Interactions Between Quizalofop-p-ethyl and Acetolactate Synthase–Inhibiting Herbicides in Acetyl-coA Carboxylase Inhibitor–Resistant Rice Production

2018 ◽  
Vol 32 (3) ◽  
pp. 297-303 ◽  
Author(s):  
Samer Y. Rustom ◽  
Eric P. Webster ◽  
David C. Blouin ◽  
Benjamin M. McKnight
Keyword(s):  
Field Study ◽  
Acetolactate Synthase ◽  
Rice Production ◽  
Research Station ◽  
Acetyl Coa Carboxylase ◽  
Red Rice ◽  
Acetyl Coa

AbstractA field study was conducted in 2015 and 2016 at the H. Rouse Caffey Rice Research Station (RRS) to evaluate antagonistic, synergistic, or neutral interactions of quizalofop when mixed with ALS-inhibiting herbicides labeled in rice production. Quizalofop was applied at 120 g ai ha−1. Mixture herbicides included penoxsulam at 40 g ai ha−1, penoxsulam+triclopyr at 352 g ai ha−1, halosulfuron at 53 g ai ha−1, bispyribac at 34 g ai ha−1, orthosulfamuron+halosulfuron at 94 g ai ha−1, orthosulfamuron+quinclorac at 491 g ai ha−1, imazosulfuron at 211 g ai ha−1, and bensulfuron at 43 g ai ha−1. All ALS herbicides mixed with quizalofop indicated antagonistic responses for red rice, CL-111, CLXL 745, or barnyardgrass control at either 14 or 28 days after treatment (DAT). At 28 DAT, quizalofop mixed with penoxsulam or bispyribac controlled barnyardgrass 34 to 38%, compared with an expected control of 97%. In addition, these same mixtures controlled red rice, CL-111, and CLXL-745 61 to 67% at 28 DAT compared with an expected control of 96 to 97%. A second application of quizalofop at 120 g ha−1was applied at 28 DAT. At 42 DAT, neutral responses were indicated for all mixtures except with quizalofop mixed with penoxsulam containing products.

Evaluation of sequential applications of quizalofop-p-ethyl and propanil plus thiobencarb in acetyl-coA carboxylase inhibitor–resistant rice

2020 ◽  
Vol 34 (4) ◽  
pp. 506-510
Author(s):  
Samer Y. Rustom ◽  
Eric P. Webster ◽  
Benjamin M. McKnight ◽  
David C. Blouin
Keyword(s):  
Field Study ◽  
Weed Control ◽  
Rice Yield ◽  
Weedy Rice ◽  
Research Station ◽  
Acetyl Coa Carboxylase ◽  
Red Rice ◽  
Acetyl Coa ◽  
Rough Rice ◽  
Before And After

AbstractA field study was conducted in 2015 and 2016 at the H. Rouse Caffey Rice Research Station near Crowley, Louisiana, to evaluate the interactions of quizalofop and a mixture of propanil plus thiobencarb applied sequentially or mixed to control weedy rice and barnyardgrass. Visual weed control evaluations occurred at 14, 28, and 42 d after treatment (DAT). Quizalofop was applied at 120 g ai ha−1 at 7, 3, and 1 d before and after propanil plus thiobencarb were each applied at 3,360 g ai ha−1. In addition, quizalofop was applied alone and in a mixture with propanil plus thiobencarb at day 0. Control of red rice ‘CL-111’ and ‘CLXL-745’ was greater than 91% when quizalofop was applied alone at day 0, similar to control for quizalofop applied 7, 3, and 1 d prior to propanil plus thiobencarb at all evaluation dates. Control of the same weeds treated with quizalofop plus propanil plus thiobencarb applied in a mixture at day 0 was 70% to 76% at each evaluation date, similar to quizalofop applied 1 or 3 d after propanil plus thiobencarb. A similar trend in control of barnyardgrass by 88% to 97% occurred when quizalofop was applied alone and by 48% to 53% at 14, 28, and 42 DAT when the mixture was used. ‘PVL01’ rough rice yield was 4,060 kg ha−1 when treated with quizalofop alone; however, yield was reduced to 3,180 kg ha−1 when it was treated with quizalofop mixed with propanil plus thiobencarb at day 0, similar to PVL01 rice treated with quizalofop 1 or 3 d following the propanil plus thiobencarb application.

