Assessment of flumioxazin soil behavior and thermal stability in aqueous solutions

Eason, Kayla M.; Grey, Timothy L.; Cabrera, M. L.; Basinger, Nicholas T.; Hurdle, Nicholas L.

doi:10.1016/j.chemosphere.2021.132477

Cited by 8 publications

(8 citation statements)

References 40 publications

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“…At the sites north of 51°N latitude, at later planting dates early weed escapes were partially controlled by the planting operation which resulted in improved weed control. Variation in soil organic matter, soil moisture and soil pH values influence the level of adsorption of herbicide to soil colloids, and as such, more active ingredient would be expected to be in soil water solution and available for plant uptake in the soils at sites south of 51°N (Table 1) (Mahoney et al 2014, Westra et al 2015, Eason et al 2021. Subsequently the greater availability of herbicide in soil water solution at sites south of 51°N latitude likely accounts for improved weed control relative to sites north of 51°N latitude.…”

Section: Herbicide Efficacy and Consistencymentioning

confidence: 99%

“…Flumioxazin and pyroxasulfone can be applied in the fall or spring prior to planting spring wheat to supplement or replace pre-seeding herbicide applications (Anonymous 2020). For effective activity, pyroxasulfone and flumioxazin require moisture after application to transition the active ingredients from the surface of the soil into soil water solution where they become available for plant uptake (Westra et al 2015, Eason et al 2021). Both flumioxazin and pyroxasulfone have low leaching potential and are primarily degraded in the soil by microbial activity which is temperature and moisture dependent (Shaner 2014, Nash 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Both flumioxazin and pyroxasulfone have low leaching potential and are primarily degraded in the soil by microbial activity which is temperature and moisture dependent (Shaner 2014, Nash 2016). These herbicides effectively form a layer of active ingredient in the soil that weed species must germinate in, infiltrate with roots, or grow through in order to emerge (Westra et al 2015, Eason et al 2021. When combined, the two separate modes of action of flumioxazin and pyroxasulfone can act sequentially on the same weed species, reducing selection for resistance (Beckie 2006, Beckie and Reboud 2009, Beckie and Harker 2017.…”

Section: Introductionmentioning

confidence: 99%

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Fall-applied residual herbicides improve broadleaf weed management in ultra-early wheat (Triticum aestivum L.) production systems on the northern Great Plains

et al. 2022

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Ultra-early spring wheat ( Triticum aestivum L.) planting systems based on soil temperature on the northern Great Plains have lower overall variability in grain yield, and can increase grain yield relative to current calendar date-based spring wheat planting systems used in the region. However, ultra-early planting when soils are cold (2 °C), and resulting early crop emergence, precludes most foliar pre-seeding weed control options. Field trials were conducted at three sites in western Canada from 2017 to 2019 to evaluate the crop safety, broadleaf weed efficacy, and growing system stability resulting from the inclusion of fall applications of soil-applied residual herbicides prior to planting wheat ultra-early the following spring. Flumioxazin (protoporphyrinogen oxidase inhibitor; Weed Science Society of America (WSSA) group 14) and pyroxasulfone (very long chain fatty acid synthesis inhibitor; WSSA group 15) were applied alone and in combination at multiple rates in the late fall prior to ground freeze. The following spring, hexaploid spring wheat was planted ultra-early, based on a soil temperature trigger of 2 °C, and later, triggered by a soil temperature of 8 °C. When planting was completed ultra-early, grain yield was greater, and variability of grain yield was lower. Herbicide treatments increased broadleaf weed control, and in some environments further increased grain yield and reduced grain yield variability without resulting in phytotoxicity. The ability to safely incorporate fall-applied residual herbicides into ultra-early spring wheat planting systems provides an option for growers to adopt ultra-early planting without negatively impacting weed management on their farms.

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Section: Herbicide Efficacy and Consistencymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fall-applied residual herbicides improve broadleaf weed management in ultra-early wheat (Triticum aestivum L.) production systems on the northern Great Plains

et al. 2022

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“…Flumioxazin (Valor SX® herbicide, Valent U.S.A., Walnut Creek, CA) (Anonymous 2016) is a protoporphyrinogen oxidase (PPO)-inhibiting herbicide (WSSA Group 14) that was first registered in the United States in 2002 for preemergence control of broadleaf weed species in soybean and peanut (Arachis hypogaea L.) (Shaner 2014;USEPA 2023). Flumioxazin is considered a low environmental risk herbicide due to its short half-life and reduced soil persistence after application (Alister et al 2008;Eason et al 2022). Pyroxasulfone (i.e., Zidua® herbicide, BASF, Research Triangle Park, NC) (Anonymous 2022) is a very-long-chain fatty-acid (VLCFA)-inhibiting herbicide (WSSA Group 15) that was first registered in the United States in 2012 for preemergence control of grasses and small-seeded broadleaves in corn (Zea mays L.), wheat (Triticum aestivum L.), and soybeans (Shaner 2014;USEPA 2023).…”

