{"id":4181,"date":"2018-06-13T09:52:39","date_gmt":"2018-06-13T12:52:39","guid":{"rendered":"http:\/\/blog.rehagro.xyz\/?p=4181"},"modified":"2026-04-09T10:47:13","modified_gmt":"2026-04-09T13:47:13","slug":"aprenda-a-manejar-buva-e-capim-amargoso","status":"publish","type":"post","link":"https:\/\/rehagro.com.br\/blog\/aprenda-a-manejar-buva-e-capim-amargoso\/","title":{"rendered":"Capim-amargoso e buva: como controlar em lavouras de gr\u00e3os?"},"content":{"rendered":"<p>O <strong>capim-amargoso<\/strong> (<em>Digitaria insularis)<\/em>\u00a0\u00e9 uma planta perene com <strong>alta capacidade de dispers\u00e3o pelo vento<\/strong> e com excelente adaptabilidade as diferentes regi\u00f5es brasileiras.<\/p>\n<p>Al\u00e9m destas caracter\u00edsticas que o fazem ser uma planta de dif\u00edcil controle, o mesmo apresenta biotipos resistentes \u00e0 mol\u00e9cula de glifosato dificultando ainda mais seu manejo.<\/p>\n<p>A <strong>buva<\/strong> (<em>Conyza spp<\/em>.), tamb\u00e9m \u00e9 uma planta daninha que <strong>apresenta resist\u00eancia ao glifosato<\/strong>, com elevada adapta\u00e7\u00e3o aos sistemas produtivos e alta produ\u00e7\u00e3o de sementes.<\/p>\n<div style=\"background-color: #efefef; padding-left: 10px; padding-right: 5px; border-radius: 10px;\">\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><strong><span style=\"font-size: 14pt;\">Sem tempo para ler agora? Baixe este artigo em PDF!<\/span><\/strong><\/p>\n<p><script charset=\"utf-8\" type=\"text\/javascript\" src=\"\/\/js.hsforms.net\/forms\/embed\/v2.js\"><\/script><br \/>\n<script>\nhbspt.forms.create({\nregion: \"na1\",\nportalId: \"5430441\",\nformId: \"0ced5949-c607-48c5-8d39-f0179ca418eb\"\n});\n<\/script><\/p>\n<\/div>\n<h2>Quais s\u00e3o as caracter\u00edsticas da buva e do capim-amargoso?<\/h2>\n<p>O capim-amargoso \u00e9 uma planta perene com capacidade de formar perfilhos, possui um sistema radicular composto por rizomas curtos que acumulam grandes quantidades de amido.<\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ciclo longo, podendo passar os 2 anos;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sua reprodu\u00e7\u00e3o \u00e9 facilitada, j\u00e1 que pode ser tanto por rizoma, quanto semente;<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Alta prolifera\u00e7\u00e3o reprodutiva: al\u00e9m de produzir em torno de 1000 sementes, se dispersa facilmente pelo vento. Dentre outras.<\/span><\/li>\n<\/ol>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4183 size-full\" src=\"https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2018\/06\/aprenda-a-manejar-buva-e-capim-amargoso2.jpg\" alt=\"Planta adulta de capim-amargoso.\" width=\"175\" height=\"315\" srcset=\"https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2018\/06\/aprenda-a-manejar-buva-e-capim-amargoso2.jpg 175w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2018\/06\/aprenda-a-manejar-buva-e-capim-amargoso2-167x300.jpg 167w\" sizes=\"auto, (max-width: 175px) 100vw, 175px\" \/><span style=\"font-weight: 400; font-size: 10pt;\">Planta adulta de capim-amargoso.<\/span><\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4184\" src=\"https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2018\/06\/aprenda-a-manejar-buva-e-capim-amargoso3.jpg\" alt=\"Infloresc\u00eancia tipo pan\u00edcula do capim-amargo\" width=\"200\" height=\"312\" \/><span style=\"font-size: 10pt;\">Infloresc\u00eancia tipo pan\u00edcula do capim-amargo.<\/span><\/p>\n<p>A buva \u00e9 uma planta anual com <strong>alta produ\u00e7\u00e3o de sementes<\/strong>, podendo chegar a <strong>200 mil sementes por planta<\/strong>, apresenta formato piramidal e germina muito bem no per\u00edodo de entressafra, sendo esse um bom momento para controle.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4185\" src=\"https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2018\/06\/aprenda-a-manejar-buva-e-capim-amargoso4.jpg\" alt=\"Planta adulta de buva\" width=\"210\" height=\"355\" \/><span style=\"font-weight: 400; font-size: 10pt;\">Planta adulta de buva<\/span><\/p>\n<h2>Buva e plantio direto: por que temos menor ocorr\u00eancia?<\/h2>\n<p>Podemos classificar as sementes como<strong> fotobl\u00e1sticas positivas<\/strong> (necessitam de luz para germinar) ou <strong>fotobl\u00e1sticas negativas <\/strong>(n\u00e3o precisam de luz para germinar).