herbicide Articles

  • 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

  • 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.

  • 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 ...


  • 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.

  • 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

  • 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.

  • 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 Sigma-Aldrich Co., LLC

  • 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

  • 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

  • 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

  • The essential oils in agriculture as an alternative strategy to herbicides: a case study

    In this study we investigated the allelopathic effect of some essential oils extracted from aromatic plants to inhibit weed seed germination. The study was performed to evaluate the potential genotoxic effect of lavender on Vicia faba root meristems by genotoxicity tests (comet assay and micronuclei test) and to evaluate microbial diversity fluctuation by Restriction Fragment Length Polymorphism ...


    By Inderscience Publishers

  • Effects of repeated pulsed herbicide exposures on the growth of aquatic macrophytes

    Many contaminants are released into aquatic systems intermittently in a series of pulses. Pulse timing and magnitude can vary according to usage, compound‐specific physicochemical properties, and use area characteristics. Standard laboratory ecotoxicity tests typically employ continuous exposure concentrations over defined durations and thus may not accurately and realistically reflect the ...


    By John Wiley & Sons, Ltd.

  • The herbicide atrazine induces hyperactivity and compromises tadpole detection of predator chemical cues

    The ability to detect chemical cues is often critical for freshwater organisms to avoid predation and find food and mates. In particular, reduced activity and avoidance of chemical cues signaling predation risk are generally adaptive behaviors that reduce prey encounter rates with predators. Here, we examined the effects of the common herbicide atrazine on the ability of Cuban tree frog ...


    By John Wiley & Sons, Ltd.

  • Comparative toxicity of twenty herbicides to five periphytic algae and the relationship with mode of action

    We used 5 species periphytic algae to conduct toxicity assays of twenty herbicides. The 5 tested species represent riverine primary producers most likely to be affected by herbicides. A fluorescence microplate toxicity assay was used as an efficient and economical high‐throughput assay. Toxicity characteristics were analyzed, focusing on their relationship to herbicide mode of action (MoA). ...


    By John Wiley & Sons, Ltd.

  • Efficacy of herbicide seed treatments for controlling striga infestation of sorghum

    Witchweed (Striga spp.) infestations are the greatest obstacle to sorghum [Sorghum bicolor (L.) Moench] grain production in many areas in Africa. The objective of this study was to evaluate the efficacy of herbicide seed treatments for controlling Striga infestation of sorghum. Seeds of an acetolactate synthase (ALS) herbicide–tolerant sorghum hybrid were treated with two ALS-inhibiting ...

  • 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

  • Herbicides Confidential Client, Ontario, Canada (2,4-D and 2,4,5-T)

    Ontario, Canada Project Pilot-Scale demonstration on soil containing phenoxy-acid herbicides (2,4-D, and 2,4,5-T), and other chlorinated pesticides (DDT, DDD, and DDE) Summary The application of DARAMEND® served to reductively de-chlorinate, and subsequently mineralize the chlorinated herbicides and pesticides. The Challenge ...


  • Persistence and management of dinitroaniline herbicides residues in sandy loam soil

    The addition of organic manure affects the biological, chemical and physical properties of soil that control the fate of herbicides. Three dinitroaniline herbicides were studied to asses their persistence, dissipation and residue management in sandy loam soil with and without addition of farmyard manure (FYM) under middle western Indian agro-climatic conditions. The herbicides, pendimethalin ...


    By Inderscience Publishers

  • Questions concerning the potential impact of glyphosate‐based herbicides on amphibians

    Use of glyphosate‐based herbicides is increasing worldwide. Here we review the available data related to potential impacts of these herbicides on amphibians and conduct a quantitative meta‐analysis. Because only a little is known about environmental concentrations of glyphosate in amphibian habitats, and virtually nothing about environmental concentrations of the substances added to the ...


    By John Wiley & Sons, Ltd.

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you