{"id":81177,"date":"2024-03-25T10:15:19","date_gmt":"2024-03-25T10:15:19","guid":{"rendered":"https:\/\/mohameday987.shop\/staging1\/?p=81177"},"modified":"2024-08-15T17:41:41","modified_gmt":"2024-08-15T17:41:41","slug":"powdery-mildew-on-grapes","status":"publish","type":"post","link":"https:\/\/worldofplants.ai\/en\/powdery-mildew-on-grapes\/","title":{"rendered":"Powdery mildew on grapes: causes, symptoms, control"},"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\/powdery-mildew-on-grapes\/#%D8%A3%D8%B9%D8%B1%D8%A7%D8%B6_%D8%A7%D9%84%D8%A8%D9%8A%D8%A7%D8%B6_%D8%A7%D9%84%D8%AF%D9%82%D9%8A%D9%82%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%84%D8%B9%D9%86%D8%A8\" >Symptoms of powdery mildew on grapes<\/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\/powdery-mildew-on-grapes\/#%D8%A3%D8%B3%D8%A8%D8%A7%D8%A8_%D8%A7%D9%84%D8%A8%D9%8A%D8%A7%D8%B6_%D8%A7%D9%84%D8%AF%D9%82%D9%8A%D9%82%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%84%D8%B9%D9%86%D8%A8\" >Causes of powdery mildew on grapes<\/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\/powdery-mildew-on-grapes\/#%D8%A7%D9%84%D8%B8%D8%B1%D9%88%D9%81_%D8%A7%D9%84%D9%85%D9%86%D8%A7%D8%B3%D8%A8%D8%A9_%D9%84%D8%A7%D9%86%D8%AA%D8%B4%D8%A7%D8%B1_%D8%A7%D9%84%D8%A8%D9%8A%D8%A7%D8%B6_%D8%A7%D9%84%D8%AF%D9%82%D9%8A%D9%82%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%84%D8%B9%D9%86%D8%A8\" >Suitable conditions for the spread of powdery mildew on grapes<\/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\/powdery-mildew-on-grapes\/#%D8%AF%D9%88%D8%B1%D8%A9_%D8%AA%D8%B7%D9%88%D8%B1_%D8%A7%D9%84%D8%A8%D9%8A%D8%A7%D8%B6_%D8%A7%D9%84%D8%AF%D9%82%D9%8A%D9%82%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%84%D8%B9%D9%86%D8%A8\" >Powdery mildew development cycle on grapes<\/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\/powdery-mildew-on-grapes\/#%D8%AE%D8%B3%D8%A7%D8%A6%D8%B1_%D8%A7%D9%86%D8%AA%D8%B4%D8%A7%D8%B1_%D8%A7%D9%84%D8%A8%D9%8A%D8%A7%D8%B6_%D8%A7%D9%84%D8%AF%D9%82%D9%8A%D9%82%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%84%D8%B9%D9%86%D8%A8\" >Losses of powdery mildew on grapes<\/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\/powdery-mildew-on-grapes\/#%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_%D8%A7%D9%84%D8%A8%D9%8A%D8%A7%D8%B6_%D8%A7%D9%84%D8%AF%D9%82%D9%8A%D9%82%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%84%D8%B9%D9%86%D8%A8\" >Strategy for controlling powdery mildew on grapes<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/worldofplants.ai\/en\/powdery-mildew-on-grapes\/#%D8%AA%D8%AF%D8%A7%D8%A8%D9%8A%D8%B1_%D9%88%D9%82%D8%A7%D8%A6%D9%8A%D8%A9_%D9%84%D9%85%D9%86%D8%B9_%D8%AD%D8%AF%D9%88%D8%AB_%D8%A7%D9%84%D9%85%D8%B1%D8%B6\" >Preventive measures to prevent the occurrence of the disease<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/worldofplants.ai\/en\/powdery-mildew-on-grapes\/#%D8%AA%D9%88%D8%B5%D9%8A%D8%A7%D8%AA_%D9%85%D9%83%D8%A7%D9%81%D8%AD%D8%A9_%D9%83%D9%8A%D9%85%D9%8A%D8%A7%D8%A6%D9%8A%D8%A9_%D9%88%D8%B9%D8%B6%D9%88%D9%8A%D8%A9\" >Chemical and organic control recommendations<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<p>Grape powdery mildew is a common fungal disease that threatens yield and fruit quality, requiring effective control strategies. In this article on your website, WORLD OF PLANTS, we review the symptoms of this disease and ways to prevent it to reduce its impact on grapes.<\/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_%D8%A7%D9%84%D8%A8%D9%8A%D8%A7%D8%B6_%D8%A7%D9%84%D8%AF%D9%82%D9%8A%D9%82%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%84%D8%B9%D9%86%D8%A8\"><\/span><strong>Symptoms of powdery mildew on grapes<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Scientific name<\/strong> : Powdery mildew of grapes<\/li>\n\n\n\n<li><strong>Type of disease: <\/strong>innate<\/li>\n\n\n\n<li><strong>The causative fungus<\/strong> :Erysiphe necator<\/li>\n<\/ul>\n\n\n\n<p>The fungus infects all green grape tissue, and symptoms of the disease begin to appear in the form of small, dusty spots, white or gray in color, and mealy-looking on the upper or lower surface, or on both surfaces of the leaf, but they are more evident on the upper surface.