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Herbicide mixtures to control dayflowers and drift effect on Coffee cultures

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dc.contributor.author Freitas, N.M.
dc.contributor.author Freitas, F.C.L.
dc.contributor.author Furtado, I.F.
dc.contributor.author Teixeira, M.F.F.
dc.contributor.author Silva, V.F.
dc.date.accessioned 2018-12-13T11:35:22Z
dc.date.available 2018-12-13T11:35:22Z
dc.date.issued 2018
dc.identifier.citation FREITAS, N. M. et al. Herbicide mixtures to control dayflowers and drift effect on coffee cultures. Planta Daninha, Viçosa, v. 36, p. 1-9, 2018. pt_BR
dc.identifier.issn 1806-9681
dc.identifier.uri http://dx.doi.org/10.1590/s0100-83582018360100047 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/10685
dc.description.abstract The dayflower species Commelina benghalensis and C. diffusa are among the main weeds in coffee crops. The purpose of this study was to evaluate the efficacy of herbicides/herbicide mixtures in controlling dayflower species and to evaluate the possible intoxication of coffee cultures, as well as the effect of mixture interactions. Two experiments were conducted, the first one in a 12 x 2 factorial arrangement with 12 herbicides/mixtures (glyphosate, glyphosate + metsulfuron- methyl, glyphosate + flumioxazin, glyphosate + 2.4-D, glyphosate + oxyfluorfen, glyphosate + carfentrazone-ethyl, metsulfuron-methyl, flumioxazin, 2.4-D, oxyfluorfen and carfentrazone-ethyl) and two dayflower species (C. benghalensis and C. diffusa) and the second one, in a 6 x 2 + 1 factorial arrangement, with six herbicides/mixtures (glyphosate, glyphosate + metsulfuron-methyl, glyphosate + flumioxazin, glyphosate + 2.4-D, glyphosate + oxyfluorfen and glyphosate + carfentrazone-ethyl) and two application forms on coffee plants (reaching 1/3 of the coffee canopy and with a protected canopy), plus a control treatment without herbicides. There was tolerance variation within the dayflower species to the tested herbicides. Commelina benghalensis was controlled by glyphosate, 2.4-D, glyphosate + 2.4-D and glyphosate + metsulfuron-methyl, while C. diffusa was controlled by 2.4-D and glyphosate mixtures by + metsulfuron-methyl, glyphosate + oxyfluorfen and glyphosate + flumioxazin. The mixture glyphosate + 2.4-D is effective in controlling dayflower, but it caused intoxication and growth reduction of the coffee. There was antagonism in the mixture glyphosate + carfentrazone-ethyl in controlling both species, as well as for glyphosate + oxyfluorfen and glyphosate + flumioxazin for C. benghalensis. pt_BR
dc.description.abstract As espécies de trapoeraba Commelina benghalensis e C. diffusa estão entre as principais plantas infestantes na cultura do café. Objetivou-se com este trabalho avaliar a eficácia de herbicidas/misturas de herbicidas no controle das espécies de trapoeraba e a possível intoxicação na cultura do café. Foram conduzidos dois experimentos, sendo o primeiro em esquema fatorial 12 x 2, com 12 herbicidas/misturas (glyphosate, glyphosate + metsulfuron-methyl, glyphosate + flumioxazin, glyphosate + 2,4-D, glyphosate + oxyfluorfen, glyphosate + carfentrazone-ethyl, metsulfuron-methyl, flumioxazin, 2,4-D, oxyfluorfen e carfentrazone-ethyl) e duas espécies de trapoeraba (C. benghalensis e C. diffusa), e o segundo, em esquema fatorial 6 x 2 + 1, com seis herbicidas/misturas (glyphosate, glyphosate + metsulfuron-methyl, glyphosate + flumioxazin, glyphosate + 2,4-D, glyphosate + oxyfluorfen e glyphosate + carfentrazone-ethyl) e duas formas de aplicação nas plantas de café (atingindo 1/3 da copa do café e pt_BR
dc.format pdf pt_BR
dc.language.iso en pt_BR
dc.publisher Sociedade Brasileira da Ciência das Plantas Daninhas pt_BR
dc.relation.ispartofseries Planta Daninha;v. 36, p. 1-9, 2018;
dc.rights Open Access pt_BR
dc.subject Antagonismo pt_BR
dc.subject Coffea arabica pt_BR
dc.subject Commelina benghalensis pt_BR
dc.subject Commelina diffusa pt_BR
dc.subject Sinergismo pt_BR
dc.subject.classification Cafeicultura::Pragas, doenças e plantas daninhas pt_BR
dc.title Herbicide mixtures to control dayflowers and drift effect on Coffee cultures pt_BR
dc.title Misturas de herbicidas para o controle da trapoeraba e o efeito da deriva na cultura do café pt_BR
dc.type Artigo pt_BR

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