herbicide Articles

  • Why are certain herbicides banned?

    Herbicides, also known as weedkillers, are chemical substances used to control and kill unwanted plants (weeds), leaving the desired plants unharmed. While these products are very useful for farmers, they are not always safe. In fact, many herbicides that were in common use around the world a few years ago are slowly being banned. In this blog post, we will look at a few herbicides that are used ...


    By NW Solutions

  • Maximising herbicide efficiency - Case Study

    The most important component in achieving an effective and efficient spray solution will always be the water source, so in hard water areas, using a good quality water conditioner is essential to prevent chemical breakdown and maximise herbicide performance. Around the country water can range from soft to hard and its pH can also vary depending on location. From Yorkshire down ...


    By Ilex EnviroSciences Limited

  • Photo-assisted electrochemical degradation of the commercial herbicide atrazine

    This paper presents a degradation study of the pesticide atrazine using photo-assisted electrochemical methods at a dimensionally stable anode (DSA®) of nominal composition Ti/Ru0.3Ti0.7O2 in a prototype reactor. The effects of current density, electrolyte flow-rate, as well as the use of different atrazine concentrations are reported. The results indicate that the energy consumption is ...


    By IWA Publishing

  • Leaching of three sulfonylurea herbicides during sprinkler irrigation

    Sulfonylurea herbicides are widely applied on the Canadian prairies to control weeds in a variety of crops. Several sulfonylurea herbicides are mobile in soil, and there is concern about their possible movement to ground water. This study was performed to assess the susceptibility of three sulfonylurea herbicides commonly used in prairie crop production to leach under a worst-case scenario. ...

  • One Year Later · Persistent Herbicides in Compost

    ONE YEAR has passed since the Washington State University (WSU) composting facility and the Spokane Regional Compost Facility discovered traces of persistent herbicides in their composts. In Spokane, the source of contamination is a compound called clopyralid. Compost contamination at WSU initially involved the herbicide picloram, but clopyralid has since been detected in the compost also. In ...


  • Effects of the herbicide imazapyr on juvenile Oregon spotted frogs

    Conflict between native amphibians and aquatic weed management in the Pacific Northwest is rarely recognized because most native stillwater‐breeding amphibian species move upland during summer, when herbicide application to control weeds in aquatic habitats typically occurs. However, aquatic weed management may pose a risk for aquatic species present in wetlands through the summer, such as the ...


    By John Wiley & Sons, Ltd.

  • Quantifying vapor drift of dicamba herbicides applied to soybean

    Recent advances in biotechnology have produced cultivars of corn, soybean, and cotton resistant to the synthetic‐auxin herbicide dicamba. This technology will allow dicamba herbicides to be applied in new crops, at new periods in the growing season, and over greatly expanded areas, including postemergence applications in soybean. From past and current use in corn and small grains, dicamba vapor ...


    By John Wiley & Sons, Ltd.

  • Development of a Bioaccumulation Model For Herbicides in Ulva and Clams

    Coastal lagoons are shallow water ecosystems characterised by high biodiversity and primary and secondary production, and with an elevated number of different habitats. These habitats have a key role as nursery and rest areas for a great number of marine species and birds. During the last decades these ecosystems have been exposed tomany anthropogenic pressures (urban, domestic, agricultural ...


  • Herbicides Confidential Client, Ontario, Canada (Metolachlor)

    Ontario, Canada Project Treatment of Soil Impacted by Chlorinated Pesticides Summary This project was the second of three pilot scale projects within a research and development program designed to validate certain DARAMEND® applications on chlorinated pesticide impacted soil. The Challenge Treatment of 250 tons of soil ...


  • Adsorption and degradation of phenoxyalkanoic acid herbicides in soils: A review

    The primary aim of this review on the phenoxyalkanoic acid herbicides (2,4‐D, MCPA, dichlorprop‐P, mecoprop‐P, 2,4‐DB and MCPB) was to compare the extent of their adsorption in soils and degradation rates to assess their potential for groundwater contamination. We found that adsorption decreased in the sequence 2,4‐DB > 2,4‐D > MCPA > dichlorprop‐P > mecoprop‐P. Herbicides are predominantly ...


    By John Wiley & Sons, Ltd.

