{"id":84282,"date":"2024-05-20T14:29:25","date_gmt":"2024-05-20T14:29:25","guid":{"rendered":"https:\/\/worldofplants.ai\/?p=84282"},"modified":"2024-07-23T03:12:51","modified_gmt":"2024-07-23T03:12:51","slug":"pistachio-leaf-spot","status":"publish","type":"post","link":"https:\/\/worldofplants.ai\/en\/pistachio-leaf-spot\/","title":{"rendered":"Pistachio leaf spot disease: causes, symptoms, 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\/pistachio-leaf-spot\/#%D8%A3%D8%B9%D8%B1%D8%A7%D8%B6_%D9%85%D8%B1%D8%B6_%D8%AA%D8%A8%D9%82%D8%B9_%D8%A3%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D8%B3%D8%AA%D9%82_%D8%A7%D9%84%D8%AD%D9%84%D8%A8%D9%8A\" >Symptoms of pistachio leaf spot disease<\/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\/pistachio-leaf-spot\/#%D8%A3%D8%B3%D8%A8%D8%A7%D8%A8_%D9%85%D8%B1%D8%B6_%D8%AA%D8%A8%D9%82%D8%B9_%D8%A3%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D8%B3%D8%AA%D9%82_%D8%A7%D9%84%D8%AD%D9%84%D8%A8%D9%8A\" >Causes of pistachio leaf spot disease<\/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\/pistachio-leaf-spot\/#%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_%D9%84%D9%85%D8%B1%D8%B6_%D8%AA%D8%A8%D9%82%D8%B9_%D8%A3%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D8%B3%D8%AA%D9%82_%D8%A7%D9%84%D8%AD%D9%84%D8%A8%D9%8A\" >Organic control of pistachio leaf spot disease<\/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\/pistachio-leaf-spot\/#%D8%A7%D9%84%D9%85%D9%83%D8%A7%D9%81%D8%AD%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%AA%D8%A8%D9%82%D8%B9_%D8%A3%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D8%B3%D8%AA%D9%82_%D8%A7%D9%84%D8%AD%D9%84%D8%A8%D9%8A\" >Collect fallen leaves and burn them.<\/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\/pistachio-leaf-spot\/#%D8%A7%D8%AC%D8%B1%D8%A7%D8%A1%D8%A7%D8%AA_%D9%88%D9%82%D8%A7%D8%A6%D9%8A%D8%A9_%D9%84%D9%85%D8%B1%D8%B6_%D8%AA%D8%A8%D9%82%D8%B9_%D8%A3%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D8%B3%D8%AA%D9%82_%D8%A7%D9%84%D8%AD%D9%84%D8%A8%D9%8A\" >Preventive measures for pistachio leaf spot disease<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>Symptoms of pistachio leaf spot disease appear in the form of dry brown spots on both sides of the leaf, followed by paleness or redness of the leaf blades. The spots gradually extend toward the center, so the leaves wither and fall early. In this article on your website, World of Plants, we will review the causes and symptoms of pistachio leaf spot disease and how to combat it effectively to preserve the pistachio plant.<\/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%AA%D8%A8%D9%82%D8%B9_%D8%A3%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D8%B3%D8%AA%D9%82_%D8%A7%D9%84%D8%AD%D9%84%D8%A8%D9%8A\"><\/span><strong>Symptoms of pistachio leaf spot disease<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The disease causes circular to irregular, brown to dark brown, necrotic spots on both sides of the leaf. These spots may increase in abundance on the leaves, reaching a diameter of between 1 and 2 mm. Over time, the leaf gradually turns pale green and then brown, starting at the tips and extending toward the center. <\/p>\n\n\n\n<p>Severe infections may lead to leaves drying out and falling prematurely. Very small spots can also appear on the fruits. If the disease spreads epidemically, this can lead to premature defoliation and reduced tree activity. Attacks usually begin in April from pollen found on leaf litter left over from the previous year.