Mixture Interactions of Quizalofop and Reduced Rates of Halosulfuron

2021 ◽  
pp. 1-24
Author(s):  
L. Connor Webster ◽  
Eric P. Webster ◽  
David C. Blouin ◽  
Benjamin M. McKnight
Keyword(s):  
Field Study ◽  
Rice Production ◽  
Weedy Rice ◽  
Research Station ◽  
Red Rice ◽  
Antagonistic Interaction ◽  
The Impact ◽  
Low Rate ◽  
Mixture Interactions

A field study was conducted in 2017 and 2018 at the LSU Agricultural Center H. Rouse Caffey Rice Research Station (RRS) near Crowley, LA. to evaluate the impact of reduced rates of halosulfuron on quizalofop activity in Louisiana rice production. Halosulfuron and a prepackaged mixture of halosulfuron plus thifensulfuron were evaluated at 0, 17, 35, or 53 g ai ha−1 and 34 or 53 g ai ha−1, respectively, in a mixture with quizalofop at 120 g ai ha-1. Control of (%) of barnyardgrass and red rice as well as two non-ACCase resistant rice lines, CL-111 and CLXL-745, were recorded at 14 and 28 d after treatment (DAT). The red rice, CL-111, and CLXL-745 represented a weedy rice population. Across all species evaluated at 14 DAT, all halosulfuron and halosulfuron plus thifensulfuron containing mixtures resulted in antagonism with an observed control of 79 to 90%, compared to an expected control of 96 to 99%. At 28 DAT, all halosulfuron containing mixtures resulted in neutral interactions for barnyardgrass control. Quizalofop mixed with halosulfuron plus thifensulfuron at the lower rate of 34 g ha−1 was able to overcome the antagonism compared with the higher rate of 53 g ha−1 for barnyardgrass control at 28 DAT. Both the high and the low rate of halosulfuron plus thifensulfuron resulted in antagonistic interaction for red rice, CL-111, and CLXL-745 control at 28 DAT. This research suggests that mixing quizalofop with halosulfuron plus thifensulfuron should be avoided, especially at the higher rate of 53 g ha−1.

Do adjuvants reduce the antagonism of quizalofop-p-ethyl when mixed with bispyribac-Na?

2019 ◽  
Vol 34 (2) ◽  
pp. 180-187
Author(s):  
L. Connor Webster ◽  
Eric P. Webster ◽  
David C. Blouin ◽  
Benjamin M. McKnight
Keyword(s):  
Field Study ◽  
Nitrogen Source ◽  
Weed Control ◽  
Weedy Rice ◽  
Research Station ◽  
Rice Cultivars ◽  
Red Rice ◽  
Silicon Based ◽  
Grass Weed ◽  
Antagonistic Interactions

AbstractAcetyl co-enzyme A carboxylase (ACCase)-resistant rice allows quizlaofop-p-ethyl to be applied as a POST control of troublesome grass weeds. A field study was conducted in 2017 and 2018 at the H. Rouse Caffey Rice Research Station near Crowley, LA, to evaluate the influence of a crop oil concentrate (COC), a silicon-based surfactant plus a nitrogen source (SNS), or a high-concentrate COC (HCOC) in overcoming the grass weed control antagonism of quizalofop-p-ethyl when mixed with bispyribac-Na. Quizalofop-p-ethyl was applied at 120 g ai ha−1, bispyribac-Na was applied at 34 g ai ha−1, and all adjuvants were applied at 1% vol/vol. Antagonistic interactions were observed at 14 d after treatment (DAT) when quizalofop-p-ethyl was mixed with bispyribac-Na with no adjuvant for control of barnyardgrass, the non–ACCase-tolerant rice cultivars ‘CL-111’ and ‘CLXL-745’, and red rice. At 14 DAT, antagonism of quizalofop-p-ethyl for control of barnyardgrass was observed when mixed with bispyribac-Na plus COC, SNS, or HCOC, with an observed control of 43%, 63%, and 86%, respectively, compared with an expected control of 95% for quizalofop-p-ethyl alone. However, the antagonism of quizalofop-p-ethyl when mixed with bispyribac-Na plus HCOC for barnyardgrass control at 14 DAT was overcome by 28 DAT, with an observed control of 91%, compared with an expected control of 97%. Synergistic or neutral interactions were observed at 14 and 28 DAT when COC, SNS, or HCOC was added to a mixture of quizalofop-p-ethyl plus bispyribac-Na for CL-111, CLXL-745, and red rice control. According to the results of this study, HCOC is the most effective adjuvant for quizalofop-p-ethyl and bispyribac-Na mixtures for control of weedy rice and barnyardgrass.