Section: Introductionmentioning

confidence: 99%

Impact of cereal rye cover crop on the fate of preemergence herbicides flumioxazin and pyroxasulfone and control of Amaranthus spp. in soybean

Nunes,

Arneson,

Wallace

et al. 2023

Weed Sci

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Preemergence herbicides associated with cereal rye (Secale cereale L.) cover crop (cereal rye) can be an effective waterhemp [Amaranthus tuberculatus (Moq.) Sauer.] and Palmer amaranth (Amaranthus palmeri S. Watson) management strategy in soybean [Glycine max (L.) Merr.] production. Delaying cereal rye termination until soybean planting (planting green) optimizes biomass production and weed suppression but might further impact the fate of preemergence herbicides. Limited research is available on the fate of preemergence herbicides applied over living cereal rye in the planting green system. Field experiments were conducted in Illinois, Kansas, Pennsylvania, and Wisconsin to evaluate the fate of flumioxazin and pyroxasulfone and Amaranthus spp. residual control under different cover crop management practices in soybean in 2021 and 2022 (8 site-years). A flumioxazin + pyroxasulfone herbicide premix was applied preemergence at soybean planting under no-till without cereal rye, cereal rye early terminated before soybean planting, and cereal rye terminated at soybean planting. Flumioxazin and pyroxasulfone concentrations in the soil were quantified at 0, 7, and 21 d after treatment (DAT) and Amaranthus spp. density was determined at postemergence herbicide application. The presence of cereal rye biomass intercepted flumioxazin and pyroxasulfone at preemergence application and reduced concentration in the soil when compared to no-till, mainly at 0 DAT. Main differences in herbicide concentration were observed between no-till and cereal rye treatments rather than cereal rye termination times. Despite reducing herbicide concentration in the soil, early-season residual Amaranthus spp. control was not affected by the presence of the cereal rye biomass. The adoption of effective preemergence herbicides associated with a properly managed cereal rye cover crop is an effective option for integrated Amaranthus spp. management programs in soybean production systems.

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“…Flu is usually used to control annual broadleaf weeds and grass weeds in garden. It can kill weeds by inhibiting the activity of protoporphyrinogen oxidase (PPO) (Ando et al., 2017; Asher et al., 2020; Eason et al., 2022; Wang, Li, et al., 2017; Wang, Zhang, et al., 2019). The half‐life of Flu in soil is approximately 15 days (Chen et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

A colloidal gold immunochromatography for the detection of flumioxazin residues in fruits

Wang

Liu

et al. 2022

Journal of Food Science

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In this study, an excellent monoclonal antibody (mAb) was produced that could sensitively and specifically recognize Flu in fruit samples. The mAb belonged to the IgG2 subclass and had a half-inhibitory concentration (IC 50 ) of 0.59 ng/ml and a limit of detection (LOD) of 0.13 ng/ml. A cross-reactivity test revealed that the mAb had good specificity for Flu. A gold nanoparticle-based lateralflow immunochromatographic (ICA) strip was used for the rapid screening of Flu in fruit samples. The method had a visual cut-off value of 10 µg/kg for Flu in three different fruit samples when evaluated with the naked eye. The LODs were 5.25, 3.13, and 4.64 µg/kg for Flu in apples, grapes, and oranges, respectively, as obtained with the aid of a strip scan reader. Therefore, this ICA strip assay represented a potential tool for the detection of Flu in fruit samples.

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Assessment of flumioxazin soil behavior and thermal stability in aqueous solutions

Cited by 8 publications

References 40 publications

Fall-applied residual herbicides improve broadleaf weed management in ultra-early wheat (Triticum aestivum L.) production systems on the northern Great Plains

Fall-applied residual herbicides improve broadleaf weed management in ultra-early wheat (Triticum aestivum L.) production systems on the northern Great Plains

Impact of cereal rye cover crop on the fate of preemergence herbicides flumioxazin and pyroxasulfone and control of Amaranthus spp. in soybean

A colloidal gold immunochromatography for the detection of flumioxazin residues in fruits

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