<\/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_%D9%85%D8%B1%D8%B6_%D8%AA%D8%A8%D9%82%D8%B9_%D8%A3%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D8%B3%D8%AA%D9%82_%D8%A7%D9%84%D8%AD%D9%84%D8%A8%D9%8A\"><\/span><strong>Causes of pistachio leaf spot disease<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Symptoms are caused by infection with several fungi of the genus Mycosvarella, especially Mycosvarla pestacina in the Mediterranean region. The fungus hibernates on fallen leaves and debris left in the infected soil from previous seasons. The primary contamination occurs through the fungal pollen found on these leaves, where rain spray helps disperse the spores. <\/p>\n\n\n\n<p>Secondary infections are caused by other types of germs that are also spread through rain or sprinkler water, even late in the season. High temperatures between 20 and 24 degrees Celsius and a humid and foggy climate are considered favorable conditions for the spread and reproduction of this pathogen.<\/p>\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_%D9%84%D9%85%D8%B1%D8%B6_%D8%AA%D8%A8%D9%82%D8%B9_%D8%A3%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D8%B3%D8%AA%D9%82_%D8%A7%D9%84%D8%AD%D9%84%D8%A8%D9%8A\"><\/span><strong>Organic control of pistachio leaf spot disease<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>When the first symptoms appear, spray with copper or products containing sulfur, and spray after the fruit reaches about 1 cm in size to avoid toxic damage to very small fruits.<\/p>\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%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%AA%D8%A8%D9%82%D8%B9_%D8%A3%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D8%B3%D8%AA%D9%82_%D8%A7%D9%84%D8%AD%D9%84%D8%A8%D9%8A\"><\/span><strong>Collect fallen leaves and burn them.<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>When the first symptoms appear, spray with copper or products containing sulfur, and spray after the fruit reaches about 1 cm in size to avoid toxic damage to very small fruits. <\/p>\n\n\n\n<p>It is important to diversify the use of different active ingredients to avoid the development of fungal resistance. Preventive treatments from the bud growth stage are also effective in preventing the onset of the disease.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%D8%A7%D8%AC%D8%B1%D8%A7%D8%A1%D8%A7%D8%AA_%D9%88%D9%82%D8%A7%D8%A6%D9%8A%D8%A9_%D9%84%D9%85%D8%B1%D8%B6_%D8%AA%D8%A8%D9%82%D8%B9_%D8%A3%D9%88%D8%B1%D8%A7%D9%82_%D8%A7%D9%84%D9%81%D8%B3%D8%AA%D9%82_%D8%A7%D9%84%D8%AD%D9%84%D8%A8%D9%8A\"><\/span><strong>Preventive measures for pistachio leaf spot disease<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Inspect the orchard regularly to detect the initial appearance of spots.<\/li>\n\n\n\n<li>Collect fallen leaves and burn them.<\/li>\n\n\n\n<li>Fertilize trees or enrich the soil with organic matter to improve the natural resistance of plants.<\/li>\n\n\n\n<li>Plan to prune trees annually during dormancy to improve ventilation and reduce the risk of infection.<\/li>\n\n\n\n<li>Clear the garden and the areas around the plants of replacement weeds.<\/li>\n\n\n\n<li>Avoid touching diseased plants in wet weather to prevent the spread of the pathogen.<\/li>\n\n\n\n<li>Use drip irrigation systems instead of sprinkler irrigation.<\/li>\n\n\n\n<li>Bury dead leaves by deep tilling in late fall and early winter.