Sethoxydim Response to Spray Carrier Chemical Properties and Environment

Nalewaja, John D.; Matysiak, Robert; Szelezniak, E.

doi:10.1017/s0890037x00039749

Cited by 30 publications

(35 citation statements)

References 9 publications

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“…The antagonism of 2,4-D in our experiment from divalent cations is consistent with previous reports on divalent cation antagonism of other weak-acid herbicides such as aminopyralid (Zollinger et al 2010), bentazon (Nalewaja and Matysiak 1993), dicamba (Nalewaja and Matysiak 1993;Roskamp et al 2013;Zollinger et al 2010), glufosinate (Zollinger et al 2010), glyphosate (Bernards et al 2005;Chahal et al 2012; , 1993Thelen et al 1995), MCPA (Nalewaja and Matysiak 1993), quinclorac (Woznica et al 2003), sethoxydim (Nalewaja et al 1994), and tembotrione (Zollinger et al 2010). Further, our results and the results of Roskamp et al (2013) confirm that the 2,4-D dimethylamine salt formulation is antagonized by divalent cations similar to an earlier report by on a 2,4-D diethanolamine salt formulation.…”

Section: Controlsupporting

confidence: 92%

Divalent Cations in Spray Water Influence 2,4-D Efficacy on Dandelion (Taraxacum officinale) and Broadleaf Plantain (Plantago major)

2016

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2,4-dichlorophenoxyacetic acid (2,4-D) is a common ingredient in POST broadleaf herbicides labeled for use in turf, pastures, rangeland, and grain crops. The herbicide 2,4-D is a weak acid, and when dissociated can bind to cations present in hard-water spray solutions and/or fertilizer solutions. Experiments were conducted with 2,4-D dimethylamine to evaluate the effect of cation solutions on herbicide efficacy on the perennial broadleaf weeds dandelion and broadleaf plantain. The objectives of this research were to (1) determine if 2,4-D efficacy is influenced by the divalent cations, calcium (Ca), magnesium (Mg), manganese (Mn), and zinc (Zn) in spray solution; and (2) determine if adding the adjuvant ammonium sulfate (AMS) to the spray solution can overcome antagonism. Broadleaf plantain and dandelion control was reduced and plant size and mass increased when 2,4-D was applied in a Ca solution in comparison to deionized water. However, 2,4-D antagonism was overcome when AMS was added as an adjuvant to the spray solution. Magnesium caused 2,4-D antagonism on both weed species in one run of the experiment similar to Ca solution and AMS was successful at overcoming antagonism when added to the tank mixture. Some 2,4-D antagonism from Mn was noticed even when AMS was in the tank mix, but Zn fertilizer solutions did not antagonize 2,4-D activity on either weed species. Although divalent cations can antagonize 2,4-D dimethylamine and reduce perennial broadleaf weed control, adding AMS can overcome this antagonism when Ca and Mg are the primary cations in spray solution. Applicators should avoid using Mn fertilizers when applying 2,4-D dimethylamine because AMS did not successfully overcome antagonism.

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Section: Controlsupporting

confidence: 92%

Divalent Cations in Spray Water Influence 2,4-D Efficacy on Dandelion (Taraxacum officinale) and Broadleaf Plantain (Plantago major)

2016

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“…Estes promovem a inibição enzimática, bloqueando a síntese de lipídeos nas plantas suscetíveis (Burke et al, 2006), prejudicando a formação das paredes celulares e desestruturando os tecidos em formação (Nalewaja et al, 1994). Os principais sintomas promovidos pela ação desses herbicidas são: paralisação do crescimento, amarelecimento das folhas, coloração arroxeada ou avermelhada nas folhas mais velhas, seguida de morte apical (DeFelice et al, 1989).…”

