{"id":27807,"date":"2026-09-11T12:40:19","date_gmt":"2026-09-11T16:40:19","guid":{"rendered":"https:\/\/mmcereais.com.br\/2026\/milho\/mancha-branca-no-milho-quando-iniciar-o-controle-com-fungicida\/"},"modified":"2026-09-11T12:40:19","modified_gmt":"2026-09-11T16:40:19","slug":"mancha-branca-no-milho-quando-iniciar-o-controle-com-fungicida","status":"publish","type":"post","link":"https:\/\/mmcereais.com.br\/en\/2026\/milho\/mancha-branca-no-milho-quando-iniciar-o-controle-com-fungicida\/","title":{"rendered":"White spot in corn: when to start fungicide control."},"content":{"rendered":"<p><img decoding=\"async\" src=\"http:\/\/www.agrolink.com.br\/upload\/imagens-resizes\/publi-5b00f3b276184034ae643932cc787265_858x483.jpg\" \/><\/p>\n<div class=\"section-description section-description-noticias mt-3\">\n<p style=\"text-align:justify\">White spot is among the main foliar diseases of <a href=\"https:\/\/www.agrolink.com.br\/culturas\/milho?utm_source=agrolink-detalhe-noticia&amp;utm_medium=detalhe-noticia&amp;utm_campaign=links-internos%09\" target=\"_blank\" rel=\"noopener\">corn<\/a> and can cause significant losses when it advances to the leaves responsible for grain formation and filling. Therefore, the timing of the first fungicide application should be determined based on the risk to each crop, and not on a fixed date.\n<\/p>\n<div id=\"agk_14000_pos_3_sidebar_mobile\" style=\"text-align: center;\" class=\"mb-4\">\n<\/div>\n<div id=\"agk_14000_pos_4_conteudo_desktop\" style=\"text-align: center;\" class=\"d-none d-lg-block mb-md-4\">\n<\/div>\n<p style=\"text-align:justify\">Attention should increase from row closure and during the stages close to tasseling and flowering. The main warning sign is the progression of lesions from the lower leaves to the middle third of the plant, especially in areas with a history of the disease.\n<\/p>\n<div id=\"agk_14000_pos_4_conteudo_mobile\" style=\"text-align: center;\" class=\"mb-4\">\n<\/div>\n<div id=\"agk_14000_pos_5_conteudo_desktop\" style=\"text-align: center;\" class=\"d-none d-lg-block mb-md-4\">\n<\/div>\n<p style=\"text-align:justify\">The hybrid used and the presence of straw mulch should also be considered. <a href=\"https:\/\/www.agrolink.com.br\/culturas\/milho?utm_source=agrolink-detalhe-noticia&amp;utm_medium=detalhe-noticia&amp;utm_campaign=links-internos%09\" target=\"_blank\" rel=\"noopener\">corn<\/a>Plant density and cropping system. Crops with frequent succession of <a href=\"https:\/\/www.agrolink.com.br\/culturas\/milho?utm_source=agrolink-detalhe-noticia&amp;utm_medium=detalhe-noticia&amp;utm_campaign=links-internos%09\" target=\"_blank\" rel=\"noopener\">corn<\/a> and more susceptible materials tend to present a greater risk.<\/p>\n<p style=\"text-align:justify\">Climate is another important factor. Periods of high humidity, prolonged dew, cloudy days, and mild temperatures favor the development of white spot and can accelerate the progression of the disease.<\/p>\n<p style=\"text-align:justify\">In practice, the decision should consider four factors: the stage of the crop, the location and intensity of the spots, the history of the plot, and weather conditions. Frequent monitoring allows for the identification of disease progression before the most important leaves are affected.\n<\/p>\n<div id=\"agk_14000_pos_5_conteudo_mobile\" style=\"text-align: center;\" class=\"mb-4\">\n<\/div>\n<p style=\"text-align:justify\">When application is necessary, the use of fungicides must follow the label, package insert, agronomic prescription, and guidance of a qualified professional.<\/p>\n<\/p><\/div>\n<h6><em>THE <strong>MM Cereais<\/strong> works with the best grains on the market and also keeps you up to date with the latest news and analyses on agribusiness.<br \/>\nDon&#039;t forget to follow our social networks.<\/em><\/h6>\n<p><a href=\"https:\/\/www.agrolink.com.br\/noticias\/mancha-branca-no-milho--quando-iniciar-o-controle-com-fungicida_518760.html\" target=\"_blank\" rel=\"noopener\">Access News Source <\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>White spot is among the main foliar diseases of corn and can cause losses\u2026<\/p>","protected":false},"author":1,"featured_media":27650,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[223],"tags":[244,248,255,249,254,250,246,247,256,245,253,252,251],"class_list":["post-27807","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-milho","tag-agrolink","tag-agrotoxicos","tag-artigos-tecnicos","tag-classificados","tag-colunistas","tag-compra","tag-cotacoes","tag-defensivos","tag-eventos","tag-noticias","tag-precos-agricolas","tag-previsao-do-tempo","tag-venda"],"_links":{"self":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/posts\/27807","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/comments?post=27807"}],"version-history":[{"count":0,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/posts\/27807\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/media\/27650"}],"wp:attachment":[{"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/media?parent=27807"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/categories?post=27807"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mmcereais.com.br\/en\/wp-json\/wp\/v2\/tags?post=27807"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}