Influence of Water Hardness and Co-applied Herbicides on Saflufenacil Efficacy

Roskamp, Jared M.; Chahal, Gurinderbir S.; Johnson, William

doi:10.1094/cm-2012-1213-01-rs

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…To maintain the great efficacy of herbicide applied at reduced rates, adding an adjuvant to the spray liquid containing herbicides has been suggested [6]. Water can also influence the activity of herbicides; therefore, the final weed control result depends on its quality, i.e., primarily its reaction, temperature, and hardness [7,8]. Furthermore, numerous factors contribute to the effectiveness of herbicides, such as the choice of herbicide, application rate and timing, application method, pH of spray liquid, and technique [9].…”

Section: Introductionmentioning

confidence: 99%

Effect of Multifunctional Adjuvants on Physical and Chemical Features of Spray Liquid and Efficacy in Sugar Beet

et al. 2023

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In the period 2017–2019, field experiments were conducted at the Research and Education Center Gorzyń, unit Złotniki (52°486′ N; 16°819′ E), Poznan University of Life Sciences, at the Luvisols, under natural weather conditions, to evaluate the effect of multifunctional methylated seed oil (EXP 1, 2, and 3) and standard adjuvants (AtB and S) on the efficacy of mixtures phenmedipham + ethofumesate and metamitron applied in full (PEM 1) and reduced rates (PEM 2) in sugar beet. Field studies were carried out and three applications of herbicides were administrated subsequent to the emergence of weeds (BBCH 11–12). PEM applied at reduced rates with EXP was more effective than after AtB and S adjuvants. They enabled the attainment of high and consistent efficacy of herbicides (with EXP—96–97%, AtB—97%, S—95%, compared to PEM 1—93%, and PEM 2—82%), irrespective of varying weather conditions during, and subsequent to, their application. The sugar beet root yield from herbicide treatments after tested adjuvants was higher than from the untreated control and after application of reduced rates of herbicides without adjuvants.

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Section: Introductionmentioning

confidence: 99%

Effect of Multifunctional Adjuvants on Physical and Chemical Features of Spray Liquid and Efficacy in Sugar Beet

et al. 2023

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“…Hard water causes many problems in domestic and industrial usage including in the area of agrochemicals, causing changes in the effectiveness of fertilizers, pesticides and ISR promoters. (Imai et al, 1997;Roskamp, 2012;Tharp & Sigler, 2013;Devkota & Johnson, 2016). The electrical potential of 6, 12, and 24 V can be used for removing water hardness instead of chemical treatments (Malakootian et al, 2010) and also for water hardness detection (Bhattacharjee et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Voltage dependence of rock meal based foliar fertilizers with ISR properties, water solutions

Ganchev¹

2023

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The electrical conductivity of several rock meal based fertilizers with expressed ISR activity, measured as voltage dropping when their distilled water solution was affected with low – voltage electric currents of 5 volts (DC and AC) was examined. For comparison, hard and soft tap water (with 196 and 65 ppm CaCO3 hardness), 1% distilled water solutions of NaCL and CuSO4.5H2O solution and 0.1% solution of organosilicone surfactant were also tested in the conducted trials. The result shows that hard water, solutions of NaCL and CuSO4.5H2O and solutions of fertilizers with fulvic acids content can cause drops in the voltage of electric currents. The same results were received for the fertilizer on the basis of K2O, SiO2, Cu, although other products with similar content do not cause a voltage decrease. There were no differences in the conducted tests between the DC and AC electric currents.

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Digitaria insularis control by using herbicide mixtures application in soybean pre-emergence

Bauer

Albrecht

et al. 2021

Rev. Fac. Nac. Agron. Medellín

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Sourgrass (Digitaria insularis) is one of the main weeds in the soybean crop. In order to control its growth, an increase of herbicide rates is required to simplify its management as it a plant with high vegetative capacity and seed production. It implies to select the herbicide-resistent Digitaria insularis biotypes. Nevertheless, some information is still contrasting the antagonist of synthetic auxinic herbicides, associated with glyphosate and ACCase inhibitors mixtures, for the control of weeds resistant or tolerant to herbicides. This study aimed to evaluate the D. insularis control, with a mixture of herbicides applied in soybean pre-emergence, with sequential application in soybean post-emergence, and to check possible antagonism between ACCase inhibitors herbicides with synthetic auxins and other latifolicides. The experiment was conducted in Palotina, Paraná (Brazil) and Corpus Christi, Canindeyú, (Paraguay.) The treatments consisted of associations of glyphosate, ACCase inhibitors (clethodim, haloxyfop), and latifolicides (2,4-D, triclopyr, dicamba, carfentrazone, saflufenacil, chlorimuron). A randomized block design was used. Only in Palotina, the weed control was satisfactory after sequential application in post-emergence. An antagonism for all synthetic auxins was observed with glyphosate+clethodim or haloxyfop mixtures, in both locations. As a result, in Palotina an efficacious control of perennial D. insularis was found in pre-emergence burndown for some mixtures such as glyphosate+ACCase inhibitor added to carfentrazone, saflufenacil, or chlorimuron. Antagonism was observed for all synthetic auxins, in both locations. In Corpus Christi, the herbicide associations were not effective, even with the postemergence application in soybean of glyphosate+clethodim. With ineffective control for treatments composed with synthetic auxins, the post-emergence application in soybean increased the weed control with satisfactory final controls for all treatments.

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Influence of Water Hardness and Co-applied Herbicides on Saflufenacil Efficacy

Cited by 4 publications

References 17 publications

Effect of Multifunctional Adjuvants on Physical and Chemical Features of Spray Liquid and Efficacy in Sugar Beet

Effect of Multifunctional Adjuvants on Physical and Chemical Features of Spray Liquid and Efficacy in Sugar Beet

Voltage dependence of rock meal based foliar fertilizers with ISR properties, water solutions

Digitaria insularis control by using herbicide mixtures application in soybean pre-emergence

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