  • Analysis of the Herbicide Triazines Using Ascentis™ C18

    This application demonstrates the suitability of the Ascentis C18 for the analysis of the herbicide triazines simazine, cyanazine, and atrazine.  An Ascentis C18, 15 cm x 4.6 mm I.D., 5 μm particles was used under isocratic mobile phase conditoins (70:30 water:acetonitrile) for the separation.  All samples where diluted to 50 μg/mL, in 70:30 water:acetonitrile mobile phase, and 10 ...


    By MilliporeSigma

  • Trend of herbicide loads in the river Rhine and its tributaries

    Many policies have been established and actions have been taken to reduce pesticide pollution of surface waters. However, the effectiveness of these initiatives was rarely tested on an empirical basis. This study suggests that evidence on the policy effects can be evaluated by analyzing the temporal changes in the loads rather than the concentrations of active ingredients in rivers. It is shown ...


    By John Wiley & Sons, Ltd.

  • Evaluation of FTIR spectroscopy as a maturity index for herbicide-contaminated composts

    This paper analyses the use of Fourier Transform Infrared (FTIR) spectroscopy as a maturity index for herbicide-contaminated green wastes composts. Four in-vessel composting systems were set-up with Compost A constituting of uncontaminated grass clippings and Composts B, C and D contaminated with atrazine, 2,4-D and tordon 101 respectively. The physicochemical properties of the composts were ...


    By Inderscience Publishers

  • Photocatalytic degradation of the herbicide cinosulfuron in aqueous TiO 2 suspension

    Abstract The photocatalytic degradation of a sulfonylurea herbicide, cinosulfuron, has been studied in TiO 2 aqueous suspensions. A first order kinetic law was found. The influence of the initial concentration of cinosulfuron and of the initial radiant flux on the kinetics were evaluated. The identification of the intermediate products was based on high performance liquid chromatography coupled ...


    By Springer

  • Surfactant-Enhanced Desorption of Atrazine and Linuron Residues as Affected by Aging of Herbicides in Soil

    Abstract  In the present work, we studied the efficiency of two surfactants, one anionic (SDS) and other non-ionic (Triton X-100), in the desorption of atrazine and linuron after 0, 3, and 9 months of soil-herbicide aging time. Batch desorption studies were conducted in soil-water and in soil-water-surfactant systems. The kinetic pattern of ...


    By Springer

  • Identification of the Herbicide Surflan and Its Active Ingredient Oryzalin, a Dinitrosulfonamide, as Xenoestrogens

    Numerous environmental contaminants have been identified as endocrine disruptors (EDs) — substances that alter endocrine homeostasis by interfering with the biological action, production, or pharmacokinetics of endogenous hormones. Xenoestrogens are those EDs whose biological activity is similar to endogenous estrogen. This report presents data that identified Surflan, a proprietary herbicide ...


    By Springer

  • Tissue-specific expression of rice CYP72A21 induced by auxins and herbicides

    Cytochrome monooxygenase P450s (CYPs) comprise one of the largest enzyme families in plants. Some P450s are involved in xenobiotic metabolism: they confer herbicide tolerance and are induced by chemical treatments. We isolated a novel P450 cDNA, CYP72A21 (accession number, AB237166), from rice (Oryza sativa L. cv. Nipponbare) seedlings treated with a mixture of 2,4-dichlorophenoxyacetic acid ...


    By Springer

  • Effects of herbicide‐treated host plants on the development of Mamestra brassicae L. caterpillars

    Herbicides are widely used pesticides that affect plants by changing their chemistry. In doing so, herbicides might also influence the quality of plants as food for herbivores. To study the effects of herbicides on host plant quality, we treated 3 plant species (Plantago lanceolata L., P. major L., and Ranunculus acris L.) with sublethal rates of either a sulfonylurea (Atlantis WG, Bayer ...


    By John Wiley & Sons, Ltd.

  • Variation in amphibian response to two formulations of glyphosate‐based herbicides

    Variation in toxicity among formulations and species makes it difficult to extrapolate results to all species and all formulations of herbicides. We exposed larval wood frogs (Lithobates sylvaticus) from four populations to two glyphosate‐based herbicides, Roundup Weed and Grass Control™ and Roundup WeatherMax™. 96 hour LC50 values for both formulations varied among the populations (RWGC: 0.14 ...


    By John Wiley & Sons, Ltd.

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