Mechanism of Antagonism of Mesotrione on Sulfonylurea Herbicides

Schuster, C.; Al‐Khatib, Kassim; Dille, J. Anita

doi:10.1614/ws-06-217.1

Cited by 28 publications

(29 citation statements)

References 20 publications

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“…The antagonistic interaction between mesotrione drift followed by either imazethapyr or chlorimuron is comparable to that found by Schuster et al (2007), who documented a similar response with mesotrione tank-mixed with nicosulfuron. In that study, the absorption and translocation of nicosulfuron in green foxtail [Setaria viridis (L.) Beauv.]…”

Section: Seed Yieldsupporting

confidence: 85%

Simulated mesotrione drift followed by glyphosate, imazethapyr, bentazon or glyphosate plus chlorimuron in soybean

Brown

Robinson²,

Chandler³

et al. 2009

Can. J. Plant Sci.

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2009. Simulated mesotrione drift followed by glyphosate, imazethapyr, bentazon or glyphosate plus chlorimuron in soybean. Can. J. Plant Sci. 89: 265Á272. There have been anecdotal accounts of increased crop sensitivity due to herbicide drift followed by an in-crop herbicide. An experiment was conducted from 2005 to 2007 at Elora, Ridgetown, and Woodstock, Ontario, to determine the effects of simulated mesotrione drift followed by in-crop applications of glyphosate, imazethapyr, bentazon and glyphosate plus chlorimuron on glyphosate-resistant soybean [Glycine max (L.) Merr.] visual injury, plant height, plant density, shoot dry weight, and seed yield. As the rate of simulated mesotrione drift increased, there was an increase in soybean injury and a decrease in shoot dry weight, height, and yield. Simulated mesotrione drift followed by bentazon resulted in synergistic responses in injury shortly after application in some environments. This increase in injury was transient, with no synergistic responses in density, shoot dry weight, and yield. In contrast, antagonistic responses were observed when glyphosate, imazethapyr, or glyphosate plus chlorimuron were applied after simulated mesotrione drift in some environments. Further research is required to develop a better understanding of the interactions of drift followed by the application of an in-crop herbicide. Nurse, R. E. et Sikkema, P. H. 2009. Incidence de la de´rivede´rive du mesotrione suivie de l'application de glyphosate, d'imazethapyr, de bentazon ou de glyphosatechlorimuron chez le soja. Can. J. Plant Sci. 89: 265Á272. Selon des rapports anecdotiques, les cultures deviendraient plus sensibles aux herbicides lors d'une de´rivede´rive de ces derniers suivie d'une application. De 2005 a` 2007, les auteurs ont entrepris une expe´rienceexpe´rience a` Elora, a` Ridgetown et a` Woodstock, en Ontario, en vue d'e´tablire´tablir les effets de la de´rivede´rive simuleé du mesotrione puis d'applications de glyphosate, d'imazethapyr, de bentazon et glyphosate'chlorimuron a` une culture de soja [Glycine max (L.) Merr.] re´sistantere´sistante au glyphosate. Plus pre´cise´mentpre´cise´pre´cise´ment, ils ont examineíes dommages visibles, la hauteur des plants, la densite´dudensite´du peuplement, le poids sec des pousses et le rendement grainier. Quand le taux de de´rivede´rive simule´dusimule´du mesotrione augmente, on remarque de plus forts dommages au soja ainsi qu'une baisse du poids sec des pousses, de la hauteur des plants et de leur rendement. La de´rivede´rive simuleé du mesotrione suivie par l'application de bentazon engendre une reáction synergique peuaprè s le traitement, dans certaines conditions. La hausse des dommages estpassagè re, sans reáction synergique au niveau de la densite´dudensite´du peuplement, du poids sec des pousses et du rendement. En revanche, on observe une reáction antagoniste quand l'application de glyphosate, d'imazethapyr ou de glyphosate'chlorimuron suit la de´rivede´rive simuleé du mesotrione, a` quelques endroits. Il faudrait approfond...

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Section: Seed Yieldsupporting

confidence: 85%

Simulated mesotrione drift followed by glyphosate, imazethapyr, bentazon or glyphosate plus chlorimuron in soybean

Brown

Robinson²,

Chandler³

et al. 2009

Can. J. Plant Sci.

