{"id":82761,"date":"2024-04-14T21:32:25","date_gmt":"2024-04-14T21:32:25","guid":{"rendered":"https:\/\/worldofplants.ai\/?p=82761"},"modified":"2024-08-17T14:57:06","modified_gmt":"2024-08-17T14:57:06","slug":"chocolate-spot-on-bean-leaves","status":"publish","type":"post","link":"https:\/\/worldofplants.ai\/en\/chocolate-spot-on-bean-leaves\/","title":{"rendered":"Chocolate spot on bean leaves: symptoms, causes, 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\/chocolate-spot-on-bean-leaves\/#%D8%A3%D8%B9%D8%B1%D8%A7%D8%B6_%D8%A7%D9%84%D8%AA%D8%A8%D9%82%D8%B9_%D8%A7%D9%84%D8%B4%D9%88%D9%83%D8%A7%D9%84%D8%A7%D8%AA%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D9%88%D9%84\" >Symptoms of chocolate spot on bean leaves<\/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\/chocolate-spot-on-bean-leaves\/#%D8%A3%D8%B3%D8%A8%D8%A7%D8%A8_%D8%A7%D9%84%D8%AA%D8%A8%D9%82%D8%B9_%D8%A7%D9%84%D8%B4%D9%88%D9%83%D8%A7%D9%84%D8%A7%D8%AA%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D9%88%D9%84\" >Causes of chocolate spot on bean leaves<\/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\/chocolate-spot-on-bean-leaves\/#%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%AA%D8%A8%D9%82%D8%B9_%D8%A7%D9%84%D8%B4%D9%88%D9%83%D8%A7%D9%84%D8%A7%D8%AA%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D9%88%D9%84\" >Suitable conditions for the spread of chocolate spot on bean leaves<\/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\/chocolate-spot-on-bean-leaves\/#%D8%AF%D9%88%D8%B1%D8%A9_%D8%AA%D8%B7%D9%88%D8%B1_%D8%A7%D9%84%D8%AA%D8%A8%D9%82%D8%B9_%D8%A7%D9%84%D8%B4%D9%88%D9%83%D8%A7%D9%84%D8%A7%D8%AA%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D9%88%D9%84\" >Development cycle of chocolate spot on bean leaves<\/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\/chocolate-spot-on-bean-leaves\/#%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%D9%85%D8%B1%D8%B6\" >Losses of disease spread<\/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\/chocolate-spot-on-bean-leaves\/#%D8%A7%D8%B3%D8%AA%D8%B1%D8%A7%D8%AA%D9%8A%D8%AC%D9%8A%D8%A9_%D8%A7%D9%84%D9%85%D9%83%D8%A7%D9%81%D8%AD%D8%A9\" >Control strategy<\/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\/chocolate-spot-on-bean-leaves\/#%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%D8%AA%D8%A8%D9%82%D8%B9_%D8%A7%D9%84%D8%B4%D9%88%D9%83%D8%A7%D9%84%D8%A7%D8%AA%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D9%88%D9%84\" >Preventive measures to prevent chocolate spot on bean leaves<\/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\/chocolate-spot-on-bean-leaves\/#%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%D8%A7%D8%A6%D9%8A%D8%A9\" >Chemical control recommendations<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>Chocolate spot on bean leaves is one of the most dangerous fungal diseases that affect bean leaves, affecting the quality of the crop. In this article on your website, World of Plants, we will review methods of prevention and control.<\/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%AA%D8%A8%D9%82%D8%B9_%D8%A7%D9%84%D8%B4%D9%88%D9%83%D8%A7%D9%84%D8%A7%D8%AA%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D9%88%D9%84\"><\/span><strong>Symptoms of chocolate spot on bean leaves<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Name of the disease<\/strong>:<strong> Chocolate Leaf Spot in Broad Bean<\/strong><br><strong>Scientific name<\/strong>: Botrytis fabae Sard<br><strong>Type: <\/strong>innate<br><strong>Disease family: <\/strong>Sclerotiniaceae<\/p>\n\n\n\n<p>Symptoms of infection appear on old leaves, and then spread to... <a href=\"https:\/\/worldofplants.ai\/en\/\u062a\u0628\u0642\u0639-\u0639\u064a\u0646-\u0627\u0644\u0637\u0627\u0648\u0648\u0633-\u0639\u0644\u0649-\u0627\u0648\u0631\u0627\u0642-\u0627\u0644\u0632\u064a\u062a\u0648\u0646-\u062c\u0631\u0628\/\">The upper leaves are in the form of spots<\/a> Their color is reddish, turning to brown as the infection progresses. These spots take a circular shape and are scattered between the veins of the leaves. When exposed to sunlight in front of the face, a network of threads appears in the center of these spots, their color similar to the color of cocoa powder. The same symptoms also appear on the stem and leaf petioles, followed by the leaves drying and falling.