scholarly journals CYP81A P450s are involved in concomitant cross‐resistance to acetolactate synthase and acetyl‐CoA carboxylase herbicides inEchinochloa phyllopogon

2018 ◽  
Vol 221 (4) ◽  
pp. 2112-2122 ◽  
Author(s):  
Satoshi Iwakami ◽  
Yoshitaka Kamidate ◽  
Takuya Yamaguchi ◽  
Masumi Ishizaka ◽  
Masaki Endo ◽  
...  
Keyword(s):  
Acetolactate Synthase ◽  
Cross Resistance ◽  
Acetyl Coa Carboxylase ◽  
Acetyl Coa

Resistance to Acetolactate Synthase and Acetyl Co-A Carboxylase Inhibitors in North Carolina Italian Ryegrass (Lolium perenne)

2011 ◽  
Vol 25 (4) ◽  
pp. 659-666 ◽  
Author(s):  
Aman Chandi ◽  
Alan C. York ◽  
David L. Jordan ◽  
Josh B. Beam
Keyword(s):  
North Carolina ◽  
Lolium Perenne ◽  
Acetolactate Synthase ◽  
Italian Ryegrass ◽  
Cross Resistance ◽  
Acetyl Coa Carboxylase ◽  
Acetyl Coa ◽  
Als Inhibitors

Diclofop-resistant Italian ryegrass is widespread in southwestern North Carolina, and growers have resorted to using acetolactate synthase (ALS) inhibitors such as mesosulfuron and pyroxsulam to control this weed in wheat. In the spring of 2007, mesosulfuron failed to control Italian ryegrass in several wheat fields. Seed were collected from six fields in two counties and greenhouse studies were conducted to determine response to mesosulfuron and the acetyl-CoA carboxylase (ACCase) inhibitors diclofop and pinoxaden. All populations were resistant to diclofop and cross-resistant to pinoxaden. Five of the six populations were resistant to diclofop, pinoxaden, and mesosulfuron. An additional study with two biotypes confirmed cross-resistance to the ALS inhibitors imazamox, mesosulfuron, and pyroxsulam. Resistance to mesosulfuron was heritable.

scholarly journals First Detection and Characterization of Cross- and Multiple Resistance to Acetyl-CoA Carboxylase (ACCase)- and Acetolactate Synthase (ALS)-Inhibiting Herbicides in Black-Grass (Alopecurus myosuroides) and Italian Ryegrass (Lolium multiflorum) Populations from Ireland

Agriculture ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1272
Author(s):  
Vijaya Bhaskar Alwarnaidu Vijayarajan ◽  
Patrick D Forristal ◽  
Sarah K Cook ◽  
David Schilder ◽  
Jimmy Staples ◽  
...  
Keyword(s):  
Lolium Multiflorum ◽  
Acetolactate Synthase ◽  
Target Site ◽  
Italian Ryegrass ◽  
Integrated Weed Management ◽  
Multiple Resistance ◽  
Acetyl Coa Carboxylase ◽  
Acetyl Coa ◽  
Alopecurus Myosuroides ◽  
Target Site Resistance

