{"id":83909,"date":"2024-05-12T02:53:52","date_gmt":"2024-05-12T02:53:52","guid":{"rendered":"https:\/\/worldofplants.ai\/?p=83909"},"modified":"2024-07-24T13:37:09","modified_gmt":"2024-07-24T13:37:09","slug":"downy-fungal-blight","status":"publish","type":"post","link":"https:\/\/worldofplants.ai\/en\/downy-fungal-blight\/","title":{"rendered":"Downy fungal blight on roses: symptoms, damage, prevention"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter-rtl ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of contents of the article<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/worldofplants.ai\/en\/downy-fungal-blight\/#%D8%A3%D8%B9%D8%B1%D8%A7%D8%B6_%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\" >Symptoms of downy mildew on roses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/worldofplants.ai\/en\/downy-fungal-blight\/#%D8%A3%D8%B3%D8%A8%D8%A7%D8%A8_%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\" >Causes of downy mildew on roses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/worldofplants.ai\/en\/downy-fungal-blight\/#%D8%B8%D8%B1%D9%88%D9%81_%D8%A7%D9%86%D8%AA%D8%B4%D8%A7%D8%B1_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\" >Conditions of the spread of downy mildew on roses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/worldofplants.ai\/en\/downy-fungal-blight\/#%D8%AF%D9%88%D8%B1%D8%A9_%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\" >The course of downy mildew on roses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/worldofplants.ai\/en\/downy-fungal-blight\/#%D8%A7%D9%84%D8%AE%D8%B3%D8%A7%D8%A6%D8%B1_%D8%A7%D9%84%D8%AA%D9%8A_%D9%8A%D8%B3%D8%A8%D8%A8%D9%87%D8%A7_%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\" >Losses caused by downy mildew on roses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/worldofplants.ai\/en\/downy-fungal-blight\/#%D8%A7%D8%B3%D8%AA%D8%B1%D8%A7%D8%AA%D9%8A%D8%AC%D9%8A%D8%A9_%D9%85%D9%83%D8%A7%D9%81%D8%AD%D8%A9_%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\" >Strategy for combating downy mildew on roses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/worldofplants.ai\/en\/downy-fungal-blight\/#%D8%A7%D9%84%D8%AA%D8%AF%D8%A7%D8%A8%D9%8A%D8%B1_%D8%A7%D9%84%D9%88%D9%82%D8%A7%D8%A6%D9%8A%D8%A9_%D9%84%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\" >Preventive measures for downy mildew on roses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/worldofplants.ai\/en\/downy-fungal-blight\/#%D8%A7%D9%84%D9%85%D9%83%D8%A7%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D8%B9%D8%B6%D9%88%D9%8A%D8%A9%D8%A7%D9%84%D9%83%D9%8A%D9%85%D9%8A%D8%A7%D8%A6%D9%8A%D8%A9_%D9%84%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\" >Organic \/ chemical control of downy mildew on roses<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>Downy mildew on roses is a fungal disease that affects rose plants, causing damage to leaves and flowers and reducing their quality. And in this article on your site botanist WORLD of PLANTS, we will discuss the causes of this disease, its symptoms, methods of prevention and treatment to preserve the health and beauty of the Rose.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%A3%D8%B9%D8%B1%D8%A7%D8%B6_%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\"><\/span>Symptoms of downy mildew on roses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>English name:<\/strong> Powdery Mildew <br><strong>Scientific name:<\/strong> Podosphaera pannosa, Sphaerotheca pannosa<br><strong>Type of disease:<\/strong> Fungal disease<br><strong>The family:<\/strong> Erysiphaceae<\/p>\n\n\n\n<p>Downy fungal blight appears on the Rose in the form of white or grayish-white downy growths on the leaves, stems and shoots. Infected leaves may deform, curl, and eventually turn yellow or brown; severe infections can lead to stunted growth, reduced flower quality, and premature leaf fall. And also fungal growth can cover the rose flowers, making them look deformed or fail to open properly.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"607\" height=\"455\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-white-and-pink-rose-description-a.jpeg\" alt=\"A close-up of a white and pink rose Description automatically generated\" class=\"wp-image-83643\" title=\"Diseases of the gory rose - botanist\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-white-and-pink-rose-description-a.jpeg 607w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-white-and-pink-rose-description-a-300x225.jpeg 300w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-white-and-pink-rose-description-a-16x12.jpeg 16w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-white-and-pink-rose-description-a-64x48.jpeg 64w\" sizes=\"auto, (max-width: 607px) 100vw, 607px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"607\" height=\"455\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-plant-stem-description-automatica.jpeg\" alt=\"A close-up of a plant stem Description automatically