<\/p>\n<p>A buva \u00e9 uma esp\u00e9cie fotobl\u00e1stica positiva, com isso, <strong><a href=\"https:\/\/rehagro.com.br\/blog\/sistema-de-plantio-direto-no-brasil\/\" target=\"_blank\" rel=\"noopener\">a ado\u00e7\u00e3o do sistema de plantio direto<\/a><\/strong> reduz a ocorr\u00eancia desta planta daninha, pois a palhada formada sob o solo impede a passagem de luz, impossibilitando a germina\u00e7\u00e3o.<\/p>\n<p>Por isso, \u00e9 muito importante colocar palha no sistema utilizando esp\u00e9cies com potencial para tal fun\u00e7\u00e3o, por exemplo, a braqui\u00e1ria.<\/p>\n<p><a href=\"https:\/\/conteudo.rehagro.com.br\/guia-identificacao-plantas-daninhas?utm_campaign=material-graos&amp;utm_source=guia-plantas-daninhas&amp;utm_medium=blog\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-39624 size-full\" title=\"Clique e baixe o material gratuitamente!\" src=\"https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2025\/09\/banner-guia-identificacao-plantas-daninhas.png\" alt=\"Guia Identifica\u00e7\u00e3o de plantas daninhas\" width=\"980\" height=\"317\" srcset=\"https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2025\/09\/banner-guia-identificacao-plantas-daninhas.png 980w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2025\/09\/banner-guia-identificacao-plantas-daninhas-300x97.png 300w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2025\/09\/banner-guia-identificacao-plantas-daninhas-768x248.png 768w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2025\/09\/banner-guia-identificacao-plantas-daninhas-370x120.png 370w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2025\/09\/banner-guia-identificacao-plantas-daninhas-270x87.png 270w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2025\/09\/banner-guia-identificacao-plantas-daninhas-740x239.png 740w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2025\/09\/banner-guia-identificacao-plantas-daninhas-150x49.png 150w\" sizes=\"auto, (max-width: 980px) 100vw, 980px\" \/><\/a><\/p>\n<h2>Como evitar o surgimento de novos biotipos de capim-amargoso e buva?<\/h2>\n<p>Para impedir o surgimento de plantas daninhas resistentes a mol\u00e9culas de herbicidas, \u00e9 preciso adotar a rota\u00e7\u00e3o de princ\u00edpios ativos de herbicidas, pois, desta forma se reduz a press\u00e3o de sele\u00e7\u00e3o.<\/p>\n<p>Neste tipo de rota\u00e7\u00e3o, \u00e9 recomendado que se utilize princ\u00edpios ativos com diferentes mecanismos de a\u00e7\u00e3o, por isso a import\u00e2ncia de se buscar acompanhamento t\u00e9cnico para melhor posicionamento de produtos.<\/p>\n<h2>Controle do capim-amargoso e buva<\/h2>\n<p>As plantas de capim-amargoso apresentam <strong>maior sensibilidade a herbicidas<\/strong> nos est\u00e1dios iniciais de desenvolvimento, desta forma, \u00e9 preciso evitar que a planta se estabele\u00e7a e comece a formar rizomas e grandes touceiras.<\/p>\n<p>Os herbicidas s\u00e3o muito eficientes quando as plantas apresentam entre 3 e 4 folhas, quando se inicia o perfilhamento, ou no rebrote a efici\u00eancia reduz muito, esta \u00e9 ainda menor quando se forma touceiras.<\/p>\n<p>Para fazer o controle qu\u00edmico destas plantas infestantes, \u00e9 preciso fazer um levantamento da incid\u00eancia destas plantas avaliando o est\u00e1dio fenol\u00f3gico.<\/p>\n<p>Abaixo s\u00e3o apresentados alguns <strong>ingredientes ativos que podem ser utilizados para o controle destas daninhas<\/strong> em est\u00e1dio inicial de desenvolvimento (entre 2 e 4 folhas).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-41649\" src=\"https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2018\/06\/manejo-capim-amargoso-buva.png\" alt=\"Ingredientes para manejo do capim amargoso e buva\" width=\"497\" height=\"390\" srcset=\"https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2018\/06\/manejo-capim-amargoso-buva.png 497w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2018\/06\/manejo-capim-amargoso-buva-300x235.png 300w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2018\/06\/manejo-capim-amargoso-buva-370x290.png 370w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2018\/06\/manejo-capim-amargoso-buva-270x212.png 270w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2018\/06\/manejo-capim-amargoso-buva-150x118.png 150w\" sizes=\"auto, (max-width: 497px) 100vw, 497px\" \/><\/p>\n<p style=\"text-align: center;\"><span style=\"font-size: 10pt;\">Ingredientes ativos utilizados para controle de capim-amargoso e buva.<\/span><\/p>\n<h3>\u00c9 preciso realizar aplica\u00e7\u00f5es sequenciais para controle de capim-amargoso e buva?