Understanding the resistance spectrum and underlying genetic mechanisms is critical for managing herbicide-resistant populations. In this study, resistance to acetyl CoA carboxylase (ACCase) and acetolactate synthase (ALS) inhibitors was investigated in four suspected resistant populations of Alopecurus myosuroides (ALOMY-001 to ALOMY-004) and Lolium multiflorum (LOLMU-001 to LOLMU-004), collected from cereal production fields in Ireland. Glasshouse assays with three ALOMY-active herbicides [propaquizafop, cycloxydim (ACCase) and mesosulfuron + iodosulfuron (ALS)] or five LOLMU-active herbicides [pinoxaden, propaquizafop, cycloxydim (ACCase) and mesosulfuron + iodosulfuron, pyroxsulam (ALS)], and target-site resistance mechanism studies, based on pyrosequencing, were carried out in each of those populations. For A. myosuroides, Ile-1781-Leu ACCase mutation contributed to propaquizafop and cycloxydim resistance (shoot dry weight GR50 resistance factor (RF) = 7.5–35.5) in all ALOMY populations, and the independent Pro-197-Thr or Pro-197-Ser ALS mutation contributed to mesosulfuron + iodosulfuron resistance (RF = 3.6–6.6), in ALOMY-002 to ALOMY-004. Most of the analyzed plants for these mutations were homo/heterozygous combinations or only heterozygous. For L. multiflorum, phenotypic resistance to mesosulfuron + iodosulfuron (RF = 11.9–14.6) and pyroxsulam (RF = 2.3–3.1) was noted in all LOLMU populations, but the Pro-197-Gln or Pro-197-Leu ALS mutation (mostly in homozygous status) was identified in LOLMU-001, LOLMU-002 and LOLMU-004 only. Additionally, despite no known ACCase mutations in any LOLMU populations, LOLMU-002 survived pinoxaden and propaquizafop application (RF = 3.4 or 1.3), and LOLMU-003 survived pinoxaden (RF = 2.3), suggesting the possibility of non-target-site resistance mechanisms for ACCase and/or ALS resistance in these populations. Different resistance levels, as evidenced by a reduction in growth as dose increased above field rates in ALOMY and LOLMU, were due to variations in mutation rate and the level of heterozygosity, resulting in an overall resistance rating of low to moderate. This is the first study confirming cross- and multiple resistance to ACCase- and ALS-inhibiting herbicides, highlighting that resistance monitoring in A. myosuroides and L. multiflorum in Ireland is critical, and the adoption of integrated weed management strategies (chemical and non-chemical/cultural strategies) is essential.

Response of acetyl-CoA carboxylase-resistant rice cultivars and advanced lines to florpyrauxifen-benzyl

2020 ◽  
Vol 34 (6) ◽  
pp. 814-817 ◽  
Author(s):  
Tameka L. Sanders ◽  
Jason A. Bond ◽  
Benjamin H. Lawrence ◽  
Bobby R. Golden ◽  
Thomas W. Allen ◽  
...  
Keyword(s):  
Field Study ◽  
Growth Stage ◽  
Rice Yield ◽  
Rice Cultivars ◽  
Acetyl Coa Carboxylase ◽  
Acetyl Coa ◽  
Resistant Cultivars ◽  
Rough Rice

AbstractFlorpyrauxifen-benzyl and quizalofop were available for POST applications in 2018; however, little is known about the response of acetyl-CoA carboxylase (ACCase)–resistant rice cultivars and advanced lines to POST herbicides. A field study was conducted in 2017 and 2018 at Stoneville, MS, to characterize the response of ACCase-resistant rice cultivars and advanced lines to POST applications of florpyrauxifen-benzyl. The imidazolinone-resistant (IR) rice cultivars ‘CL163’ and ‘CLXL 745’, and ACCase-resistant rice cultivars ‘PVL01’, ‘PVL013’, ‘PVL024-B’, ‘PVL038’, ‘PVL080’, and ‘PVL081’were treated with florpyrauxifen-benzyl at 0 (nontreated control for each cultivar) and 58 g ai ha–1 at the four-leaf to one-tiller (LPOST) growth stage. At 14 d after treatment (DAT), PVL01 was injured 5% to 6% greater than CLXL 745, PVL013, and PVL081; however, injury was ≤10% at that evaluation for all cultivars. Similarly, injury was ≤13% for all cultivars 28 DAT. Mature heights were reduced for all cultivars except PVL013 and PVL081. Rough rice yield was ≥100% of the control for all cultivars except PVL081, PVL013, and CL163. Results suggest that florpyrauxifen-benzyl can safely be applied POST to rice cultivars grown in Mississippi as well as ACCase-resistant cultivars that are currently under development.

