Biologically effective rate of sulfentrazone applied pre-emergence in soybean

WalshKimberly, D; SoltaniNader,; HookerDavid, C; Nurse, Robert E.; SikkemaPeter, H

doi:10.4141/cjps-2014-264

Cited by 19 publications

(24 citation statements)

References 27 publications

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“…All herbicides and herbicide combinations reduced pigweed density and biomass by 91% to 100% and 86% to 100%, respectively, and were not different from the weed-free control. This is consistent with other studies which found excellent control of redroot pigweed with sulfentrazone at similar rates [14] [15].…”

Section: Pigweed Speciessupporting

confidence: 82%

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Weed Control with Sulfentrazone plus a Low Rate of Imazethapyr in White Bean

Taziar¹,

Soltani²,

Shropshire³

et al. 2016

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Section: Pigweed Speciessupporting

confidence: 82%

“…provided up to 81% control of barnyard grass ( Table 6). Wilson et al [14] also noted that sulfentrazone at these rates provided up to 78% control of barnyard grass. S-metolachlor provided 100% control and imazethapyr alone controlled barnyard grass by 69%.…”

Section: Wild Mustardmentioning

confidence: 99%

Weed Control with Sulfentrazone plus a Low Rate of Imazethapyr in White Bean

Taziar¹,

Soltani²,

Shropshire³

et al. 2016

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“…In fact, there is several evidences that herbicide detoxification is responsible for many cases of tolerance of crop plants to herbicides, including corn to nicosulfuron (Liu et al, 2015), cotton to pyrithiobac (Snipes and Seifert, 2003), corn to mesotrione (Ogliari et al, 2014), and soybean to sulfentrazone (Walsh et al, 2015). There is evidence of tolerance of common bean to other ALS inhibitors (Procopio et al, 2009).…”

Section: Tolerance Mechanismmentioning

confidence: 99%

Tolerance of Common Bean Plants to Ethoxysulfuron Herbicide and the Mechanism Involved in the Process

et al. 2016

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-The objectives of this study were to determine the effect of herbicide ethoxysulfuron on the development of commom bean (Phaseolus vulgaris), to evaluate the impact of the herbicide on the crop grain yield and to determine the mechanism of tolerance of common bean to ethoxysulfuron. Field experiments were carried out with several doses of ethoxysulfuron to determine its effect on the grain yield of two varieties of common bean ("IPR Andorinha", "IPR Tangará"). The mechanism of plant tolerance was evaluated through several methods, including the analysis of the ALS enzyme sensitivity to herbicide and the use of P450 inhibitors (the insecticides malathion + chlorpyrifos) and the use of antidote (mefenpyr-diethyl). When the rate of ethoxysulfuron was 83.2 g ha -1 , the grain yield loss reached 25% (IPR Tangará) and 35% (IPR Andorinha). The ALS enzyme activity was severely reduced even at low concentrations ethoxysulfuron (1 μM), indicating that the mechanism of tolerance is not the insensitivity of the herbicide target enzyme. The inhibitors of herbicide detoxification increased the sensitivity of the bean plants to ethoxysulfuron, and the antidote (stimulator of herbicide degradation) mitigated the herbicidal effect. These results strongly support the hypothesis that the mechanism of tolerance of common bean plants to ethoxysulfuron is enhanced herbicide detoxification.Keywords: Phaseolus vulgaris, crop grain yield, ALS enzyme, detoxification. RESUMO -Os objetivos deste trabalho foram determinar o efeito do herbicida ethoxysulfuron sobre o desenvolvimento do feijoeiro (Phaseolus vulgaris), avaliar o impacto do herbicida sobre o rendimento de grãos e determinar o mecanismo de tolerância do feijoeiro ao ethoxysulfuron. Em campo, foram realizados dois experimentos com doses crescentes de ethoxysulfuron, a fim de determinar o seu efeito sobre o desenvolvimento e o rendimento de grãos de dois cultivares (cvs.) de feijão (IPR Andorinha e IPR Tangará). O mecanismo de tolerância das plantas foi determinado através da análise de sensibilidade da enzima ALS ao herbicida, do uso de inseticidas inibidores da P450 (malathion + chlorpyrifos) e do uso de antídoto (mefenpyr-diethyl). Quando a dose de ethoxysulfuron foi de 83,2 g ha -1 , as perdas de rendimento de grãos atingiram 25% (IPR Tangará) e 35% (IPR Andorinha

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“…While Walsh et al (2015) reported 90% control of common lambsquarters with only 133 g a.i. ha (1 pyroxasulfone, more than three times the highest rate evaluated in this study, was needed to provide the same control (90%).…”

mentioning

confidence: 99%

“…(Dayan et al 1996;Niekamp et al 1999;Dirks et al 2000). Although excellent weed control (90%) has been reported for sulfentrazone, level of control was dependent upon weed community composition (Walsh et al 2015).…”

mentioning

confidence: 99%

Weed control in soybean using pyroxasulfone and sulfentrazone

2015

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. 2015. Weed control in soybean using pyroxasulfone and sulfentrazone. Can. J. Plant Sci. 95: 1199Á1204. Pyroxasulfone and sulfentrazone are new herbicides currently being evaluated for weed control in soybean [Glycine max (L.) Merr.] in Ontario, Canada. Seven experiments were conducted over a 3-yr period (2011 to 2013) at Ridgetown and Exeter, Ontario, to evaluate weed management using pyroxasulfone, sulfentrazone and their tank-mixes relative to the industry standard, imazethapyr plus metribuzin. Tank-mixing pyroxasulfone and sulfentrazone provided up to 97, 46, 60, 100 and 71% control of common lambsquarters (Chenopodium album L.), common ragweed (Ambrosia artemisiifolia L.), green foxtail [Setaria viridis (L.) Beauv.], Powell amaranth [Amaranthus powellii (S.) Wats.] and velvetleaf (Abutilon theophrasti Medic.), respectively, at 2 wk after treatment. Control with pyroxasulfone and sulfentrazone was improved when tank-mixed, relative to application of each herbicide separately. Although control was variable across weed species, no difference in control was identified between pyroxasulfone plus sulfentrazone and imazethapyr plus metribuzin. Soybean yield was up to 2.7, 2.4 and 2.9 t ha(1 for pyroxasulfone, sulfentrazone and pyroxasulfone plus sulfentrazone application, yet imazethapyr plus metribuzin provided the highest yield (3.3 t ha(1 ). This research demonstrates that pyroxasulfone plus sulfentrazone may be used as a valuable weed control option in soybean; however, weed community composition may limit herbicidal utility.

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Biologically effective rate of sulfentrazone applied pre-emergence in soybean

Cited by 19 publications

References 27 publications

Weed Control with Sulfentrazone plus a Low Rate of Imazethapyr in White Bean

Weed Control with Sulfentrazone plus a Low Rate of Imazethapyr in White Bean

Tolerance of Common Bean Plants to Ethoxysulfuron Herbicide and the Mechanism Involved in the Process

Weed control in soybean using pyroxasulfone and sulfentrazone

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