generated\" class=\"wp-image-83644\" title=\"Diseases of the gory rose - botanist\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-plant-stem-description-automatica.jpeg 607w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-plant-stem-description-automatica-300x225.jpeg 300w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-plant-stem-description-automatica-16x12.jpeg 16w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-plant-stem-description-automatica-64x48.jpeg 64w\" sizes=\"auto, (max-width: 607px) 100vw, 607px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"614\" height=\"465\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-leaf-description-automatically-ge-3.jpeg\" alt=\"A close-up of a leaf Description automatically generated\" class=\"wp-image-83645\" title=\"Diseases of the gory rose - botanist\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-leaf-description-automatically-ge-3.jpeg 614w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-leaf-description-automatically-ge-3-300x227.jpeg 300w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-leaf-description-automatically-ge-3-16x12.jpeg 16w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-leaf-description-automatically-ge-3-64x48.jpeg 64w\" sizes=\"auto, (max-width: 614px) 100vw, 614px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"614\" height=\"410\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-rose-bush-description-automatical.jpeg\" alt=\"A close-up of a rose bush Description automatically generated\" class=\"wp-image-83646\" title=\"Diseases of the gory rose - botanist\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-rose-bush-description-automatical.jpeg 614w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-rose-bush-description-automatical-300x200.jpeg 300w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-rose-bush-description-automatical-18x12.jpeg 18w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-rose-bush-description-automatical-64x43.jpeg 64w\" sizes=\"auto, (max-width: 614px) 100vw, 614px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"614\" height=\"410\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-rose-bud-description-automaticall.jpeg\" alt=\"A close-up of a rose bud Description automatically generated\" class=\"wp-image-83647\" title=\"Diseases of the gory rose - botanist\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-rose-bud-description-automaticall.jpeg 614w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-rose-bud-description-automaticall-300x200.jpeg 300w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-rose-bud-description-automaticall-18x12.jpeg 18w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/05\/a-close-up-of-a-rose-bud-description-automaticall-64x43.jpeg 64w\" sizes=\"auto, (max-width: 614px) 100vw, 614px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%A3%D8%B3%D8%A8%D8%A7%D8%A8_%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\"><\/span>Causes of downy mildew on roses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Downy fungal blight on the Rose is caused by the fungi Podosphaera pannosa and Sphaerotheca pannosa.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%B8%D8%B1%D9%88%D9%81_%D8%A7%D9%86%D8%AA%D8%B4%D8%A7%D8%B1_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\"><\/span>Conditions of the spread of downy mildew on roses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Downy blight grows in warm and humid conditions with temperatures between 20 degrees Celsius and 27 degrees Celsius (68 degrees Fahrenheit and 80 degrees Fahrenheit) and high relative humidity. The fungus can be spread by wind, water spray or by physical contact with infected plant material.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%AF%D9%88%D8%B1%D8%A9_%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\"><\/span>The course of downy mildew on roses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Downy blight fungi can pupate in the form of sleeping spinning or closed cuticles (fruiting structures) on Rose trunks, buds and plant residues<\/li>\n\n\n\n<li>In the spring, these structures release spores that can start new injuries on young delicate tissues.<\/li>\n\n\n\n<li>After that, the fungus produces additional spores (achondroplastic spores) that can spread the disease throughout the growing season.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%A7%D9%84%D8%AE%D8%B3%D8%A7%D8%A6%D8%B1_%D8%A7%D9%84%D8%AA%D9%8A_%D9%8A%D8%B3%D8%A8%D8%A8%D9%87%D8%A7_%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\"><\/span>Losses caused by downy mildew on roses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Severe downy blight infections can significantly reduce the aesthetic value and marketability of a rose, as well as weaken plants and make them more susceptible to other diseases and environmental stresses.