<\/p>\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%AA%D8%A8%D9%82%D8%B9_%D8%A7%D9%84%D8%B4%D9%88%D9%83%D8%A7%D9%84%D8%A7%D8%AA%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D9%88%D9%84\"><\/span><strong>Causes of chocolate spot on bean leaves<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Remnants of the previous infected crop, high humidity, and dew formation<\/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%AA%D8%A8%D9%82%D8%B9_%D8%A7%D9%84%D8%B4%D9%88%D9%83%D8%A7%D9%84%D8%A7%D8%AA%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D9%88%D9%84\"><\/span><strong>Suitable conditions for the spread of chocolate spot on bean leaves<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The spread of this disease increases in cold, humid weather. High humidity and rainfall or dew are necessary for the germination and spread of the fungus\u2019 reproductive units. Suitable temperatures range from 12 to 18 degrees Celsius.<\/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%AA%D8%A8%D9%82%D8%B9_%D8%A7%D9%84%D8%B4%D9%88%D9%83%D8%A7%D9%84%D8%A7%D8%AA%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D9%88%D9%84\"><\/span><strong>Development cycle of chocolate spot on bean leaves<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The fungus maintains its vitality in the soil in the form of black, stony bodies. It can also be transmitted through the remains of the infected crop, and it is not certain that the disease is transmitted through seeds.<\/p>\n\n\n\n<p>The stone bodies germinate to produce a gametophyte, on which conidial spores are formed when appropriate moisture is available. These spores spread to cause infection on sensitive plants. The fungus grows at an optimum temperature between 15-20 \u00b0C, and it is necessary to have a relative humidity higher than 80% for conidial spores to form on the spots. These spores are spread by the wind to cause new infections that spread the disease quickly, starting from the initial infection spots during the crop\u2019s growing season. It appears that the availability of free water on the surface of the plant is not necessary for infection with conidia spores to occur, but it is sufficient to provide a relative humidity higher than 90%. At the end of the growing season, the fungus forms small black stones in the middle of the affected spots.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"691\" height=\"766\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/word-image-82761-1.png\" alt=\"\u0627\u0644\u062a\u0628\u0642\u0639 \u0627\u0644\u0634\u0648\u0643\u0627\u0644\u0627\u062a\u064a \u0639\u0644\u0649 \u0627\u0648\u0631\u0627\u0642 \u0627\u0644\u0641\u0648\u0644 - \u0639\u0627\u0644\u0645 \u0627\u0644\u0646\u0628\u0627\u062a\u0627\u062a\" class=\"wp-image-82767\" title=\"\u0627\u0644\u062a\u0628\u0642\u0639 \u0627\u0644\u0634\u0648\u0643\u0627\u0644\u0627\u062a\u064a \u0639\u0644\u0649 \u0627\u0648\u0631\u0627\u0642 \u0627\u0644\u0641\u0648\u0644 - \u0639\u0627\u0644\u0645 \u0627\u0644\u0646\u0628\u0627\u062a\u0627\u062a\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/word-image-82761-1.png 691w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/word-image-82761-1-768x851.png 768w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/word-image-82761-1-1200x1330.png 1200w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/word-image-82761-1-64x70.png 64w\" sizes=\"auto, (max-width: 691px) 100vw, 691px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"707\" height=\"600\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/chocolate-spot-and-rust-warning-for-bean-growers.jpeg\" alt=\"Chocolate spot and rust warning for bean growers - FarmingUK News\" class=\"wp-image-82769\" title=\"\u0627\u0644\u062a\u0628\u0642\u0639 \u0627\u0644\u0634\u0648\u0643\u0627\u0644\u0627\u062a\u064a \u0639\u0644\u0649 \u0627\u0648\u0631\u0627\u0642 \u0627\u0644\u0641\u0648\u0644 - \u0639\u0627\u0644\u0645 \u0627\u0644\u0646\u0628\u0627\u062a\u0627\u062a\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/chocolate-spot-and-rust-warning-for-bean-growers.jpeg 707w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/chocolate-spot-and-rust-warning-for-bean-growers-768x651.jpeg 768w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/chocolate-spot-and-rust-warning-for-bean-growers-1200x1018.jpeg 1200w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/chocolate-spot-and-rust-warning-for-bean-growers-64x54.jpeg 64w\" sizes=\"auto, (max-width: 707px) 100vw, 707px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"720\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/chocolate-spot-disease-of-faba-bean-vicia-faba-i.jpeg\" alt=\"Chocolate spot disease of Faba bean (Vicia faba) is caused by the fungus  Botrytis fabae.