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“…studied in the present trials). Thus, in addition to an ALSinhibiting herbicide antagonizing an HPPDinhibiting herbicide, results indicated that certain HPPD-inhibiting herbicides can also reduce the efficacy of certain ALS-inhibiting herbicides as previous research has also shown (Schuster et al, 2007). According to our results, this potential for a two-way interaction tended to be species dependent, probably relating with species sensitivity to the herbicides tested, as well as herbicide dependent taking into account the different behavior of the mixtures with rimsulfuron or with nicosulfuron on P. miliaceum.…”

Section: Resultsmentioning

confidence: 67%

Annual Grasses Control With Topramezone in Mixture With Als-Inhibiting Herbicides

Damalas

Gitsopoulos²,

Koutroubas

et al. 2015

Planta daninha

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Panicoid grasses are major weeds of maize and sugarcane as well as of several other important grains, including sorghum, pearl millet, and foxtail millet. Pot trials were conducted to study the activity and potential interactions of topramezone in mixture with recommended rates of rimsulfuron or nicosulfuron on three annual panicoid grasses (i.e. Echinochloa oryzoides,E.phyllopogon, and Panicum miliaceum). Target weeds were treated at the four- to five-leaf growth stage. On the basis of fresh weight reduction, topramezone alone provided 78% control of E.oryzoides, 68% control of E.phyllopogon, and 99% control of P.miliaceum. Topramezone plus rimsulfuron or nicosulfuron provided decreased control of both Echinochloa spp. compared with topramezone alone. The decreased control of E.oryzoidesand E.phyllopogon was more pronounced with rimsulfuron as a companion herbicide in the mixtures. Slightly decreased control of P.milaceum was observed with topramezone plus rimsulfuron compared with topramezone alone, but this was not the case for topramezone plus nicosulfuron. Increased topramezone rates mixed with rimsulfuron or nicosulfuron did not improve control of E.oryzoides and E.phyllopogon compared with the lowest topramezone rate. Also, increased topramezone rates mixed with rimsulfuron or nicosulfuron showed decreased control of both Echinochloa spp. when compared with either rimsulfuron or nicosulfuron alone, suggesting a two-way interaction between topramezone and the ALS-inhibiting herbicides. The above-mentioned interaction was not observed in P.miliaceum, probably related with species sensitivity to the herbicides tested. Newly introduced or naturalized panicoid grasses in maize fields may complicate selection of companion herbicides and rates for effective weed control.

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“…In sensitive plants, due to a decrease in the biosynthesis of carotenoids, bleaching of pigments can be noticed as a consequence of the HPPD inhibition. Nicosulfuron, a member of the sulfonylurea group of herbicides, inhibits acetolactate synthase (ALS), the key enzyme in the biosynthesis of the essential branchedchain amino acids: leucine, valine, and isoleucine (Schuster et al, 2007), thus affecting protein synthesis in plants. Both herbicides are registered for weed control in sweet maize and, when used at the recommended rate, they are rapidly metabolized to herbicidally inactive metabolites (O'Sullivan et al, 2000;Schuster et al, 2007;Kopsell et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the nutritional profile of sweet maize after herbicide and foliar fertilizer application

Mesarović

Srdić

Mladenovic-Drinic

et al. 2019

Journal of Cereal Science

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Intensive weed management is required to meet the growing demands of sweet maize production. Herbicide application is inevitable in sweet maize production, while foliar fertilizer is commonly used in cropping in order to improve crop yield and quality. The effect of nicosulfuron and mesotrione, with and without foliar fertilizer, on the content of phytochemicals (i.e. carotenoids, tocopherols and free phenolic acids) in the kernels of three sweet maize hybrids was evaluated. Herbicides applied alone mainly improved the nutritive profile of the sweet maize kernel. The application of herbicides in combination with foliar fertilizer showed a high variability in the concentration of carotenoids, tocopherols and free phenolic acids. The significant change in the content of phytochemicals was induced by the applied treatments, but it is also genotype-dependent, which was also confirmed by the Principal Component Analysis.

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Mechanism of Antagonism of Mesotrione on Sulfonylurea Herbicides

Cited by 28 publications

References 20 publications

Simulated mesotrione drift followed by glyphosate, imazethapyr, bentazon or glyphosate plus chlorimuron in soybean

Simulated mesotrione drift followed by glyphosate, imazethapyr, bentazon or glyphosate plus chlorimuron in soybean

Annual Grasses Control With Topramezone in Mixture With Als-Inhibiting Herbicides

Evaluation of the nutritional profile of sweet maize after herbicide and foliar fertilizer application

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