<\/p>\n\n\n\n<p>When appropriate conditions are available, these spots expand and connect with each other to cover most or all of the surface of the leaf. As the infection progresses, the color of the affected tissue turns brown and the leaves end up withering and falling.<\/p>\n\n\n\n<p>Severely infected young shoots may stop growing and dry up if infected early.<\/p>\n\n\n\n<p>Old infections appear on dormant branches in the form of reddish-brown areas.<\/p>\n\n\n\n<p>Infection of flower clusters leads to failure to set<\/p>\n\n\n\n<p>The growth of fruits stops if they are infected at the beginning of their formation. If it is infected at an advanced stage of maturity, it grows irregularly, its surface becomes rough, and it often cracks.<\/p>\n\n\n\n<p>Early infection of fruits leads to small size of the seeds and a decrease in their sugar content.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"1440\" height=\"1920\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-1.jpeg\" alt=\"Powdery mildew on grapes - the world of plants\" class=\"wp-image-81183\" title=\"Powdery mildew on grapes - the world of plants\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-1.jpeg 1440w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-1-225x300.jpeg 225w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-1-768x1024.jpeg 768w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-1-1152x1536.jpeg 1152w\" sizes=\"auto, (max-width: 1440px) 100vw, 1440px\" \/><figcaption class=\"wp-element-caption\"><strong>An image showing the symptoms of the onset of powdery mildew on grapes.<\/strong><\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"391\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-2.jpeg\" alt=\"Powdery mildew on grapes - the world of plants\" class=\"wp-image-81189\" title=\"Powdery mildew on grapes - the world of plants\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-2.jpeg 640w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-2-300x183.jpeg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption class=\"wp-element-caption\"><strong>An image showing the symptoms of powdery mildew on grapes.<\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"2048\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-3.jpeg\" alt=\"Powdery mildew on grapes - the world of plants\" class=\"wp-image-81196\" title=\"Powdery mildew on grapes - the world of plants\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-3.jpeg 1536w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-3-225x300.jpeg 225w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-3-768x1024.jpeg 768w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-3-1152x1536.jpeg 1152w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><figcaption class=\"wp-element-caption\"><strong>A picture showing you the symptoms of the infection when it becomes severe.<\/strong><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%A3%D8%B3%D8%A8%D8%A7%D8%A8_%D8%A7%D9%84%D8%A8%D9%8A%D8%A7%D8%B6_%D8%A7%D9%84%D8%AF%D9%82%D9%8A%D9%82%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%84%D8%B9%D9%86%D8%A8\"><\/span><strong>Causes of powdery mildew on grapes<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Powdery mildew grows when there is moisture and a moderate temperature, and the best humidity for its growth is more than 75%, with a temperature between 20 - 28 degrees Celsius. Therefore, its growth begins in the spring and increases in the summer.<\/p>\n\n\n\n<p>Its growth decreases when exposed to direct sunlight, or in the presence of strong lighting, so we see the fungus growing on the shady parts of the tree.<\/p>\n\n\n\n<p>The susceptibility of grape varieties to powdery mildew varies, and in general, European varieties are more susceptible to the disease<\/p>\n\n\n\n<p>Mushroom germination does not require the presence of water or high air humidity, and it can germinate in relatively dry weather<\/p>\n\n\n\n<p>Early-maturing grape varieties usually escape infection. Because of their rapid maturity before weather conditions become suitable for infection to occur, and vice versa in the case of late-maturing varieties, where the damage from infection increases.