\" class=\"wp-image-82772\" title=\"\u0627\u0644\u062a\u0628\u0642\u0639 \u0627\u0644\u0634\u0648\u0643\u0627\u0644\u0627\u062a\u064a \u0639\u0644\u0649 \u0627\u0648\u0631\u0627\u0642 \u0627\u0644\u0641\u0648\u0644 - \u0639\u0627\u0644\u0645 \u0627\u0644\u0646\u0628\u0627\u062a\u0627\u062a\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/chocolate-spot-disease-of-faba-bean-vicia-faba-i.jpeg 1280w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/chocolate-spot-disease-of-faba-bean-vicia-faba-i-768x432.jpeg 768w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/chocolate-spot-disease-of-faba-bean-vicia-faba-i-1200x675.jpeg 1200w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/chocolate-spot-disease-of-faba-bean-vicia-faba-i-64x36.jpeg 64w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"432\" height=\"288\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/broad-bean-chocolate-spot-rhs-gardening.jpeg\" alt=\"Broad bean chocolate spot \/ RHS Gardening\" class=\"wp-image-82775\" title=\"\u0627\u0644\u062a\u0628\u0642\u0639 \u0627\u0644\u0634\u0648\u0643\u0627\u0644\u0627\u062a\u064a \u0639\u0644\u0649 \u0627\u0648\u0631\u0627\u0642 \u0627\u0644\u0641\u0648\u0644 - \u0639\u0627\u0644\u0645 \u0627\u0644\u0646\u0628\u0627\u062a\u0627\u062a\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/broad-bean-chocolate-spot-rhs-gardening.jpeg 432w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/broad-bean-chocolate-spot-rhs-gardening-768x512.jpeg 768w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/broad-bean-chocolate-spot-rhs-gardening-18x12.jpeg 18w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/broad-bean-chocolate-spot-rhs-gardening-1200x800.jpeg 1200w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/broad-bean-chocolate-spot-rhs-gardening-64x42.jpeg 64w\" sizes=\"auto, (max-width: 432px) 100vw, 432px\" \/><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1920\" src=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/disease-control-in-faba-bean-legumehub-eu.jpeg\" alt=\"Disease control in faba bean - legumehub.eu\" class=\"wp-image-82777\" title=\"\u0627\u0644\u062a\u0628\u0642\u0639 \u0627\u0644\u0634\u0648\u0643\u0627\u0644\u0627\u062a\u064a \u0639\u0644\u0649 \u0627\u0648\u0631\u0627\u0642 \u0627\u0644\u0641\u0648\u0644 - \u0639\u0627\u0644\u0645 \u0627\u0644\u0646\u0628\u0627\u062a\u0627\u062a\" srcset=\"https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/disease-control-in-faba-bean-legumehub-eu.jpeg 2560w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/disease-control-in-faba-bean-legumehub-eu-768x576.jpeg 768w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/disease-control-in-faba-bean-legumehub-eu-1200x900.jpeg 1200w, https:\/\/worldofplants.ai\/wp-content\/uploads\/2024\/04\/disease-control-in-faba-bean-legumehub-eu-64x48.jpeg 64w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/figure>\n<\/div>\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%D9%85%D8%B1%D8%B6\"><\/span><strong>Losses of disease spread<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>This disease affects <a href=\"https:\/\/worldofplants.ai\/en\/leaf-curl-disease\/\">Leaf disease<\/a> In general, this primarily affects the vegetative system and weakens the growth of the plant. When the infection becomes severe, symptoms appear on the stem, pods and seeds, thus reducing the quantity and quality of production. This disease causes the leaves to fall and causes a loss that may reach 10% of the total production.