Isolation and expression of genes for acetolactate synthase and acetyl-CoA carboxylase in Echinochloa phyllopogon, a polyploid weed species

2012 ◽  
Vol 68 (7) ◽  
pp. 1098-1106 ◽  
Author(s):  
Satoshi Iwakami ◽  
Akira Uchino ◽  
Hiroaki Watanabe ◽  
Yuji Yamasue ◽  
Tatsuya Inamura
Keyword(s):  
Acetolactate Synthase ◽  
Acetyl Coa Carboxylase ◽  
Weed Species ◽  
Acetyl Coa ◽  
Expression Of Genes ◽  
Echinochloa Phyllopogon

Mesosulfuron-Resistant Italian Ryegrass (Lolium Multiflorum) Biotype from Texas

2008 ◽  
Vol 22 (3) ◽  
pp. 431-434 ◽  
Author(s):  
Andrew T. Ellis ◽  
Gaylon D. Morgan ◽  
Thomas C. Mueller
Keyword(s):  
Winter Wheat ◽  
Plant Biomass ◽  
Lolium Multiflorum ◽  
Acetolactate Synthase ◽  
Italian Ryegrass ◽  
Acetyl Coa Carboxylase ◽  
Acetyl Coa ◽  
Resistance Level ◽  
Greenhouse Experiments

Acetolactate synthase (ALS)–inhibiting herbicides are often used to control Italian ryegrass in winter wheat in Texas. An Italian ryegrass biotype near Waco, TX was evaluated for resistance to mesosulfuron in field and greenhouse experiments. Control of the biotype in the field was less than 10% with the label rate of mesosulfuron (15 g ai/ha). Greenhouse studies confirmed that the biotype was resistant to mesosulfuron; control of the biotype was less than 35% at 120 g ai/ha mesosulfuron. The herbicide dose required to reduce plant biomass of a susceptible and the Waco biotype by 50% (GR50) was 1.3 and 31 g ai/ha, respectively, indicating a resistance level of 24-fold in the Waco biotype. However, the Waco biotype was controlled with the acetyl-CoA carboxylase inhibitors diclofop and pinoxaden.

Molecular basis of multiple resistance to herbicides inhibiting acetyl-CoA carboxylase and acetolactate synthase in American sloughgrass (Beckmannia syzigachne) from China

2016 ◽  
Vol 67 (11) ◽  
pp. 1208 ◽  
Author(s):  
Lang Pan ◽  
Haitao Gao ◽  
Han Wu ◽  
Liyao Dong
Keyword(s):  
Acetolactate Synthase ◽  
Alternative Methods ◽  
Multiple Resistance ◽  
Homozygous Mutation ◽  
Acetyl Coa Carboxylase ◽  
Acetyl Coa ◽  
Wheat Field ◽  
Sequence Method ◽  
Resistance To Herbicides ◽  
Als Inhibitors

American sloughgrass (Beckmannia syzigachne Steud.) is a problematic grass that is widely distributed in wheat and oilseed rape fields in China. The herbicides fenoxaprop-P-ethyl and mesosulfuron-methyl failed to control B. syzigachne JCWJ-R populations collected from a wheat field in Jiangsu Province. Dose-response experiments showed that JCWJ-R was resistant to the acetyl-CoA carboxylase (ACCase) inhibitors fenoxaprop-P-ethyl (33.8-fold), haloxyfop-R-methyl (12.7-fold), clethodim (7.8-fold) and pinoxaden (11.6-fold), and to the acetolactate synthase (ALS) inhibitors mesosulfuron-methyl (15.9-fold), pyroxsulam (17.6-fold), flucarbazone-Na (10.7-fold) and imazethapyr (7-fold). Resistance to ALS inhibitors was due to a Pro-197-Ser mutation in the ALS gene and resistance to ACCase inhibitors was due to an Ile-1781-Leu mutation in the ACCase gene. A derived cleaved amplified polymorphic sequence method was developed to detect the ALS mutation in B. syzigachne. This was combined with a previously established method to detect Ile-1781-Leu, and the mutation frequency and homozygous mutation rates in the JCWJ-R population were determined. The evolution of multiple resistance to ACCase and ALS inhibitors in this B. syzigachne population indicated that alternative methods should be developed to control resistant weeds.

Sign in / Sign up

Export Citation Format

Share Document