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%A7%D9%84%D8%B8%D8%B1%D9%88%D9%81_%D8%A7%D9%84%D9%85%D9%86%D8%A7%D8%B3%D8%A8%D8%A9_%D9%84%D8%A7%D9%86%D8%AA%D8%B4%D8%A7%D8%B1_%D8%A7%D9%84%D8%A8%D9%8A%D8%A7%D8%B6_%D8%A7%D9%84%D8%AF%D9%82%D9%8A%D9%82%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%84%D8%B9%D9%86%D8%A8\"><\/span><strong>Suitable conditions for the spread of powdery mildew on grapes<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The most suitable temperature for mushroom development and growth is 20 to 30 degrees Celsius, and it completely stops activity and growth when temperatures rise above 38 degrees.<\/p>\n\n\n\n<p>Dim light.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%AF%D9%88%D8%B1%D8%A9_%D8%AA%D8%B7%D9%88%D8%B1_%D8%A7%D9%84%D8%A8%D9%8A%D8%A7%D8%B6_%D8%A7%D9%84%D8%AF%D9%82%D9%8A%D9%82%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%84%D8%B9%D9%86%D8%A8\"><\/span><strong>Powdery mildew development cycle on grapes<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The fungus spends the winter in the form of sticky fruits, or dormant gametophytes inside the bud scales, which are responsible for the initial infection.<\/p>\n\n\n\n<p>Ascospores are released in the spring, carried by the wind, and germinate on the surfaces of green tissue to cause the initial infection.<\/p>\n\n\n\n<p>Conidia spores are produced after 6-8 days and are responsible for the spread of the disease during the season and the occurrence of secondary infections.<\/p>\n\n\n\n<p>In the fall, oocysts form again on infected leaves and branches.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%AE%D8%B3%D8%A7%D8%A6%D8%B1_%D8%A7%D9%86%D8%AA%D8%B4%D8%A7%D8%B1_%D8%A7%D9%84%D8%A8%D9%8A%D8%A7%D8%B6_%D8%A7%D9%84%D8%AF%D9%82%D9%8A%D9%82%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%84%D8%B9%D9%86%D8%A8\"><\/span><strong>Losses of powdery mildew on grapes<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Vigorous attacks cause a loss of 50 to 70% of production (loss may be 100% in early infections on sensitive varieties)<\/p>\n\n\n\n<p>When the fruits are infected, they become deformed and cracked before they ripen, and their marketing value decreases<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"640\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-4.jpeg\" alt=\"Powdery mildew on grapes - the world of plants\" class=\"wp-image-81201\" title=\"Powdery mildew on grapes - the world of plants\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-4.jpeg 960w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-4-300x200.jpeg 300w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-4-768x512.jpeg 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption class=\"wp-element-caption\"><strong>-A picture showing the symptoms of infection on the fruit.<\/strong><\/figcaption><\/figure>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"840\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-5.jpeg\" alt=\"Powdery mildew on grapes - the world of plants\" class=\"wp-image-81208\" style=\"width:800px;height:auto\" title=\"Powdery mildew on grapes - the world of plants\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-5.jpeg 800w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-5-286x300.jpeg 286w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/03\/word-image-81177-5-768x806.jpeg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\"><strong>A picture shows you a tree infected with powdery mildew.<\/strong><\/figcaption><\/figure>\n<\/div>\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_%D8%A7%D9%84%D8%A8%D9%8A%D8%A7%D8%B6_%D8%A7%D9%84%D8%AF%D9%82%D9%8A%D9%82%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%84%D8%B9%D9%86%D8%A8\"><\/span><strong>Strategy for controlling powdery mildew on grapes<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%AA%D8%AF%D8%A7%D8%A8%D9%8A%D8%B1_%D9%88%D9%82%D8%A7%D8%A6%D9%8A%D8%A9_%D9%84%D9%85%D9%86%D8%B9_%D8%AD%D8%AF%D9%88%D8%AB_%D8%A7%D9%84%D9%85%D8%B1%D8%B6\"><\/span><strong>Preventive measures to prevent the occurrence of the disease<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Infestation is monitored by observing the onset of infestation, which usually occurs on shady or densely branched parts of the grape tree.