoding=\"async\" class=\"xz74otr x15mokao x1ga7v0g x16uus16 xbiv7yw\" src=\"https:\/\/static.xx.fbcdn.net\/images\/emoji.php\/v9\/tc1\/1\/16\/1f50d.png\" alt=\"\ud83d\udd0d\" width=\"16\" height=\"16\"><\/span>&nbsp;Symptoms<br class=\"html-br\">\u2022 Leaves: translucent oil spots on the upper surface and white mold on the underside.<br class=\"html-br\">\u2022 Young shoots: can darken and collapse.<br class=\"html-br\">\u2022 Grape clusters: may shrivel, dry out, or rot \u2192 direct yield and quality loss.<br class=\"html-br\"><br class=\"html-br\"><span class=\"html-span xexx8yu xyri2b x18d9i69 x1c1uobl x1hl2dhg x16tdsg8 x1vvkbs x3nfvp2 x1j61x8r x1fcty0u xdj266r xat24cr xm2jcoa x1mpyi22 xxymvpz xlup9mm x1kky2od\"><img decoding=\"async\" class=\"xz74otr x15mokao x1ga7v0g x16uus16 xbiv7yw\" src=\"https:\/\/static.xx.fbcdn.net\/images\/emoji.php\/v9\/t4f\/1\/16\/1f326.png\" alt=\"\ud83c\udf26\ufe0f\" width=\"16\" height=\"16\"><\/span>&nbsp;When does it strike?<br class=\"html-br\">The \u201cRule of the 3 Tens\u201d can help predict when downy mildew is likely to appear. It considers the following conditions:<span class=\"html-span xexx8yu xyri2b x18d9i69 x1c1uobl x1hl2dhg x16tdsg8 x1vvkbs x3nfvp2 x1j61x8r x1fcty0u xdj266r xat24cr xm2jcoa x1mpyi22 xxymvpz xlup9mm x1kky2od\"><br><\/span>At least 10 mm of rain<span class=\"html-span xexx8yu xyri2b x18d9i69 x1c1uobl x1hl2dhg x16tdsg8 x1vvkbs x3nfvp2 x1j61x8r x1fcty0u xdj266r xat24cr xm2jcoa x1mpyi22 xxymvpz xlup9mm x1kky2od\"><br><\/span>Temperature above 10 \u00b0C<span class=\"html-span xexx8yu xyri2b x18d9i69 x1c1uobl x1hl2dhg x16tdsg8 x1vvkbs x3nfvp2 x1j61x8r x1fcty0u xdj266r xat24cr xm2jcoa x1mpyi22 xxymvpz xlup9mm x1kky2od\"><br><\/span>Shoots longer than 10 cm<span class=\"html-span xexx8yu xyri2b x18d9i69 x1c1uobl x1hl2dhg x16tdsg8 x1vvkbs x3nfvp2 x1j61x8r x1fcty0u xdj266r xat24cr xm2jcoa x1mpyi22 xxymvpz xlup9mm x1kky2od\"><br><\/span>When all three happen simultaneously, primary infections can occur.<br class=\"html-br\">If wet conditions continue, secondary infections can follow throughout the season.<br class=\"html-br\"><br class=\"html-br\"><span class=\"html-span xexx8yu xyri2b x18d9i69 x1c1uobl x1hl2dhg x16tdsg8 x1vvkbs x3nfvp2 x1j61x8r x1fcty0u xdj266r xat24cr xm2jcoa x1mpyi22 xxymvpz xlup9mm x1kky2od\"><img decoding=\"async\" class=\"xz74otr x15mokao x1ga7v0g x16uus16 xbiv7yw\" src=\"https:\/\/static.xx.fbcdn.net\/images\/emoji.php\/v9\/t3a\/1\/16\/1f6e1.png\" alt=\"\ud83d\udee1\ufe0f\" width=\"16\" height=\"16\"><\/span>&nbsp;How to manage it<br class=\"html-br\">&nbsp;Preventive treatments (copper or systemic, depending on growth stage)<span class=\"html-span xexx8yu xyri2b x18d9i69 x1c1uobl x1hl2dhg x16tdsg8 x1vvkbs x3nfvp2 x1j61x8r x1fcty0u xdj266r xat24cr xm2jcoa x1mpyi22 xxymvpz xlup9mm x1kky2od\"><br><\/span>&nbsp;Canopy management to improve airflow<span class=\"html-span xexx8yu xyri2b x18d9i69 x1c1uobl x1hl2dhg x16tdsg8 x1vvkbs x3nfvp2 x1j61x8r x1fcty0u xdj266r xat24cr xm2jcoa x1mpyi22 xxymvpz xlup9mm x1kky2od\"><br><\/span>&nbsp;Use of forecasting models (DSS) to optimize timing<span class=\"html-span xexx8yu xyri2b x18d9i69 x1c1uobl x1hl2dhg x16tdsg8 x1vvkbs x3nfvp2 x1j61x8r x1fcty0u xdj266r xat24cr xm2jcoa x1mpyi22 xxymvpz xlup9mm x1kky2od\"><br><\/span>&nbsp;Frequent field scouting after rainfall<br class=\"html-br\"><br class=\"html-br\"><span class=\"html-span xexx8yu xyri2b x18d9i69 x1c1uobl x1hl2dhg x16tdsg8 x1vvkbs x3nfvp2 x1j61x8r x1fcty0u xdj266r xat24cr xm2jcoa x1mpyi22 xxymvpz xlup9mm x1kky2od\"><img loading=\"lazy\" decoding=\"async\" class=\"xz74otr x15mokao x1ga7v0g x16uus16 xbiv7yw\" src=\"https:\/\/static.xx.fbcdn.net\/images\/emoji.php\/v9\/ta0\/1\/16\/1f4d8.png\" alt=\"\ud83d\udcd8\" width=\"16\" height=\"16\"><\/span>&nbsp;Want to know more?<br class=\"html-br\">Thanks to the manual developed in the KICRO project, growers can learn not only about downy mildew, but also about many other grapevine diseases and how to prevent them.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Plant Pathology Focus | GRAPEVINE DOWNY MILDEW July brings heat\u2026 and humidity \u2014 the perfect storm for one of the most dangerous threats in the vineyard:&nbsp;Downy mildew, caused by Plasmopara viticola. &nbsp;Symptoms\u2022 Leaves: translucent oil spots on the upper surface and white mold on the underside.\u2022 Young shoots: can darken and collapse.\u2022 Grape clusters: may shrivel, dry out, or rot \u2192 direct yield and quality loss. &nbsp;When does it strike?The \u201cRule of the 3 Tens\u201d can help predict when downy mildew is likely to appear. It considers the following conditions:At least 10 mm of rainTemperature above 10 \u00b0CShoots longer than 10 cmWhen all three happen simultaneously, primary infections can occur.If wet conditions continue, secondary infections can follow throughout the season. &nbsp;How to manage it&nbsp;Preventive treatments (copper or systemic, depending on growth stage)&nbsp;Canopy management to improve airflow&nbsp;Use of forecasting models (DSS) to optimize timing&nbsp;Frequent field scouting after rainfall &nbsp;Want to know more?Thanks to the manual developed in the KICRO project, growers can learn not only about downy mildew, but also about many other grapevine diseases and how to prevent them.<\/p>\n","protected":false},"author":2,"featured_media":3951,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[144],"tags":[],"class_list":["post-3952","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Plant Pathology Focus | GRAPEVINE DOWNY MILDEW July brings heat\u2026 and humidity \u2014 the perfect storm for one of the most dangerous threats in the vineyard: Downy mildew, caused by Plasmopara viticola. 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