<\/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_%D8%A7%D9%84%D9%85%D9%83%D8%A7%D9%81%D8%AD%D8%A9\"><\/span><strong>Control strategy<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mechanical control<\/li>\n\n\n\n<li>Physical control (tillage, sanitation, pruning, solarization)<\/li>\n\n\n\n<li>Fungicides<\/li>\n<\/ul>\n\n\n\n<h2 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%D8%AA%D8%A8%D9%82%D8%B9_%D8%A7%D9%84%D8%B4%D9%88%D9%83%D8%A7%D9%84%D8%A7%D8%AA%D9%8A_%D8%B9%D9%84%D9%89_%D8%A7%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D9%88%D9%84\"><\/span><strong>Preventive measures to prevent chocolate spot on bean leaves<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>It is useful to leave an appropriate distance between plants, separate crowded plants, in order to reduce the relative humidity around the leaves, get rid of the remains of infected plants and burn them after harvest, follow an appropriate agricultural cycle, and pay attention to potassium fertilization, which increases the degree of tolerance of plants to infection with the disease.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Collect the remains of diseased plants from the previous season, remove them from the field, and burn them or bury them by deep plowing to get rid of the source of infection. The fungi and stone bodies of the fungus disappear after four months of burying them to a depth of 20 cm, and not leaving them exposed in the soil. The fungus was isolated from 13% of the diseased plant residues that were left in the field without plowing.<\/li>\n\n\n\n<li>Moderate irrigation and avoid sprinkler irrigation to avoid the high humidity necessary for the development of the disease.<\/li>\n\n\n\n<li>Cultivation of varieties <a href=\"https:\/\/worldofplants.ai\/en\/bean-rust-disease\/\">Disease tolerant beans<\/a>. 5. Exposing bean plants to red light, which reduces the infection rate, due to the formation of special anti-fungal substances in the leaves. Such lighting (lamps) can be placed inside protected crops and greenhouses.<\/li>\n<\/ol>\n\n\n\n<h2 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%D8%A7%D8%A6%D9%8A%D8%A9\"><\/span><strong>Chemical control recommendations<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Metalaxyl.<\/li>\n\n\n\n<li>Difenoconazole.<\/li>\n<\/ul>\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><strong> references:-<\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/plantix.net\/ar\/library\/plant-diseases\/100252\/chocolate-spot-of-broad-bean\" target=\"_blank\" rel=\"noopener\">Brown spot disease on beans - plantix<\/a><br><a href=\"https:\/\/agriculture.vic.gov.au\/biosecurity\/plant-diseases\/grain-pulses-and-cereal-diseases\/chocolate-spot-of-faba-bean\" target=\"_blank\" rel=\"noopener\">Chocolate spot of faba bean &#8211; agriculture victoria<\/a><br><a href=\"https:\/\/cropscience.bayer.co.uk\/agronomy-id\/diseases\/pea-and-bean-diseases\/chocolate-spot-beans\" target=\"_blank\" rel=\"noopener\">Chocolate Spot &#8211; cropscience<\/a><br><a href=\"https:\/\/www.rhs.org.uk\/disease\/broad-bean-chocolate-spot\" target=\"_blank\" rel=\"noopener\">Broad bean chocolate spot &#8211; rhs<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Chocolate spot on bean leaves is one of the most dangerous fungal diseases that affect bean leaves, affecting the quality of the crop. In this article on your website, World of Plants, we will review methods of prevention and control.<\/p>","protected":false},"author":1,"featured_media":82777,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[371],"tags":[],"class_list":{"0":"post-82761","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-371","9":"description-off"},"acf":[],"_links":{"self":[{"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/posts\/82761","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=82761"}],"version-history":[{"count":3,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/posts\/82761\/revisions"}],"predecessor-version":[{"id":86913,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/posts\/82761\/revisions\/86913"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/media\/82777"}],"wp:attachment":[{"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/media?parent=82761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/categories?post=82761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/tags?post=82761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}