Section: Introductionunclassified

Eficácia de herbicidas inibidores da ACCase no controle de gramíneas em lavouras de soja

et al. 2010

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Objetivou-se com este trabalho avaliar a eficácia de herbicidas inibidores da ACCase, aplicados isoladamente ou em associações, no controle das espécies de plantas daninhas pertencentes à família das gramíneas Brachiaria decumbens, Digitaria ciliaris, Eleusine indica, Brachiaria plantaginea e Cenchrus echinatus, na cultura da soja. O experimento foi conduzido em campo, em delineamento de blocos ao acaso com quatro repetições. Os tratamentos avaliados foram: clethodim (84 g ha-1), clethodim + quizalofop-p-ethyl (48 + 40 g ha-1), [clethodim + fenoxaprop-p-ethyl] (50 + 50 g ha-1), sethoxydim (230 g ha-1), tepraloxydim (100 g ha-1), fluazifop-p-butyl (125 g ha-1), haloxyfop-methyl (60 g ha-1) e testemunha sem herbicida. A convivência das plantas de soja com as gramíneas infestantes resultou em perda significativa na produtividade de grãos. Os melhores níveis de controle de B. decumbens foram verificados com a utilização de haloxyfop-methyl. Tepraloxydim pode ser considerado seletivo a B. decumbens. Nenhum tratamento proporcionou controle final de D. ciliaris superior a 90%, porém menor eficiência foi verificada quando se aplicaram sethoxydim e fluazifop-p-butyl. Apenas os tratamentos sethoxydim e [clethodim + fenoxaprop-p-ethyl] não mostraram controle satisfatório de E. indica. B. plantaginea foi a espécie mais facilmente controlada pelos herbicidas avaliados; no entanto, haloxyfop-methyl, tepraloxydim, clethodim e [clethodim + fenoxaprop-p-ethyl] se destacaram no controle dessa invasora. A adição de quizalofop-p-ethyl ao clethodim proporcionou incremento significativo no controle de C. echinatus. Também os herbicidas haloxyfop-methyl e tepraloxydim apresentaram controle satisfatório dessa espécie daninha.

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“…The ACCase inhibitors cause inhibition of this enzyme, resulting in blocking the lipids synthesis in susceptible plants (Burke et al, 2006). From this, harmful effects begin to compromise the cell wall formation, especially in growing regions (Schneider, 2011;Nalewaja et al, 1994). The symptoms observed in these treatments were growth stoppage and yellowing leaves, as described by DeFelice et al (1989).…”

Section: Resultsmentioning

confidence: 94%

Controle químico de milho voluntário resistente ao herbicida glyphosate

Marca

Procópio²,

Silva³

et al. 2015

RBHerbicidas

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-With the introduction in national agriculture of corn hybrids resistant to glyphosate herbicide, weed management, especially grasses, it was favored. However, volunteer maize plants coming from grains lost in mechanized harvesting can cause significant losses in crops subsequently sown, which has often been soybeans. Thus, the aim of this study was to evaluate the effect of different herbicides in controlling volunteer maize plants resistant to glyphosate herbicide. The experiment was conducted in the Brazilian municipality of Nova Xavantina, MT, between July and September 2014, in an area with a center pivot-type irrigation system. Grains of the F2 generation of AG 8061 VT PRO2 ® hybrid were used for assessments. The experimental design was randomized blocks with four replications. The treatments consisted in the application of thirteen different herbicides: haloxyfop-p-methyl 54 g a.i.

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Sethoxydim Response to Spray Carrier Chemical Properties and Environment

Cited by 30 publications

References 9 publications

Divalent Cations in Spray Water Influence 2,4-D Efficacy on Dandelion (Taraxacum officinale) and Broadleaf Plantain (Plantago major)

Divalent Cations in Spray Water Influence 2,4-D Efficacy on Dandelion (Taraxacum officinale) and Broadleaf Plantain (Plantago major)

Eficácia de herbicidas inibidores da ACCase no controle de gramíneas em lavouras de soja

Controle químico de milho voluntário resistente ao herbicida glyphosate

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