<\/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><strong><a href=\"https:\/\/plantix.net\/ar\/library\/plant-diseases\/100258\/leaf-spot-of-pistachio\/\" data-type=\"link\" data-id=\"https:\/\/plantix.net\/ar\/library\/plant-diseases\/100258\/leaf-spot-of-pistachio\/\" target=\"_blank\" rel=\"noopener\">Pistachio leaf spot - plantix<br><\/a><a href=\"https:\/\/kayftazra3.com\/a\/%D8%A3%D9%85%D8%B1%D8%A7%D8%B6-%D8%B4%D8%AC%D8%B1%D8%A9-%D8%A7%D9%84%D9%81%D8%B3%D8%AA%D9%82-%D8%A7%D9%84%D8%AD%D9%84%D8%A8%D9%8A-%D8%A7%D9%84%D8%A3%D8%B3%D8%A8%D8%A7%D8%A8-%D9%88%D8%A7%D9%84%D8%B9%D9%84%D8%A7%D8%AC#\" data-type=\"link\" data-id=\"https:\/\/kayftazra3.com\/a\/%D8%A3%D9%85%D8%B1%D8%A7%D8%B6-%D8%B4%D8%AC%D8%B1%D8%A9-%D8%A7%D9%84%D9%81%D8%B3%D8%AA%D9%82-%D8%A7%D9%84%D8%AD%D9%84%D8%A8%D9%8A-%D8%A7%D9%84%D8%A3%D8%B3%D8%A8%D8%A7%D8%A8-%D9%88%D8%A7%D9%84%D8%B9%D9%84%D8%A7%D8%AC#\" target=\"_blank\" rel=\"noopener\">Pistachio tree diseases: causes and treatment - kayftazra3<\/a><\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>\u062a\u0638\u0647\u0631 \u0623\u0639\u0631\u0627\u0636 \u0645\u0631\u0636 \u062a\u0628\u0642\u0639 \u0623\u0648\u0631\u0627\u0642 \u0627\u0644\u0641\u0633\u062a\u0642 \u0627\u0644\u062d\u0644\u0628\u064a \u0639\u0644\u0649 \u0647\u064a\u0626\u0629 \u0628\u0642\u0639 \u0628\u0646\u064a\u0629 \u062c\u0627\u0641\u0629 \u0639\u0644\u0649 \u062c\u0627\u0646\u0628\u064a \u0627\u0644\u0648\u0631\u0642\u0629\u060c \u062b\u0645 \u064a\u062a\u0628\u0639\u0647 \u0634\u062d\u0648\u0628 \u0623\u0648 \u0627\u062d\u0645\u0631\u0627\u0631 \u0644\u0634\u0641\u0631\u0627\u062a \u0627\u0644\u0623\u0648\u0631\u0627\u0642\u060c \u0648\u062a\u0645\u062a\u062f \u0627\u0644\u0628\u0642\u0639 \u062a\u062f\u0631\u064a\u062c\u064a\u0627\u064b \u0646\u062d\u0648 \u0627\u0644\u0648\u0633\u0637\u060c \u0641\u062a\u0630\u0628\u0644 \u0627\u0644\u0623\u0648\u0631\u0627\u0642 \u0648\u062a\u0633\u0642\u0637 \u0645\u0628\u0643\u0631\u0627\u064b\u061b \u061b\u0648\u0641\u064a \u0647\u0630\u0647 \u0627\u0644\u0645\u0642\u0627\u0644\u0629 \u0641\u064a \u0645\u0648\u0642\u0639\u0643\u0645 \u0639\u0627\u0644\u0645 \u0627\u0644\u0646\u0628\u0627\u062a\u0627\u062a WORLD OF PLANTS\u060c \u0633\u0648\u0641 \u0646\u0633\u062a\u0639\u0631\u0636 \u0623\u0633\u0628\u0627\u0628 \u0648\u0623\u0639\u0631\u0627\u0636 \u0645\u0631\u0636 \u062a\u0628\u0642\u0639 \u0623\u0648\u0631\u0627\u0642 \u0627\u0644\u0641\u0633\u062a\u0642 \u0627\u0644\u062d\u0644\u0628\u064a \u0648\u0643\u064a\u0641\u064a\u0629 \u0645\u0643\u0627\u0641\u062d\u062a\u0647 \u0628\u0641\u0639\u0627\u0644\u064a\u0629 \u0644\u0644\u062d\u0641\u0627\u0638 \u0639\u0644\u0649&hellip;<\/p>","protected":false},"author":51,"featured_media":84290,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[404],"tags":[],"class_list":{"0":"post-84282","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","6":"hentry","7":"category-404","9":"description-off"},"acf":[],"_links":{"self":[{"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/posts\/84282","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=84282"}],"version-history":[{"count":0,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/posts\/84282\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/media\/84290"}],"wp:attachment":[{"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/media?parent=84282"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/categories?post=84282"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/worldofplants.ai\/en\/wp-json\/wp\/v2\/tags?post=84282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}