<\/p>\n\n\n\n<p>Immediately after pruning the grapes, you must remove the stem bark and clean the branches well to get rid of the hidden fungus.<\/p>\n\n\n\n<p>Keeping the surroundings near crops clean by eliminating weeds, plant dirt, damaged parts, and unwanted plants.<\/p>\n\n\n\n<p>Exposing the grape tree to ventilation, sunlight, and light: This is done by opening the heart of the tree by redistributing and directing the green branches and cutting the side branches, and by thinning the leaves around the grape cluster after the contracting stage (thinning the leaves of the tree). And through good pruning in winter.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%AA%D9%88%D8%B5%D9%8A%D8%A7%D8%AA_%D9%85%D9%83%D8%A7%D9%81%D8%AD%D8%A9_%D9%83%D9%8A%D9%85%D9%8A%D8%A7%D8%A6%D9%8A%D8%A9_%D9%88%D8%B9%D8%B6%D9%88%D9%8A%D8%A9\"><\/span><strong>Chemical and organic control recommendations<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Organic control: Fogging with fine sand. This process is highly efficient in combating the disease because the dirt contains silicon dioxide, which absorbs moisture from the surfaces of the leaves, branches and fruits of grapes, which affects the humidity level suitable for the growth and development of the disease.<\/p>\n\n\n\n<p>Chemical control: Mix winter oil + a fungicide such as tebuconazole, azoxycitroene, or mancozeb and metalaxyl, with a general insecticide containing cypermethrin or deltamethrin 2.5%.<\/p>\n\n\n\n<p>We recommend using one or two sprays of micronized sulfur alone without mixing.<\/p>\n\n\n\n<p>Copper sulphate may replace the need for many fungicides, and we recommend continuing to spray it immediately after pruning at intervals.<\/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>References<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gadoury, D. M., Seem, R. C., Pearson, R. C., Wilcox, W. F., &amp; Dunst, R. M. (2001). Effects of powdery mildew on vine growth, yield, and quality of concord grapes. Plant disease, 85(2), 137-140<\/li>\n\n\n\n<li>Delp, C. J. (1954). Effect of temperature and humidity on the grape powdery mildew fungus. Phytopathology, 44(11).<\/li>\n\n\n\n<li>Hartman, John, and Julie Beale. \u201cPowdery mildew of grape.\u201d Plant pathology fact sheet PPFS-FR-S-12 13 (2008).<\/li>\n\n\n\n<li><a href=\"https:\/\/apsjournals.apsnet.org\/doi\/abs\/10.1094\/PDIS.2001.85.2.137\" target=\"_blank\" rel=\"noopener\">Effects of Powdery Mildew on Vine Growth, Yield, and Quality of Concord Grapes &#8211; The American Phytopathological Society<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Grape powdery mildew is a common fungal disease that threatens yield and fruit quality, requiring effective control strategies. In this article on your website, WORLD OF PLANTS, we review the symptoms of this disease and ways to prevent it to reduce its impact on grapes.<\/p>","protected":false},"author":1,"featured_media":81196,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[367],"tags":[],"class_list":{"0":"post-81177","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-367","9":"description-off"},"acf":[],"_links":{"self":[{"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/posts\/81177","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/comments?post=81177"}],"version-history":[{"count":2,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/posts\/81177\/revisions"}],"predecessor-version":[{"id":86741,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/posts\/81177\/revisions\/86741"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/media\/81196"}],"wp:attachment":[{"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/media?parent=81177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/categories?post=81177"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/tags?post=81177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}