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%A7%D8%B3%D8%AA%D8%B1%D8%A7%D8%AA%D9%8A%D8%AC%D9%8A%D8%A9_%D9%85%D9%83%D8%A7%D9%81%D8%AD%D8%A9_%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\"><\/span>Strategy for combating downy mildew on roses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>An integrated approach is recommended that includes agricultural practices, resistant varieties, and the application of fungicides to combat downy blight.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%A7%D9%84%D8%AA%D8%AF%D8%A7%D8%A8%D9%8A%D8%B1_%D8%A7%D9%84%D9%88%D9%82%D8%A7%D8%A6%D9%8A%D8%A9_%D9%84%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\"><\/span>Preventive measures for downy mildew on roses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cultivation of resistant or tolerant rose varieties.<\/li>\n\n\n\n<li>Ensure good air flow.<\/li>\n\n\n\n<li>Avoid congestion.<\/li>\n\n\n\n<li>Removal and destruction of the remains of infected plants.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%A7%D9%84%D9%85%D9%83%D8%A7%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D8%B9%D8%B6%D9%88%D9%8A%D8%A9%D8%A7%D9%84%D9%83%D9%8A%D9%85%D9%8A%D8%A7%D8%A6%D9%8A%D8%A9_%D9%84%D9%85%D8%B1%D8%B6_%D8%A7%D9%84%D9%84%D9%81%D8%AD%D8%A9_%D8%A7%D9%84%D9%81%D8%B7%D8%B1%D9%8A%D8%A9_%D8%A7%D9%84%D8%B2%D8%BA%D8%A8%D9%8A%D8%A9_%D8%B9%D9%84%D9%8A_%D8%A7%D9%84%D9%88%D8%B1%D8%AF\"><\/span>Organic \/ chemical control of downy mildew on roses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>For organic control, apply baking soda, neem oil, or sulfur-based fungicides. Chemical fungicides containing active substances such as myclobutanil, triforine or tebuconazole can also be used according to the label instructions, alternating different classes of fungicides to prevent the development of resistance.<\/p>\n\n\n\n<p>In conclusion, we would like to note that we, at the world of plants website, offer you all the necessary services in the world of plants, we provide all farmers and those interested in plants with three main services::-<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/worldofplants.ai\/en\/consulting\/?utm_source=blog&amp;utm_medium=article bottom&amp;utm_id=blog\" data-type=\"link\" data-id=\"https:\/\/worldofplants.ai\/consulting?utm_source=blog&amp;utm_medium=article+bottom&amp;utm_id=blog\">Artificial intelligence consulting service to help you identify diseases that affect plants and how to deal with them<\/a><\/strong>.<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/worldofplants.ai\/en\/blog\/?utm_source=blog&amp;utm_medium=article bottom&amp;utm_id=blog\" data-type=\"link\" data-id=\"https:\/\/worldofplants.ai\/blog?utm_source=blog&amp;utm_medium=article+bottom&amp;utm_id=blog\">Blog about plants, plant diseases and care of various crops<\/a><\/strong> ... You are currently browsing one of her articles right now.<\/li>\n\n\n\n<li>An application that provides agricultural consultations to clients, as well as a service for imaging diseases and knowing their treatment for free \u2013 <strong><a href=\"https:\/\/play.google.com\/store\/apps\/details?id=com.slyd4r.worldofplants\" data-type=\"link\" data-id=\"https:\/\/play.google.com\/store\/apps\/details?id=com.slyd4r.worldofplants\" target=\"_blank\" rel=\"noopener\">Click to download the Android version from Google Play Store<\/a><\/strong>\u060c <a href=\"https:\/\/apps.apple.com\/us\/app\/%D8%B9%D8%A7%D9%84%D9%85-%D8%A7%D9%84%D9%86%D8%A8%D8%A7%D8%AA%D8%A7%D8%AA\/id6479358008\" data-type=\"link\" data-id=\"https:\/\/apps.apple.com\/us\/app\/%D8%B9%D8%A7%D9%84%D9%85-%D8%A7%D9%84%D9%86%D8%A8%D8%A7%D8%AA%D8%A7%D8%AA\/id6479358008\" target=\"_blank\" rel=\"noopener\"><strong>Click to download the IOS version from the Apple App Store<\/strong><\/a>.<\/li>\n<\/ol>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Downy mildew on roses is a fungal disease that affects rose plants, causing damage to leaves and flowers and reducing their quality.And in this article on your site botanist WORLD of PLANTS, we will discuss the causes of this disease, its symptoms, methods of prevention and treatment to preserve the health and beauty of the Rose.<\/p>","protected":false},"author":51,"featured_media":83646,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[387],"tags":[],"class_list":{"0":"post-83909","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-387","9":"description-off"},"acf":[],"_links":{"self":[{"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/posts\/83909","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/users\/51"}],"replies":[{"embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/comments?post=83909"}],"version-history":[{"count":0,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/posts\/83909\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/media\/83646"}],"wp:attachment":[{"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/media?parent=83909"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/categories?post=83909"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/tags?post=83909"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}