<\/h3>\n<p>A aplica\u00e7\u00e3o sequencial depende do n\u00edvel de infesta\u00e7\u00e3o destas plantas daninhas. Se o manejo n\u00e3o foi realizado de maneira correta na entressafra, as aplica\u00e7\u00f5es sequenciais podem ser uma boa alternativa para o controle, podendo ser feita a desseca\u00e7\u00e3o e ap\u00f3s 10 dias mais uma aplica\u00e7\u00e3o.<\/p>\n<h2>Transforme a forma como voc\u00ea realiza a pulveriza\u00e7\u00e3o na sua lavoura!<\/h2>\n<p>No curso <a href=\"https:\/\/rehagro.com.br\/cursos-livres\/pulverizacao-perfeita-mais-produtividade-e-menos-desperdicio?utm_campaign=materiais-cl-ppg&amp;utm_source=textos&amp;utm_medium=blog\"><strong>Pulveriza\u00e7\u00e3o Perfeita: Mais Produtividade e Menos Desperd\u00edcio<\/strong><\/a>, voc\u00ea vai aprender como otimizar cada aplica\u00e7\u00e3o, reduzir desperd\u00edcios e obter os melhores resultados com t\u00e9cnicas modernas e de f\u00e1cil implementa\u00e7\u00e3o. O conte\u00fado \u00e9 direto ao ponto, pr\u00e1tico e ensinado por especialistas com vasta experi\u00eancia no setor agr\u00edcola.<\/p>\n<p>Prepare-se para tomar decis\u00f5es mais assertivas e elevar o n\u00edvel da sua produ\u00e7\u00e3o!<\/p>\n<p><a href=\"https:\/\/rehagro.com.br\/cursos-livres\/pulverizacao-perfeita-mais-produtividade-e-menos-desperdicio?utm_campaign=materiais-cl-ppg&amp;utm_source=textos&amp;utm_medium=blog\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-39956 size-full\" title=\"Clique e saiba mais sobre o curso!\" src=\"https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/01\/banner-curso-ppg.jpg\" alt=\"Curso Pulveriza\u00e7\u00e3o Perfeita: Mais Produtividade e Menos Desperd\u00edcio\" width=\"980\" height=\"317\" srcset=\"https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/01\/banner-curso-ppg.jpg 980w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/01\/banner-curso-ppg-300x97.jpg 300w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/01\/banner-curso-ppg-768x248.jpg 768w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/01\/banner-curso-ppg-370x120.jpg 370w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/01\/banner-curso-ppg-270x87.jpg 270w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/01\/banner-curso-ppg-740x239.jpg 740w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/01\/banner-curso-ppg-150x49.jpg 150w\" sizes=\"auto, (max-width: 980px) 100vw, 980px\" \/><\/a><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-medium wp-image-16049\" src=\"https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/11\/alessandro-alvarenga-300x96.jpg\" alt=\"Alessandro Alvarenga\" width=\"300\" height=\"96\" srcset=\"https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/11\/alessandro-alvarenga-300x96.jpg 300w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/11\/alessandro-alvarenga-768x246.jpg 768w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/11\/alessandro-alvarenga-370x118.jpg 370w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/11\/alessandro-alvarenga-270x86.jpg 270w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/11\/alessandro-alvarenga-740x237.jpg 740w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/11\/alessandro-alvarenga-150x48.jpg 150w, https:\/\/rehagro.com.br\/blog\/wp-content\/uploads\/2022\/11\/alessandro-alvarenga.jpg 975w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>O capim-amargoso (Digitaria insularis)\u00a0\u00e9 uma planta perene com alta capacidade de dispers\u00e3o pelo vento e com excelente adaptabilidade as diferentes regi\u00f5es brasileiras. Al\u00e9m destas caracter\u00edsticas que o fazem ser uma planta de dif\u00edcil controle, o mesmo apresenta biotipos resistentes \u00e0 mol\u00e9cula de glifosato dificultando ainda mais seu manejo. A buva (Conyza spp.), tamb\u00e9m \u00e9 uma [&hellip;]<\/p>\n","protected":false},"author":21,"featured_media":4187,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[213],"tags":[268,267,464],"class_list":["post-4181","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-graos","tag-buva","tag-capim-amargoso","tag-plantas-daninhas"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Capim-amargoso: veja m\u00e9todos de controle e preven\u00e7\u00e3o<\/title>\n<meta name=\"description\" content=\"Descubra como combater o capim-amargoso de forma eficiente, garantindo a produtividade da sua planta\u00e7\u00e3o.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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